THE MINISTRY OF CONSTRUCTION
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SOCIALIST REPUBLIC OF VIET NAM
Independence - Freedom - Happiness
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No. 04/2008/QD-BXD
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Hanoi, April 3, 2008
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DECISION
PROMULGATING
THE VIETNAM BUILDING CODE ON REGIONAL AND URBAN PLANNING AND RURAL RESIDENTIAL
PLANNING
THE MINISTER OF CONSTRUCTION
Pursuant to the Government’s Decree No. 17/2008/ND-CP of
February 4, 2008, defining the functions, tasks, powers and organizational
structure of the Ministry of Construction;
At the proposal of the director of the Science and
Technology Department and the director of the Institute for Urban and Rural
Planning in Official Utter No. 53/VQH-QHXD2 of January 30, 2008,
DECIDES:
Article 1. To promulgate
together with this Decision the Vietnam Building Code on Regional and Urban
Planning and Rural Residential Planning “QCVN : 01/2008/BXD Vietnam Building
Code on Regional and Urban Planning and Rural Residential Planning” to replace
Part II (construction planning) - Vietnam Building Code, volume 1 - 1997.
Article 2. This Decision
takes effect 15 days after its publication in “CONG BAO.”
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MINISTER OF CONSTRUCTION
Nguyen Hong Quan
VIETNAM BUILDING CODE
REGIONAL AND URBAN PLANNING AND RURAL RESIDENTIAL
PLANNING
Chapter I
GENERAL PROVISIONS
1.1. Scope of application
Vietnam Building Code on Regional and Urban Planning and
Rural Residential Planning consists of regulations which must be complied with
in the process of elaboration, evaluation and approval of construction plans;
serves as a legal ground for management of the promulgation and application of
construction planning standards and regulations on construction management
under local planning.
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1) Construction planning means organization or orientation
for organization of spaces of regions, urban centers and residential areas and
systems of technical and social infrastructure works, creation of living
environments suitable to inhabitants in these regions and areas, ensuring a
harmonious combination between national interests and community interests and
achievement of socio-economic development, defense, security and environmental
protection objectives.
2) Urban area means a densely populated area which plays the
role of promoting socio-economic development of a region, has appropriate urban
infrastructure works and an urban population of at least 4,000 (or 2,800 for
mountainous areas), of whom non-agricultural laborers account for at least 65%.
Urban areas include cities, provincial towns and district townships. An urban
area consists of different functional zones.
3) Urban center means an area where one or several
functional zones of an urban area are built and which is delimited by natural
or artificial boundaries or urban trunk roads. An urban center consists of
residential units, service works for the urban center itself and possibly
common service works for the whole urban area or region.
4) Residential unit means a functional zone consisting of
groups of residential houses; service works of the residential-unit level, such
as preschools. primary schools and lower secondary schools; healthcare
stations, markets, sport and physical training centers, places for cultural
activities and other service centers of the residential-unit level in service
of daily-life needs of the resident community in the residential unit; flower
gardens and playgrounds within the residential unit; land areas for internal
roads (including sub-zone roads and roads to groups of residential houses) and
parking lots for the residential unit. A service work of the residential-unit
level (level I), flower garden or playground in a residential unit has a
service radius of ≤ 500 m. The maximum population and minimum population of a
residential unit are 20,000 and 4,000 respectively (or 2,800 for mountainous
areas). Urban trunk roads must not intersect residential units. Ward-level
administrative centers shall be located depending on the size and management
requirements. Land areas of ward-level administrative centers are included in
those of residential units. Depending on planning solutions, some works outside
above functional zones of residential units may be interposed, but land areas
for building these works do not belong to those of residential units.
5) Group of residential houses is delimited by roads of
sub-zone or higher grade (see Table 4.4).
- A group of apartment buildings consists of land areas
occupied by apartment buildings themselves, internal roads, yards and
playgrounds for the group of residential houses, internal parking lots and
yards and gardens within the group of residential houses.
- A group of adjoining or separate residential houses
consists of areas of land lots for building residential houses of households
(residential land areas), roads for the group of residential houses (common
roads to land plots of households), flower gardens and internal playgrounds of
the group of residential houses.
- In internal playgrounds it is allowed to install works for
community cultural activities and of a size suitable to the community’s needs.
6) Residential land means a land area occupied by apartment
buildings (within a land lot reserved for apartment buildings) or a land area
within premises of adjoining land lots and separate residential houses
(including land areas occupied by adjoining residential houses and separate
residential houses, and yards, gardens and private accesses to these adjoining
or separate residential houses, excluding common roads).
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8) Urban land:
- Urban land means land in inner cities, inner provincial
towns and district townships.
- Suburban land already planned and approved by competent
state agencies for urban development shall be managed like urban land.
9) Residential quarter means an area for urban construction
with the main function of serving residential and daily-life needs of urban inhabitants,
regardless of its sizes.
10) Strategic structure of urban development means the
organizational structure of urban spaces to realize the urban development strategy.
Spatial structure means a materialized form of relationships between components
of urban areas.
11) Urban technical infrastructure includes:
- Traffic system;
- Energy supply system;
- Public lighting system;
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- Waste management and environmental sanitation system;
- Cemetery and graveyard system;
- Other technical infrastructure works.
12) Urban social infrastructure include:
- Residential houses;
- Public and service works for healthcare, culture,
education, sports, physical training, commerce and other urban service works;
- Public squares, parks, greeneries, water surface areas;
- Urban administrative offices;
- Other social infrastructure works.
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14) Building density:
a/ Net building density means the ratio of land areas
occupied by architectures and construction projects on a land lot to the total
area of this land lot (excluding land areas occupied by such works as landscape
decorations, swimming pools, outdoor sport fields and courts (except for tennis
courts and sport fields which are firmly built and occupy spaces on the ground
surface), decoration tanks, etc.
b/ Gross building density (brutalism) of an urban area means
the ratio of land areas occupied by architectures on a land lot to the total
area of this land lot (the total area of the land lot covers also yards, roads,
greeneries, open spaces and areas where no works are built in this land lot).
15) Red line means a boundary segregating the part of a land
lot for work construction from that reserved for roads or technical
infrastructure works.
16) Building line means a line delimiting an area in a land
plot on which houses and works are allowed to be built.
17) Underground building line means a line delimiting an
area in which underground houses and works (excluding underground technical
infrastructure) are allowed to be built.
18) Set-back means the distance from the red line to the
building line.
19) Controlled construction level means a mandatory minimum
construction level selected to conform to the regulation on technical
preparation planning.
20) Environmentally safe distance means a safe distance from
a water discharge source (a pumping station, wastewater treating facility,
bio-reservoir, complex for treatment of solid wastes, solid waste landfill,
cemetery, crematory, industrial production or cottage industry and handicraft
establishment) to social infrastructure works, for protection of water sources.
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1.3. Work protection zones and
sanitation and safety clearances
Construction or construction management planning must comply
with specialized regulations on protection zones and sanitation and safety
clearances, including:
1) Protection zones of technical infrastructure works:
- Dikes, irrigation works;
- Road, railway, waterway and airway traffic or navigation
works;
- Information and communication systems;
- High-voltage power grids;
- Fuel gas and oil pipelines;
- Water supply and drainage works;
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2) Protection zones of historical and cultural relics,
scenic places and beauty spots, and conservation zones.
3) Protection zones of security and defense works.
4) Segregation zones between civil areas and:
- Industrial or cottage industry establishments;
- Warehouses;
- Pumping stations and wastewater treatment facilities:
- Solid waste disposal areas and cemeteries;
- Positions of blasting for coal mining, earth or stone
exploitation.
5) Safety distances for fire prevention between different
works:
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- Between industrial works and other works;
- Between fuel storages, petrol and oil depots, fuel gas
distribution stations and other works.
6) Flight safety distances.
7) Safety distances for areas vulnerable to natural
disasters or geological catastrophes (slumps, fractures, landslides, flash
floods), radioactivity.
1.4. Requirements on construction
planning work
1.4.1. General requirements
Construction planning must satisfy the following
requirements:
1) Complying with current legal documents on construction
planning.
2) Complying with relevant legal provisions on protection of
technical works, defense works, historical or cultural relics, and
environmental protection.
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- Natural conditions: terrain, geology, hydrogeology, soil,
water sources, environment, climate, natural resources and landscape;
- Economic situation and development potential;
- Social conditions: population, customs, traditions,
beliefs, etc.
4) Ensuring that the new construction or renovation of urban
areas, residential areas, industrial parks achieves desired efficiency in the
following aspects:
- Assurance of safety, sanitation and conveniences for
people working and residing in areas or works under construction or renovation.
- Protection of interests of the entire society, including:
+ Protection of living environment, landscapes and
historical and cultural relics: preservation and development of national
cultural identity;
+ Compatibility with the economic, political and social
development trends;
+ Protection of construction works and assets therein;
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+ Assurance of sustainable development.
- Rational use of investment capital, land and natural
resources;
- Sustainable use of environmental resources.
14.2. Requirements on regional construction planning
1) Construction planning for regions with general or
specialized functions must incorporate objectives and tasks approved by
competent authorities.
2) Depending on characteristics and size of each region, a
regional construction planning must satisfy the following requirements:
- Determining development vision and perspective of the
whole region;
- Setting strategic development objectives for the whole
region;
- Orienting roles and functions of driving-force sub-regions
and nucleus urban areas of major sub-regions and rural sub-regions in the
region;
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- Orientating sub-regions in which development of major
functions, such as industrial and agricultural production, forestry, fisheries
and tourism, are boosted;
- Zoning off areas for protection of natural heritages and
landscapes, historical and cultural relics; and construction-free areas;
- Forecasting needs to use infrastructure in the region;
orientation of a strategy for provision of technical infrastructure works in
the region, identification of key works, networks, locations and sizes of technical
infrastructure works bearing regional or inter-regional characteristics;
- Proposing strategic projects and resources for
implementation;
- Giving strategic environmental assessment and proposing
environmental control measures.
1.4.3. Requirements on general urban construction planning
Depending on characteristics and size of each urban area, a
general urban construction planning must satisfy the following requirements:
- Determining an urban development perspective (vision);
- Elaborating major urban development strategies;
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- Forecasting population, labor demand and urban
construction land demand;
- Proposing land use and infrastructure provision norms
suitable to development objectives for different stages of urban development;
- Proposing land use planning solutions which optimize the
possibility to use land for mixed purposes, ensuring flexibility and dynamism
in implementing urban development strategies;
- Orienting a framework system of technical infrastructure
works in service of urban development:
+ Generally assessing and selecting urban construction land,
ensuring optimal achievement of urban development objectives;
+ Determining controlled construction level in necessary
areas and urban trunk roads, ensuring the effective control of and links
between functional zones in the urban area;
+ Determining a framework traffic network, consisting of
outbound roads, major urban trunk roads, key traffic works (airports, seaports,
river ports, traffic hubs, irrigation works, etc.); organizing mass transit for
urban areas of grade III or higher grades; indicating red lines of urban trunk
roads;
+ Selecting sources, determining sizes, locations and
capacity of key works; major transmission and distribution networks of water
and power supply systems; networks of water drainage sewers; wastewater or
solid waste treatment facilities; cemeteries and other major technical
infrastructure works of the urban area;
+ Arranging a system of technical tunnels suitable to the
framework technical infrastructure system.
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- Urban designing: proposing a general framework urban
design, consisting of pivotal and key spaces and typical spaces in the urban
area.
- Giving strategic environmental assessment and proposing
environmental control measures.
1.4.4. Requirements on detailed urban construction plans of
1/2,000 scale
In a detailed urban construction plan of 1/2,000 scale, it
is necessary to study and propose orienting and structural planning solutions
for the whole area subject to the study, ensuring its compatibility with the
general development strategy and structure of the whole urban area, and
consistency in terms of spatial organization, technical and social
infrastructure and organization between units at the center of areas subject to
study and neighboring areas, ensuring the harmony, effectiveness and
sustainability, and at the same time flexibly meeting social development
investment needs.
A detailed urban construction plan of 1/2,000 scale must
achieve approved specific objectives and tasks and concurrently satisfy the
following requirements:
- Proposing organizational structures of urban spaces;
- Proposing land use planning solutions which satisfy
requirements on use of land for mixed purposes, ensuring flexibility and
dynamism for urban development needs, including: works with one or several
functions allowed to be constructed in each land lot, proposing controlled
limits (when necessary) of construction density and work height to suit the
planning space structure and general development strategies of the whole urban
area;
- Determining specifications and arrangement of major social
infrastructure works of the designed area or each typical zone in the designed
area to meet development management needs;
- Determining principal econo-technical norms of technical
infrastructure works of the designed area or each typical zone in the designed
area to meet development management needs;
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+ Road network: Solutions to planning outbound roads related
to the designed area, urban traffic (to section boundaries); cross-sections,
red lines; requirements on planning on car terminals and parking lots and
systems of underground works and technical tunnels, etc;
+ Water supply system: Forecast of water demand and supply
sources; locations and sizes of water plants and pumping stations; reservoirs;
other major water supply works and network of water pipelines to section
boundaries;
+ Power supply: Forecast of power demand and supply sources;
locations and sizes of power distribution stations; network of medium-voltage
transmission lines and urban lighting, etc;
+ Water drainage system: Water drainage network; locations
and sizes of wastewater or solid waste treatment facilities, etc;
- Proposing strategic projects and resources for
implementation;
- Urban design: Proposing urban design solutions which meet
requirements on implementation control under the design’s planning solutions;
- Giving strategic environmental assessment and proposing
environmental protection measures.
1.4.5. Requirements on detailed urban construction plans of
1/500 scale
In a detailed urban construction plan of 1/500 scale, it is
necessary to study and propose planning solutions in service of specific
investment needs or policies, ensuring its compatibility with the general
development strategy and structure of the whole urban area, consistency in
terms of spatial organization and technical infrastructure between the planned
area and neighboring areas, and the harmony, effectiveness and sustainability.
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- Proposing solutions to organizing spaces of architecture
and landscape planning on the ground and underground construction spaces;
- Identifying characteristics, functions and major
econo-technical norms of land use, social and technical infrastructure of the
designed area;
- Proposing contents of land use planning, including:
determining land area, building density and work height for each land lot;
determining sizes of underground works;
- Proposing solutions to planning a system of urban
technical infrastructure works, including:
+ Road network: Solutions to planning outbound roads related
to the designed area, urban traffic (to each work); cross-sections, red lines
and building lines of road sections (to internal roads); locations and sizes of
car terminals and parking lots and systems of underground works and technical
tunnels, etc;
+ Water supply system: Water demand and supply sources;
locations and sizes of water plants and pumping stations; reservoirs; a network
of water pipelines to each work and detailed technical parameters, etc;
+ Power supply system: Power demand and supply sources; locations
and sizes of power distribution stations; network of medium- and low-voltage
transmission lines and urban lighting, etc;
+ Water drainage system: Water drainage network; locations
and sizes of wastewater or solid waste treatment facilities, etc;
- Urban design: Proposing urban design solutions which meet
requirements on implementation control under the design’s planning solutions;
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1.4.6. Requirements on rural residential area construction
planning
Subject to rural residential area construction planning are
commune centers or rural residential areas (collectively referred to as
villages). A rural residential area construction planning must be based on
specific objectives and tasks and elaborated in the following order:
- Orientating the planning of construction of a network of
rural residential areas within administrative boundaries of the whole commune,
or planning of construction of a network of rural residential areas within the
scope of close relationships with the planned area, which shall serve as a
basis for forecasting rational development scale and mode of each residential
area at each planning stage.
- Planning construction of a rural population area, meeting
the following requirements:
+ Identifying relationships between residential areas within
the planning network and neighboring areas in all aspects (socio-economic
conditions, technical and social infrastructure, etc);
+ Identifying potential, advantages and development
prerequisites;
+ Forecasting population and needs for construction of
works;
+ Planning the general land use plan, layout of such
construction works as residential houses, service works, areas for conservation
and embellishment of relics and landscapes, and construction-free areas;
+ Planning the development of technical infrastructure
works, determining red lines and building lines;
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1.4.7. Requirements on population forecasts in construction
planning
Population forecasts should be studied with scientific
methods and suitable to the condition of input database of plans, ensuring that
forecast results are suitable to urban development needs and capacity and serve
as a basis for forecasting demands for technical and social infrastructure in
the region, urban area or each functional zone, and ensuring urban development
efficiency.
Population forecasts must touch upon population sections
identified in compliance with the Residence Law, forecast numbers of permanent
inhabitants, temporary inhabitants and people working but not residing in urban
areas, etc.
Urban construction planning must forecast the average
household size.
Chapter II
SPATIAL PLANNING
2.1. Regional spatial planning
In a regional construction planning, it is necessary to set
forth strategic orientations for development of regional space. Functional
sub-regions that need to be studied include:
1) Urban areas and sub-regions or rural residential areas;
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3) Areas for concentrated agricultural production, forestry
or fisheries;
4) Areas for service centers (at regional, national or
international level):
- Culture and tourism (including scenic places and beauty
spots, relics, nature conservation, ecological environment, etc.);
- Convalescence, entertainment and recreation;
- Healthcare and medical services;
- Training, science and technology;
- Sport training and competition centers.
5) Other special functional sub-regions.
2.2. Spatial organization in a
general urban construction planning
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To be selected for urban construction, a land area must
satisfy the following conditions:
- Being imbued with economic, social, technical
infrastructure and environmental advantages;
- Having favorable natural conditions (topographic,
geological, hydrological and meteorological conditions) for work construction;
not lying in a region vulnerable to collapse, karst, landslide, corrosion,
tremor, etc;
- Being large enough for urban development in a 20-year
period and reservation for the subsequent period;
- Having sufficient conditions for development of an urban
technical infrastructure system;
- Being free from environmental pollution (caused by toxic
chemicals, radioactive substances, noise, infectious epidemics, fire,
explosion, etc.);
- Not lying within a region already zoned off for mining or
natural reserve;
- Not lying within a region in which construction is banned
under the construction law;
- A land area selected for construction of underground works
must have technical conditions compatible with regulations on construction of
underground works and conditions for rational connection with surface works.
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A general urban construction planning must determine urban
spatial development structures in order to realize urban development strategies
(structures of urban development strategies).
Urban spatial development structures must be determined on
the basis of natural frames of urban areas, practical conditions and urban
development potentials; ensure the sustainable, dynamic and effective urban
development, and gear toward strategic urban development objectives with a
vision (perspective) to a desired future urban area.
- Urban spatial development structures must ensure:
+ Urban conformation: Explanation of urban spatial
structures, delimitation of boundaries for development of urban areas and
centers, trunk roads, construction density, etc;
+ Urban economy: Forecast of population size and density,
ensuring effective urban development; structure of branches and occupations;
identification of interrelations between and principles for linking functional
regions in the same plane;
+ Urban design: Setting forth of strategies for development
control and guidance related to urban design, such as major directions,
sections and eye-catching landscapes, a system of open spaces in urban areas,
architectural style, urban landscapes, etc;
+ Urban ecosystem: Setting forth of development strategies
appropriate to the urban ecosystem (terrain, sunlight, wind, natural energy,
flora and fauna, etc.);
+ Urban sociology: Setting forth of urban development
strategies toward optimal social equality in planning on spatial use, ensuring
living conditions for people of different strata in society (including
tourists, unofficial population sections, etc.); solutions to rich-poor gap
problems; and solutions to other social problems;
+ Urban culture: Setting forth of strategies for promotion
of historical and cultural values in future urban areas, creation of spaces
necessary for traditional cultural and belief activities:
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+ Regarding the land use planning, proposals must be
suitable to the urban spatial development structure for each specific region
and identify;
+ Areas reserved for independent functional zones;
+ Areas for mixed use purposes in which different functional
works may be built, specifying type of functional works allowed to be built in
each zone.
Depending on the location and characteristics of each
planned zone, boundaries between different land use planning zones in an urban
area might be inaccurately delimited but must ensure principles for connection
in a common spatial structure. Depending on development strategies and
potentials, it might be necessary to determine size limits of a number of
functional works in urban areas.
2.3. Detailed urban construction
plannings
Detailed plannings of 1/2,000 scale:
A detailed planning of 1/2,000 scale means a structural
planning that identifies in a more specific manner an urban development
structure under development strategies related to designed areas in the general
strategy of the entire urban area integrated with the traffic structure and
technical infrastructure framework. The traffic structure must clarify grade
and level structures of the system, while the framework of other technical
infrastructure works must ensure the capability to supply infrastructures for
component projects (proposals must be detailed to sectional roads).
Norms on provision of urban social infrastructure services
and arrangement of these works shall be determined to serve as a basis for
controlling and linking component investment projects. In a detailed plan of
1/2,000 scale, landmarks and boundaries of each land lot as well as roads are
not yet determined.
Detailed plannings of 1/500 scale:
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2.3.1. Urban functional zones include:
- Zones for construction of works for mixed use purposes
(residential houses, administrative works, service works, non-hazardous
production establishments, etc.);
- Zones for construction of residential houses;
- Zones for construction of urban service works:
+ Administrative works of all levels of the urban area;
+ Urban service works of all levels for general education,
job training, health care, culture, sports and physical training, commerce,
tourism, finance, banking, insurance, post, telecommunications, informatics,
office activities, etc;
- Zones for construction of urban greeneries, parks and
flower gardens;
- Zones for construction of administrative works beyond
urban administrative management levels;
- Zones for diplomatic functions;
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- Zones for non-agricultural production: industrial
production, warehouses, storing yards (for cargoes), animal slaughterhouses,
etc;
- Zones for construction of religious and belief works;
- Zones for construction of traffic works, including inner
city roads and outbound roads (the network of roads, railway stations, car
terminals, waterway ports, airports, etc.);
- Zones for construction of major urban technical
infrastructure works and environmental safety distances between them
(cemeteries, power supply works, water supply and drainage works, wastewater
and garbage treatment facilities, fire prevention and fighting works, etc.);
- Special zones (military zones, security zones, etc.);
- Special-use greeneries: nurseries, trees for research,
separation tree lines, etc;
- Other urban functional zones.
2.3.2. Requirements for planning on urban functional zones
- A planning on urban functional zones must ensure the
systematic arrangement and concurrently satisfy the requirement on mixed
arrangement of different functional works in each specific zone in a rational
manner in order to ensure efficiency, flexibility and sustainability of each
urban zone and compliance with the general development strategy structure of
the entire area.
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- Urban functional sub-zones must fully exploit natural
terrain, practical socio-economic conditions and existing construction works to
arrange urban spaces and technical systems with a high aesthetical effect as
well as high investment and use efficiency;
- Surface and underground urban spaces must be rationally
linked;
- Planning on the use of land in functional zones must be
made on the basis of specific conditions of each region; planning objectives;
natural conditions and practical conditions; land area reserved for
development, with a view to ensuring favorable living and working environments
for inhabitants, raising the land use efficiency and gearing toward sustainable
development;
- Apart from needs of the planned area itself, sizes of
urban functional zones must take into account their capability to meet needs of
passing guests and inhabitants of neighboring areas as well as the entire urban
area and be suitable to characteristics of the planned area already determined
in the general strategic structure of the entire urban area.
2.4. Planning on residential units
2.4.1. Requirements on residential unit planning:
A planning on residential units must ensure the provision of
residential houses and essential daily-life services (preschool education,
lower secondary education, culture and information, marketplaces, commercial
services, sports and physical training, spaces for strolls and leisure, etc.)
for inhabitants within a radius of 500 m or less in order to promote the use of
mass transit vehicles and form the walking habit.
A planning on construction of new residential units must
ensure that these residential units are not divided by urban trunk roads or
highways.
The land norm of average residential units of an entire
urban area shall be selected on the basis of forecast demands for various types
of urban residence of different entities residing in the urban area and spatial
organization solutions according to strategic structures of urban development.
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Detailed plans of 1/500 scale must identify locations and
sizes of functional zones. Urban-service public works must comply with
regulations in Table 2.1 and population in the designed area, taking into
account demands of adjacent areas.
Population must be forecast to suit selected house models as
well as house and residential land criteria. Or, vice versa, with certain land
funds and population settlement objectives, suitable planning solutions as well
as house models and criteria should be selected.
In groups of residential houses, there must be flower
gardens and playgrounds within a service radius (calculated according to the
nearest actual approach line) not exceeding 300m.
For groups of apartment buildings, residential land area is
the land-occupying area of the building blocks with the maximum building
density specified in Table 2.7a (permitted maximum net building density of a
group of apartment buildings according to land lot area and works’ height).
For groups of adjoining residential houses or separate
houses, residential land area is the area of the land lot for construction of
households’ houses.
In residential units having houses of different types,
residential land occupancy must be calculated for each type of separate houses;
occupancy for land of other types is the average occupancy rate.
Regulations on the use of residential unit-based land:
- The minimum area of residential unit-based land is
8m2/person. The average occupancy of residential unit-based land for the whole
urban center must not exceed 50m2/person. In special cases (tourist urban
centers, mountainous urban centers, urban centers with special climatic or
natural conditions, etc.), bases for selection of suitable occupancy rates are
required;
- Public-use greenery land area within a residential unit
must be at least 2m2/person, of which greenery land within a group of
residential houses must be at least 1m2/person;
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Land for combined use (including residential land and
production/business land) will be converted into land of corresponding categories
according to the ratio of floor area used for each function.
For residential quarters for low-income earners or social
houses, land occupancy under planning for a residential unit must represent at
least 70% of the above occupancy rate and, at the same time, the minimum cross
section of roads (within a group of residential houses) must be ≥ 4 m.
For quarters for special households (single-person
households, dormitories, etc.), land occupancy should be adjusted
appropriately.
2.5. Planning on the system of urban
service works
2.5.1. Requirements on structure of the system of urban
service works
1) Urban service works within a residential unit (school,
market, etc.) must have a service radius not exceeding 500m. Particularly for
areas with complicated topographical conditions, the service radius must not
exceed 1.0km.
2) Other service works in urban centers must be planned to
suit urban structure and ensure the exploitation of their positions and links
with other functional zones in urban areas.
2.5.2. Requirements on planning on the system of urban
service works:
- Urban-construction general plannings as well as detailed
plannings of 1/2,000 scale must identify the structure of planning on essential
urban services in association with urban spatial development structures,
including criteria for the planning on the system of service works according to
the requirements in Table 2.1, taking into account demands of adjacent areas
and nonresidents and development requirements in each period.
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Type of works
Management grade
Minimum occupancy rate for works
use
Minimum occupancy rate for land
use
Unit of calculation
Rate
Unit of calculation
...
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1. Education
a/ Preschool
Residential unit
Places/1,000 people
50
m2/place
15
b/ Primary school
Residential unit
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65
m2/place
15
c/ Lower secondary school
Residential unit
Places/1,000 people
55
m2/place
15
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Urban area
Places/1,000 people
40
m2/place
15
2. Healthcare
a/ Health station
Residential unit
Station/1,000 people
...
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m2/station
500
b/ General clinic
Urban area
Work/urban center
1
m2/station
3,000
c/ General hospital
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Bed/1,000 people
4
m2/hospital bed
100
d/ Maternity hospital
Urban area
Bed/1,000 people
0.5
m2/hospital bed
...
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3. Physical training and sports
a/ Exercise ground
Residential unit
m2/person
ha/work
0.5
0.3
...
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Urban area
m2/person
ha/work
0.6
1.0
c/ Stadium
Urban area
...
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m2/person
ha/work
0.8
2.5
d/ Physical training and sports center
Urban area
...
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ha/work
0.8
3.0
4. Culture
a/ Library
Urban area
ha/work
...
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b/ Museum
Urban area
ha/work
1.0
c/ Exhibition center
Urban area
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ha/work
1.0
d/ Theater
Urban area
Places/1,000 people
5
ha/work
1.0
e/ Cultural palace
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Places/1,000 people
8
ha/work
0.5
g/ Circus
Urban area
Places/1,000 people
3
ha/work
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h/ Children’s palace
Urban area
Places/1,000 people
2
ha/work
1.0
5. Market
Residential unit
Work/residential unit
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ha/work
0.2
Urban area
0.8
- In detailed plannings of 1/500 scale, urban service works
must ensure harmonious arrangement based on service users and specialties;
convenient service and economical use of land and construction investment
funds; and urban beauty. Service works must be located suitably to their
functions:
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+ Cultural, trade and service works must be located on trunk
roads according to service grades;
+ Accesses to service works reserved for the elderly,
children and the disabled must not cross urban trunk roads if there are no
underpasses or overpasses;
+ Underground urban-service works must be planned to ensure
rational and convenient connection between ground-surface and underground
works;
+ Each area with population of 20,000 people or more must
have at least one upper secondary school
2.6. Urban greenery planning
2.6.1. Urban greenery system:
Urban greenery is divided into three major groups:
1) Public-use greenery (squares, parks, flower gardens,
stroll gardens, etc., including water surface area in their premises and area
of riverside landscape greenery planned for urban inhabitants’ access and use
for physical training, rest, recreation, relax, etc.). For area of water surface
without regular water, there must be planning solutions to ensure good
appearance of the environment when there is no water.
2) Street greenery (green trees, lawns planted within the
red line): All roads of sub-regional or higher grade must have street
greeneries.
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2.6.2. Requirements on urban greenery system planning
- Urban green spaces must be connected together by streets
planted with trees and tree-strips to form a continuous green system. Lakeside
land, land along canals and all spaces must be used as much as possible for
greenery.
- Tree planting must not affect traffic safety, damage house
foundations or underground works, or cause danger (not to plant trees easy to
break or fall) or affect environmental sanitation (not to plant trees
discharging toxic and harmful substances or insect attractants, etc.).
2.6.3. Regulations on the area of public-use greenery land
in urban areas
- Public-use greenery land outside residential units in
urban areas embraces parks, flower gardens serving one or more residential
unit, the whole urban area or region (including theme parks); water surface
area within premises of parks and flower gardens, of which water surface area
converted into greenery land area per person must not exceed 50% of total area
of public-use greenery land outside residential unit, excluding special-purpose
greeneries.
- For mountainous and island urban areas, public greenery
land area may be smaller but must not be less than 70% of that specified in
Table 2.2.
Table 2.2: Public-use greenery land occupancy outside
residential units in urban areas
Urban-area grade
Occupancy (m2/person)
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≥7
I and II
≥6
III and IV
≥5
V
≥4
- Public-use greenery land within a residential unit
embraces playgrounds, flower gardens and sports grounds for daily-life
activities, including works serving the whole residential unit and works
serving groups of residential houses. A newly built unit must have at least one
flower garden (which may be combined with an outdoor sports ground and place
for community activities) of at least 5,000 m2 serving the whole residential
unit.
2.7. Planning on industrial parks
and warehouses
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1) Planning on the construction, renovation and expansion of
industrial parks and clusters must meet the following requirements:
- Environmental protection:
+ To ensure the observance of the law on environmental
protection.
+ Locations of industrial enterprises must ensure the
minimum adverse impacts on the urban environment, and comply with Points 2 and
3 of Section 2.7.1.
- Convenient and rational production organization.
- Works location suitably to topographical, geological and
landscape conditions, in harmony with other urban architectural complexes,
satisfying requirements on fire and explosion prevention and fighting.
- Rational arrangement of technical infrastructure and
greenery networks.
- Rational use of land.
2) Locations of industrial enterprises:
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- Enterprises which discharge toxic and harmful substances
or are prone to environmental pollution must be located at the end of the major
wind direction, or at the end of rivers or streams against residential areas.
- Depending on the extent of adverse impacts on the
environment and the volume of to-and-fro transport:
+ To locate outside urban areas enterprises which use strong
radioactive substances or radioactive substances prone to fire or explosion;
and large-sized industrial-scrap landfills or those containing dangerous
scraps.
+ To locate far from civil areas grade-I and grade-II
hazardous enterprises (according to classification of hazard grades in Appendix
6).
+ To locate right in residential areas enterprises whose
wastes, noises and vibrators satisfy permitted standards for residential areas
and which have strictly controlled environmental criteria.
3) Sanitation isolation strips:
- Depending on the extent of harms to the environment, there
must be sanitation isolation strips between industrial works and residential
areas.
- The width of an isolation strip must ensure the minimum
distance according to Vietnam environmental standard.
- In a sanitation isolation strip, at least 50% of land area
must be planted with green trees and not more than 40% of land area may be used
for parking lots, pumping stations, wastewater treatment facilities and
solid-waste transit facilities.
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- Industrial waste and scrap landfills must be fenced and
must neither adversely affect sanitation conditions of surrounding enterprises
nor contaminate the environment.
- For sites of dangerous scraps (which are prone to fire,
explosion or epidemics, etc.), measures to handle toxic and hazardous
substances and ensure isolation space are required.
2.7.2. Warehouse zones
1) A planning on urban warehouse zones must meet the
following requirements:
- Rational organization of the network of warehouses of
three types:
+ Retail warehouses for daily-life needs may be located
within urban centers;
+ Distribution and wholesale warehouses must be located in
vicinities and outside urban centers;
+ National reserve warehouses, transit warehouses and
warehouses for storing toxic, hazardous and fire- or explosion-prone substances
must be located in separate zones in suburbs.
- Locations of warehouse zones must:
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+ Be convenient for communication and transportation;
+ Ensure sanitation isolation distances from civil areas.
2) Within warehouse zones, warehouses must be grouped based
on classification of goods in warehouses; there must be convenient roads,
parking lots and warehouse equipment.
2.7.3. Regulations on the use of land for industrial and
small-cottage industry activities and warehouses
- Land for construction of industrial or small-cottage
industry zones must be planned to suit industrial development potential, socio-economic
development master plan and relevant development strategies of each urban area.
- Land for warehouses serving urban areas: Non-hazardous
warehouse zones for urban areas may be located within civil zones. Warehouse
zones which are likely to discharge hazardous wastes must be located in
industrial zones or clusters or independently, ensuring isolation and waste
treatment conditions to meet environmental management requirements.
- The planning on the use of land in industrial or
small-cottage industry zones must satisfy the requirements on functions of
industrial zones. The ratios of land of various categories in an industrial
zone depend on the location of the industrial zone, the area module of land
lots for construction of factories or warehouses, which must comply with
stipulations in Table 2.3.
Table 2.3: Ratios of land of various categories in
industrial or small-cottage industry zones
Land category
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Factories and warehouses
≥ 55
Technical zones
≥ 1
Administrative and service works
≥ 1
Transport
≥ 8
Greenery
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- Building density:
+ The maximum net building density for land for construction
of factories and warehouses is specified in Table 2.4.
Table 2.4: Maximum net building density for land for
construction of factories and warehouses
Heights of ground-surface work (m)
Maximum building density (%)
according to land lot area
≤ 5,000 m2
10,000 m2
≥ 20,000 m2
≤ 10
...
...
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70
60
13
70
65
55
16
70
60
...
...
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19
70
56
48
22
70
52
45
25
...
...
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49
43
28
70
47
41
31
70
45
...
...
...
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34
70
43
37
37
70
41
36
40
...
...
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40
35
>40
70
40
35
+ The maximum gross building density in the whole industrial
or small-cottage industry zone is 50%.
2.7.4. Planning on fire prevention and fighting in urban
areas
1) Network of fire stations: In an urban territory, there
must be a network of fire stations, including central stations and regional
stations within the maximum service radius of:
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- ≤ 3km, for regional stations.
2) The location of a fire station must ensure safe and fast
entry and exit of fire-engines and fire-fighting means, and satisfy the
following conditions:
- Being on a plain topographical location and covering an
area wide enough for construction of works and grounds according to
regulations.
- Ensuring convenient traffic.
- Not being adjacent to works where many people and vehicles
enter and exit.
3) Fire-fighting serving roads
a/ Arrangement of fire-fighting roads:
- For civil areas: The distance between roads, with a width
of 4m or more for vehicles which cross or intercalate houses, must not exceed
180m.
- For industrial works: There must be roads for fire engines
which run along one side of houses, if houses’ width is less than 18m, or along
both sides of houses, if houses’ width is 18m or more.
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c/ At rivers or ponds, there must be U-turn grounds for
vehicles meeting the following requirements:
- Fire-fighting road dimension: Roads for fire engines must
be at least 3.5m in width and 4.25m in headroom (height).
- U-turn grounds for vehicles: dead-end road for a vehicle
lane must not exceed 150m in length; at the end of a dead-end road, there must
be a U-turn ground with the minimum on-site dimension of:
+ Equilateral triangle, 7m in each side;
+ Square, 12m x 12m in size;
+ Circle, of 10m in diameter.
2.8. Urban design
2.8.1. Requirements on urban design under general
urban-construction plannings
Urban design under general urban-construction plannings must
meet the following requirements:
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- Specifying maximum and minimum heights, or not restricting
heights of construction works within functional zones in urban areas;
- Setting requirements on urban architectural management
under the general construction planning for the management of the general
landscape architecture of the whole urban area according to the above
requirements.
2.8.2. Requirements on urban design under detailed
urban-construction plannings
1) Urban design under detailed urban-construction plannings
of 1/2,000 scale must meet the following requirements:
- Identifying typical works in the space of the planned area
according to major directions and visions;
- Setting (or not setting) maximum and minimum control
limits and principles on the height interrelation of adjacent works for each
functional zone and the whole area;
- Specifying the building set-back on major streets and
crossroads;
- Setting principles on principal configuration, color,
light and architectural appearances of architectures, greeneries, water surface
and squares;
- Identifying principles of connecting space of the designed
area with adjacent space outside the designed area;
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- Specifying land use limits such as building density,
building stories (depending on spatial control requirements and planning
organization intentions, specifying accurate building stories and average
stories, or only maximum and minimum stories, and the interrelation between the
heights of works in the planned area, or not restricting construction heights).
2) Urban design under detailed urban-construction plannings
of 1/500 scale must meet the following requirements:
- Identifying typical works in the planned area’s space
according to main directions and visions;
- Specifying works’ construction heights and first-floor
heights for each land lot;
- Identifying the building set-back on each street and at
crossroads;
- Specifying configuration and architectural appearances of
works; color and other requirements on works’ building materials;
- Specifying the arrangement of urban public-utility works,
monuments, grandiose paintings, advertisement boards, instruction boards, signboards,
greeneries, garden grounds, water surface, squares, fences, passageways for the
disabled, pavements, and architecture covering urban technical infrastructure
works;
- Specifying pavement level and work construction foundation
level;
- Setting requirements on urban architecture management
under detailed construction plans of 1/500 scale for management of landscape
architecture of each work, street block, street line and region.
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Works’ planning disposition should be studied on the basis
of analyzing micro-climatic conditions of the designed land zone to select
optimal solutions to limit sunlight and wind directions’ adverse impacts on
works’ micro-climatic conditions, minimizing energy use for the purpose of
cooling or warming works.
2.8.4. Minimum distances between terraces
Minimum distances between separate construction works or
adjoining houses (collectively referred to as terraces) in new construction
planning areas are prescribed as follows:
- The distance between the long sides of two terraces <
46m high must be ≥ 1/2 of the work’s height (≥ 1/2h) and must not be < 7m.
For works of ≥ 46m high, this distance must be ≥ 25m;
- The distance between the two gables of two terraces <
46m high must be ≥ 1/3 of the work’s height (≥ 1/3h) and must not be < 4m.
For works ≥ 46m high, this distance must be ≥ 15m;
- For terraces including works’ bases and top towers,
regulations on the minimum distance to the opposite terrace apply separately to
works’ bases and top towers depending on corresponding building stories,
counting from the ground surface (pavement level);
- If in a terrace, the length of the long side and that of
the gable is equal, the front adjacent to the road which is the largest one
among those adjacent to that land lot is regarded the long side of the house.
2.8.5. Building set-back
Building set-back against the planned road’s building-line
depends on the organization of architectural spatial planning, work height and
building-line width, but the minimum set-back must satisfy the requirements in
Table 2.5.
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Work construction height (m)
Building line
adjacent to the land
lot for work construction (m)
≤ 16
19
22
25
≥28
< 19
0
...
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3
4
6
19 ÷ < 22
0
0
0
3
6
...
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0
0
0
0
6
≥ 25
0
0
0
...
...
...
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6
- For work complexes including works’ bases and top towers,
regulations on building set-back apply separately to works’ bases and top
towers according to corresponding building stories counting from the ground
surface (pavement level).
2.8.6. Permitted maximum net building density
1) Residential houses:
The maximum net building density of a land lot for the
construction of groups of adjoining houses, separate houses and apartment
buildings are specified in Tables 2.6 and 2.7a.
Table 2.6: Maximum net building density of a land lot for
the construction of groups of adjoining houses or separate houses (garden
houses, villas, etc.)
Land lot area (m2/house)
≤ 50
75
...
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200
300
500
≥ 1,000
Maximum building density (%)
100
90
80
70
...
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50
40
Table 2.7a: Maximum net building density of groups of
apartment buildings according to land lot area and work height
Ground-surface work construction
height (m)
Maximum building density (%)
according to land lot area
≤ 3,000 m2
10,000 m2
18,000 m2
...
...
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≤ 16
75
65
63
60
19
75
60
58
...
...
...
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22
75
57
55
52
25
75
53
51
...
...
...
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28
75
50
48
45
31
75
48
46
...
...
...
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34
75
46
44
41
37
75
44
42
...
...
...
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40
75
43
41
38
43
75
42
40
...
...
...
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46
75
41
39
36
>46
75
40
38
...
...
...
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2) Educational, healthcare and cultural works and markets:
The maximum net building density of such public works as
educational, healthcare, cultural and physical training and sport works and
markets in newly built areas is 40%.
3) Other urban service works and works with combined
functions:
The maximum net building density of other urban service
works and works with combined functions which are built on a land lot of e”3,000
m2 should be considered depending on their locations in urban areas and
specific planning solutions for such land lot and be approved by competent authorities.
However, this density must satisfy the requirements on the minimum distance
between terraces (Section 2.8.4) and the building set-back (Section 2.8.5) and
ensure the area of parking lots as prescribed, and comply with the requirements
specified in Table 2.7b.
For other urban service works and works with combined
functions which are built on a land lot of <3,000 m2, after excluding the
land area for the building set-back specified at Section 2.8.5, the building
density of 100% may apply to the remaining land area, ensuring the requirements
on the minimum distance between terraces (Section 2.8.4) and the area of
parking lots as prescribed.
Table 2.7b: Maximum net building density of urban service
houses and houses with combined functions according to land lot area and work
height
Height of ground-surface works (m)
Maximum building density (%)
according to land lot area
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10,000 m2
18,000 m2
≥ 35,000 m2
≤ 16
80
70
68
65
19
...
...
...
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65
63
60
22
80
62
60
57
25
...
...
...
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58
56
53
28
80
55
53
50
31
...
...
...
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53
51
48
34
80
51
49
46
37
...
...
...
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49
47
44
40
80
48
46
43
43
...
...
...
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47
45
42
46
80
46
44
41
>46
...
...
...
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45
43
40
4) For land lots of area ranging between the values
specified in Table 2.6, 2.7a or 2.7b, the maximum net building density is
determined according to the following interpolate formula:
Mi = Ma - (Si - Sa) x (Ma - Mb): (Sb
- Sa)
Of which:
Si: the area of land lot i (m2);
Sa: the area of land lot a (m2), which is equal to the lower
limit area against i in Table 2.6, 2.7a or 2.7b;
Sb: the area of land lot b (m2), which is equal to the upper
limit area against i in Table 2.6, 2.7a or 2.7b;
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Ma: the permitted maximum net building density of the land
lot of an area of a (m2);
Mb: the permitted maximum net building density of the land
lot of an area of b (m2).
If a work complex comprises works of different heights, the
maximum building density applies depending on the average height.
5) For a work complex comprising works’ bases and top
towers, the regulations on the building set-back, the minimum distance to the opposite
terrace and the building density apply separately to works’ bases and top
towers according to corresponding building stories, counting from the ground
surface (pavement level).
Example: On a land lot of 10,000 m2, a work is a complex of
bases 16m high and top towers 46m high. For apartment buildings, the permitted
maximum building density is 65% for bases and 41% for top towers (calculated
based on the plan view of ground-surface works). For other urban service works
and works with combined functions, the permitted maximum building density for
bases and top towers is 70% and 46%, respectively.
2.8.7. Gross building density
- The permitted maximum gross building density of a
residential unit is 60%.
- The maximum gross building density of resorts is 25%.
- The maximum gross building density of public parks is 5%.
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- The maximum gross building density of special-purpose
greeneries (including golf courses) and natural environmental protection
regions is specified depending on their functions and according to relevant
regulations, which, however, must not exceed 5%.
2.8.8. Ratio of land for greeneries in land lots for work
construction
In land lots for work construction, the requirements on the
minimum ratio of land for greeneries specified in Table 2.8 must be satisfied.
Table 2.8: Minimum ratio of land for greeneries in land lots
for work construction
In land lot for work construction
Minimum ratio of land for
greeneries (%)
1. Residential houses:
- Standalone (garden houses, villas)
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- Groups of apartment buildings
20
2. Public houses:
- Kindergartens, schools
30
- Hospitals
30
- Cultural houses
...
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3. Factories:
- Built dispersedly
20
- Built in industrial parks or clusters
20
2.8.9. Dimensions of land lots planned for construction of
residential houses
- The dimension of a land lot planned for construction of
residential houses is specified based on use demands and users, compatible with
spatial organization solutions, and managed according to construction
management regulations applicable to planned areas.
- Land lots for construction of residential houses in new
planned residential areas, if being adjacent to roads with a building line of ≥
20m, must also satisfy the following requirements on minimum dimensions:
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+ The width of the land lot for house construction is ≥ 5m;
+ The depth of the land lot for house construction is ≥ 5m.
- Land lots for construction of residential houses in new
planned residential areas, if being adjacent to roads with a building line of
< 20m, must also satisfy the following requirements on minimum dimensions:
+ The area of the land lot for family house construction is ≥
36m2;
+ The width of the land lot for house construction is ≥ 4m;
+ The depth of the land lot for house construction is ≥ 4m.
- The maximum length of a terrace of adjoining or separate
houses with both sides adjacent to roads of regional or lower grade is 60m.
There must be roads between terraces according to regulations on the road
network planning (Table 4.4), or walkways at least 4m wide for pedestrians.
2.8.10. House parts which may protrude the red line in case
the building line coincides with the red line
These regulations should be applied suitably to specific
spatial organization solutions for each region and manifested in construction
management regulations according to the planning of each region, and comply
with the following regulations:
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- In the space of a height of 3.5m above the pavement, all
parts of a house must not protrude the red line, except the cases below:
+ Vertical rainwater drains on the outer side of the house
may protrude the red line not more than 0.2m and have a good appearance;
+ From the height of 1m or more (from the pavement surface),
sommer, cornice and decorative parts may protrude the red line not more than
0.2m.
- In the space from the height of 3.5m or more (above the
pavement surface), fixtures of a house (overhang, eaves (cheneau), balcony,
cornice, etc., excluding marquee and pavement roof) may protrude the red line
provided that:
+ The protruding extent (from the red line to the outer edge
of the protruding part), depending on the building line’s width, must not
exceed the limit specified in Table 2.9 and must be at least 1.0m smaller than
the pavement width, ensuring the observance of relevant regulations on power
grid safety and construction management;
+ The height and protruding extent of balconies must be
uniform or create a rhythm in the form of architectural works, creating
landscape architectural space in each complex of houses and the whole area;
+ On protruding parts, only balconies may be built, the
partitioning for making loggias or rooms is not permitted.
Table 2.9: Maximum protruding extent of balcony, cornice and
overhang
Building line’s width (m)
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Under 7
0
7÷12
0.9
>12÷15
1.2
>15
1.4
- Underground parts: All underground parts of a house must
not outreach the red line.
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+ Be designed for the whole catena of streets or complex of
houses, ensuring good appearance;
+ Ensure the observance of regulations on fire prevention
and fighting;
+ Be at a height of 3.5m or more above the pavement and
ensure urban beauty;
+ Not outreach the red line;
+ Parts above marquees and pavement roofs must not be used
for any other purpose (balcony, terrace, ground for flowerpots, etc.).
Notes:
1. Marquee is the entrance roof, which is mounted to the
outer wall of a house and protrudes to the house entrance and/or shades part of
the path from the pavement or road to the house.
2. Pavement roof is the roof mounted to the outer wall of a
house and shades a section of the pavement.
2) Unfixed protruding parts:
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- Regulations on house parts which can protrude are
mentioned in Table 2.10.
Table 2.10: House parts which can protrude
Height against the pavement
surface (m)
Parts which can protrude
Maximum protruding extent (m)
Minimum distance from pavement
edge (m)
≥ 2.5
Ledges, decorations
0.2
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≥ 2.5
Moving structure:
Umbrella roof, door
1.0
≥ 3.5
Fixtures (regulations in overall regional architecture
should be studied):
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- Cornice’s balcony
1.0
- Marquee, pavement roof
0.6
2.8.11 House parts which can outreach the building line in case
the building line recedes behind the red line
- No part of a house may outreach the red line.
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+ Perron, motorbike/bicycle trail, threshold, ledge,
overhang, cornice, marquee, house foundation;
+ Particularly, balconies may protrude the building line not
more than 1.4m but may not be partitioned for creating rooms or loggias.
2.8.12. Relations with neighboring works:
Works may not encroach upon the following boundaries:
- No parts of a house, including equipment, pipelines,
underground parts (foundation, pipelines), may outreach the boundary with the
neighboring land lot;
- Rainwater, wastewater of all kinds (including condensed
water from air-conditioners), dust gas, or exhausts may not be discharged to
the neighboring house.
2.8.13. Other technical requirements on construction works:
- The discharging mouth of chimneys or vents must not direct
at streets.
- Air-conditioners, if mounted at the front and close to the
red line, must be at a height of over 2.7m and must not discharge condensed
water directly to the pavement surface or streets.
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- Grounds for hanging the washing may not be arranged at the
front of houses along streets.
- Fences must ensure architecture and good appearance and
must be uniform according to regulations, except in case of security needs or
separation from streets (agencies, schools, transformer stations, etc.).
2.8.14. Entrances, grounds and parking lots of public and
service houses:
For public and service houses where many people gather
(schools, hospitals, theaters, stadiums, etc.):
- Safe and smooth traffic at entrances of works must be
ensured: There must be an area for gathering people and vehicles at entrances
(or parking lots); gates and fences adjacent to the two sides of gates recede
deeply from the land lot’s boundary, creating a place of a depth of at least 4m
and a width at least quadrupling the gate width.
- There must be an adequate area of grounds and yards for
people (including non-residents) to enter, exit, gather and park their vehicles
in a convenient and safe manner, such as:
+ Grounds for pupils to gather, for schools and kindergartens;
+ Waiting grounds for visitors, grounds for parents to come
to pick up their children;
+ Waiting and emergency exit grounds, for performance
houses, clinics, administrative agencies;
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2.8.15. Kiosks, notice and advertisement boards, greeneries
Kiosks, advertisement and information boards, and trees
planted on pavements must:
- Neither block sight nor hide traffic signs and signals;
- Ensure urban beauty.
2.8.16. Filling stations in urban centers
A filling station in an urban center must satisfy the
following requirements:
- It must not affect traffic safety:
+ It must be at least 7m (counting from the outer edge of
the plan view of the filling station) far from the building line (the red
line);
+ For filling stations close to road intersections (counting
to the intersection with roads of regional or higher grade), the distance from
the entrance of a filling station to the nearest red line of the road route
intersecting with the road route crossing the front of the filling station must
be at least 50m;
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+ It must be at least 50m far from the place with obstructed
vision (for example: it must be at least 50m far from the tangent point of the
curve of a road of a curved diameter <50m along the road).
- It must ensure safety in fire prevention and fighting, and
landscape protection:
+ It must be at least 100m from a place where many people
gather (school, market);
+ It must be at least 300m from another filling station;
+ It must be at least 100m from a beauty spot.
2.9. Underground space planning
2.9.1. General requirements on underground-space
construction planning
The planning on construction of urban underground works must
ensure rational, economical and efficient use of land; ensure appropriate,
synchronous and safe connection between underground works themselves and
between underground works and ground-surface works; satisfy requirements on
protection of the environment and ground water sources in close association
with security and defense requirements.
2.9.2. Requirements on planning on the construction of
underground technical infrastructure works
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- These works must be at a depth and have a horizontal
distance which do not affect one another and safety in their management,
exploitation and use and relevant ground-surface works.
- The connection of technical infrastructure works with one
another and with other underground works in urban areas must be convenient and
safe and satisfy technical requirements.
2.9.3. Requirements on planning on construction of urban
underground transport networks
The planning on urban underground transport networks must
ensure systematism, synchronism, interconnection, convenient spatial
connection, safety for transport on the ground and underground public works as
well as adjacent public works on the ground.
2.9.4. Requirements on planning on the construction of
underground public works
- Those works must be compatible with the urban spatial
organization planning and public service systems.
- Those works must ensure convenient and safe spatial connection
with underground transport works, ground-surface public works as well as
underground public works adjacent to and connecting with general underground
technical infrastructure systems in urban centers.
2.9.5. Minimum distances between underground works
Minimum distances between urban underground technical
infrastructure works not within technical tunnels or ditches are specified in
Table 2.11.
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Type of pipeline
Water supply pipeline
Wastewater drainage sewer
Rainwater drainage sewer
Power cable
Communication cable
Water drainage canal and ditch,
tunnel
Horizontal distance
Water supply pipeline
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1.0
0.5
0.5
0.5
1.5
Wastewater drainage sewer
1
0.4
0.4
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0.5
1.0
Rainwater drainage sewer
0.5
0.4
0.4
0.5
0.5
1.0
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0.5
0.5
0.5
0.1
0.5
2.0
Communication cable
0.5
0.5
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0.5
-
1.0
Technical tunnel, ditch
1.5
1.0
1.0
2.0
1
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Vertical distance
Water supply pipeline
-
1.0
0.5
0.5
0.5
Wastewater drainage sewer
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-
0.4
0.5
0.5
Rainwater drainage sewer
0.5
0.4
-
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0.5
Power cable
0.5
0.5
0.5
0.1
0.5
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0.5
0.5
0.5
0.5
-
When daily-life water supply pipelines are placed in
parallel with dirty-water drainage pipelines, the distance between pipelines
must not be shorter than 1.5m; this distance must not be shorter than 3m in
case water-supply pipeline diameter is equal to 200mm; in case water-supply
pipeline diameter is larger than 200mm, pipelines running in parallel with
water supply pipelines must be made of metal.
The distance between water supply pipelines of over 300mm in
diameter and between them and communication cables must not be shorter than 1
m.
- If several water supply pipelines are located in parallel
with one another, the distance between them must not be shorter than 0.7m in
case the pipeline diameter is 300mm; 1m in case the pipeline diameter is 400÷1,000mm;
or 1.5m in case the pipeline diameter is over 1,000mm. The distance between
pipelines with other pressures is subject to similar standards.
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Table 2.12: Minimum distances between urban underground
technical infrastructure systems located within the same tunnels or technical
ditches (m)
Type of pipeline
Water supply pipeline
Wastewater and rainwater drainage
sewer
Power cable
Communication cable
Water supply pipeline
0.8
1.0
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0.5
Wastewater and rainwater drainage sewer
1.0
0.4
0.5
0.5
Power cable
0.5
0.5
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0.5
Communication cable
0.5
0.5
0.5
0.1
- Minimum distances between other underground infrastructure
works comply with regulations on the construction of urban underground works.
2.10. Planning on renovation of old
urban areas
2.10.1. General regulations
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+ Embellishment or dismantlement of existing works for
rebuilding them or building new functional works within existing areas;
+ Areas intercalating construction-free land areas of under
4ha within existing areas.
- Planning on the renovation of old urban areas must:
+ Be compatible with current conditions as well as
construction plannings of adjacent areas and relevant areas in terms of
building density and stories; urban landscape: social infrastructure systems
and other land-use functions;
+ Suit historical and architectural values and the quality
of existing works;
+ Have technical infrastructure systems renovated in a
synchronous manner; the building line of roads within renovated existing groups
of residential houses be ≥ 4m; and dead-end road of one vehicle lane not be
longer than 150m and with U-turn spaces;
+ Satisfy requirements on fire prevention and fighting,
parking lots, other technical infrastructure, environmental sanitation, etc.
2.10.2. Land-use regulations
The planning of old urban areas must give top priority to
public welfare works. Public welfare works such as schools must satisfy
national standards set by the Ministry of Education and Training; public flower
gardens and playgrounds within residential units must ensure the occupancy of e”2m2/person
within the maximum service radius of 500m; markets must satisfy the
requirements in Table 2.1, other works may be intercalated.
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Preschools may be located within works in apartment
buildings, ensuring the area of outdoor playgrounds and the observance of
safety and environment regulations as well as regulations of the Education and
Training Ministry.
Land for greeneries within religious works in renovated
areas will be converted into land for public-use greeneries, provided that the
total area of converted land for public-use greeneries must not exceed 50% of
the total area of land for public-use greeneries.
Existing adjoining houses under renovation must comply with
the following regulations:
In case a land lot is a constituent of the whole street row,
the minimum area of the land lot for construction of adjoining houses is 25m2/house
with the depth and width not smaller than 2.5m; building stories of that house
must comply with general regulations applicable to the whole street row;
For a single land lot, its minimum area for work
construction is 50m2/house with the depth and width not smaller than 5m;
Regarding works’ volume: For single works built on single
land lots of 10m or less in width or depth, the ratio between the work height
and width or the ratio between the work height and depth (against the front)
must not exceed a triple of the dimension of the smaller side of the work,
except for works with special typical characteristics determined under
regulations on urban construction management according to approved detailed
planning;
- Special cases in the course of ground clearance for urban
construction comply with current relevant regulations.
2.10.3. Regulations on service radius
For old areas in urban centers, the service radius of public
works may be increased but not exceeding 100% against that applicable to new
planned areas and must ensure specialized regulations. The reduction of the
scale or quantity of urban service works must comply with regulations on
service radius and land use scale as for new construction plannings, so that
adjacent units, within a service radius doubling the radius under new
construction plannings, can satisfy their demands in terms of public works of
that type.
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2.10.5. Regulations on distances between terraces of
adjoining houses or single works (collectively referred to as terraces):
- For terraces of 16m or more in height: The distance
between them must be equal to 70% of that prescribed for construction works in
new planned areas.
- For terraces of under 16m in height: The distance between
the long sides of two terraces must be at least 4m and the distance between two
gables of two terraces with a common path must be at least 3m (the distance
from the land lot’s boundary to the heart of the common path must be at least
1.5m).
- In case two terraces of different heights belong to two
adjacent land lots of two different owners of land use rights, the minimum
distance from each of those terraces to the boundary between the two land lots
must be at least equal to 50% of the minimum distance between the two terraces
of a height equal to the height of that terrace.
2.10.6. Regulations on permitted maximum net building
density
The maximum net building density for areas planned for
renovation must comply with Section 2.8.6 of this Code. In case of
embellishment not resulting in the increase in building density and stories,
the current building density may be kept unchanged.
The increase in the building density or stories, or the
dismantlement for re-construction must comply with regulations on the maximum
net building density in areas planned for renovation stated at Section 2.8.6 of
this Code.
The maximum net building density of public works such as
educational, healthcare and cultural works and markets in areas planned for
renovation is 60%. In addition, the planning on construction of these works
must comply with specialized regulations.
2.10.7. Other regulations on height, house parts which can
protrude the red line and the building line, relations with neighboring works,
kiosks, advertisement boards, and greeneries are the same as those applicable
to new planned areas.
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Public and service houses (schools, hospitals, theaters,
stadiums, etc.) must:
- Ensure safe and smooth traffic at their entrances; have an
area for gathering people and vehicles in front of the entrances (also referred
to as parking lots or vehicle dispersion areas): Gates and fences adjacent to
the two sides of gates must recede from the land lot’s boundary, creating a
gathering place of a depth of at least 4m and a width at least doubling the
gate width;
- Have an adequate area of grounds and yards for people
(including nonresidents) to come in and out, gather or park their vehicles in a
convenient and safe manner:
+ Grounds for gathering pupils, for schools and
kindergartens;
+ Waiting grounds for visitors and grounds for parents to
come to pick up their children;
+ Waiting and emergency exit grounds, for performance
houses, clinics, administrative agencies;
+ Parking lots for staff, teachers, pupils and visitors.
2.10.9. Filling stations in urban areas must comply with
regulations applicable to newly planned areas in Section 2.8.16.
2.11. Planning on construction of
rural residential areas
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1) Land for the construction and expansion of rural
residential areas must not be within the following areas:
- Areas which are polluted with industrial wastes, or which
are unhygienic, prone to epidemics;
- Areas having bad climate conditions with whirl-wind;
- Areas with to-be-exploited natural resources or within
archaeological sites;
- Areas where construction is banned (protection scope of
technical infrastructure works, protection zones of historical and cultural
relics, scenic places or defense works, etc.);
- Areas frequently flooded (over 3m deep), or affected by
landslides or flash-floods.
2) The use of cultivation soil must be restricted; hill,
mountain or knoll soil or soil with low cultivation productivity should be used
to build and expand rural residential areas.
2.11.2. Construction land occupancy for rural residential
areas must comply with local conditions
Table 2.13: Land occupancy for rural residential areas in
communes
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Land occupancy (m2/person)
Residential land (household residential land lots)
≥ 25
Land for construction of service works
≥ 5
Land for transport and technical infrastructure
≥ 5
Public greeneries
≥ 2
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1) Major functional zones
A commune’s rural residential area embraces the following
principal functional zones:
- Residential zone, including house villages and hamlets and
service works;
- Communal center zone;
- Production and production-serving works;
- Communal social infrastructure works;
- Communal technical infrastructure works.
2) Requirements on functional sub-zones in the planning on
rural residential areas:
- Saving cultivation land (restricting the expansion of
available residential areas on agricultural land);
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- Protecting the living environment;
- Taking advantage of topographical conditions and natural
landscapes to create a beautiful architectural spatial composition imbued with
identity of each region;
- Being compatible with regional characteristics in terms of
geographical position and nature (being in vicinities, deep-lying or remote
areas, long-existing residential areas or new economic zones, etc.); local
economic branches as well as customs, habits and religions;
- Animal breeding, agricultural production and small-cottage
industry should be planned to satisfy the requirements on sanitation isolation
distance, prevention and control of the spread and outbreak of epidemics.
2.11.4. Planning on rural residential areas
The selection of land zones for construction of residential
houses must satisfy the following requirements:
- Inheriting population distribution status and being
compatible with the population distribution network planning of a relevant
larger area;
- Ensuring the development of population which is
appropriate and convenient for the organization of necessary public works such
as kindergartens, lower secondary schools, service establishments, etc.;
- Being compatible with land and topographical conditions;
determining boundaries based on natural topographical conditions such as roads,
ponds, lakes, canals, ditches, hills, mountains and land strips.
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Each household land lot embraces land for:
- Main house and easement (kitchen, warehouse, ancillary
production zone);
- Ancillary works;
- Passageway, yard, place for storing straw, firewood,
garbage, fence;
- Garden land, pond land, etc.
The composition of components in a land lot must ensure
convenience for households’ daily-life and production activities, creating an
architectural appearance for villages and hamlets.
2.11.5. Planning on communal central zones
1) General regulations:
In each commune, at least one central zone must be planned.
For communes with large population and area, there may be a principal center
and a subsidiary center. In the central zone, to arrange important works in
service of administrative transaction, shopping, rest and recreation needs such
as:
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- Communal public works: cultural house, club, heritage hall,
library, primary school, lower secondary school, sports ground, market, central
service shop, post office, cultural services;
- For communes with population of 20,000 people or more, an
upper secondary school must be planned.
2) Head offices of communal agencies:
- Head offices of the communal People’s Council and People’s
Committee and their attached bodies; head offices of the communal Party
Committee and mass organizations must be located in one place for convenient
transactions and economical use of land.
- The land area for head offices of communal agencies must
be at least 1,000m2.
3) Schools:
Each commune must be planned to have a primary school and a
lower secondary school located near residential areas and in quiet places with
good hygienic conditions, ensuring pupils’ safe and convenient travel. Those
schools must be designed according to specialized standards.
4) Kindergartens and preschools:
Kindergartens and preschools must be located right in or
near residential areas and designed according to specialized standards.
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- Each commune must have a health station with the family
planning ward, community health ward, obstetrics ward, medical examination and
treatment wards, professional ward (which do simple tests, prepare traditional
medicines and sell medicines), traditional medicinal-herb garden or flower
garden.
- The communal health station must be located in a quiet,
high and open-air place with abundant water sources which is convenient for
communication with residential areas. The minimum area of land for construction
of a health station without or with traditional-herb garden is 500m2 or
1,000m2, respectively.
6) Cultural and sport works:
- Communal cultural and sport works include culture house;
club; heritage hall, exhibition or information room; library; meeting hall;
broadcasting station; sport ground, etc.
- A cultural house comprises indoor and outdoor recreation
sections and places for artistic activities (singing, dancing, music,
dramatics, traditional opera, reformed opera). The minimum land area of a
cultural house is 2,000m2.
- A heritage hall or exhibition room for displaying
historical objects and combat and production achievements of the locality must
be built on an area of at least 200m2.
- A library must have a reading room of at least 15 seats to
be built on an area of at least 200m2.
- A meeting hall or place for artistic performances must
have at least 100 seats.
- Sport grounds: The communal sport ground should be
combined with the lower secondary school’s sport ground and outdoor ground for
film screening in order to save land; the area of a sport ground must be at
least 4,000m2; available rivers, ponds and lakes should be revamped into
swimming pools and recreation places.
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- Each commune must have at least one market.
- Markets should be located in places convenient for travel,
and on high and easy-to-drain land zones.
- Each market must have a place for keeping bicycles and
motorcycles, a place for collecting and storing daily solid waste, and public
water closets.
- Apart from private service shops, service shops organized
by the commune must be located in the communal center.
2.11.6. Planning on small-cottage industry production zones
- The planning on construction of production and
production-serving works must suit the commune’s production development
potential in terms of:
+ Land (production of specialty paddy, crops, fruits),
animal breeding, aquaculture;
+ Development of branches and trades, especially traditional
ones such as production of goods for export and consumer goods;
+ Development of construction materials industry; stone,
sand and gravel exploitation; food and foodstuff processing, small mechanical
engineering, etc;
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- Concentrated small-cottage industry zones must comply with
land use and environment regulations as those applicable to industrial parks in
urban areas.
- When planning production works, the following solutions
may be applied:
+ Small-cottage industry production establishments causing
no harms may be located in residential areas, in household easements, but must
not let wastewater and noise pollute the environment;
+ Production and production-serving works which have adverse
impacts on the environment must be located into production clusters outside
residential areas and near transport hubs;
+ Between a production zone and a residential zone, there
must be an isolation space suitable to characteristics and scale of production
works.
Notes: The planning on large industrial enterprises in rural
areas and the planning on agricultural production, forestry and fishery are not
governed by this Chapter.
2.11.7. Planning on greeneries in rural residential areas
1) Greeneries in rural residential areas:
Greeneries in communal residential areas include:
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- Gardens of economic trees, fruits and herbs, and
nurseries;
- Isolation greeneries planted surrounding concentrated
production zones or production works.
2) General regulations:
A planning on planting trees in rural residential areas must
satisfy the following requirements:
- To closely combine economic benefits (planting vegetables,
fruit trees, timber trees, and trees for protection, etc.) with requirements on
eco-environmental improvement, defense and security.
- To combine with the planning on planting protection trees
in fields, coastal sand-shielding trees and anti-erosion trees in order to
create a greenery in the commune.
3) Technical requirements:
- To create flower gardens in the central zone and in the
land zone for construction of cultural, historical and religious works.
- Not to plant trees containing toxic resin or fly- or
mosquito-attracting fruits, or thorny trees in health stations, schools,
kindergartens or preschools; to plant high trees with thick and large foliages
which can clean the air.
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- There must be greenery isolation strips surrounding
concentrated production zones and production works emitting dust, stench or
noise, meeting the requirements on isolation space for each type of production
or the extent of discharge.
2.11.8. Regulation on architecture management
The architectural space of rural residential areas must be
studied to suit natural structures and exploit particularities of localities,
creating a typical image for each rural residential area and suitable to
utilities of each work item.
2.11.9. Planning on renovation of old rural residential
areas
The renovation of old residential areas covers:
- Reorganization or adjustment of functional zones in
hamlets; adjustment of public-work networks; improvement of the service quality
and comfort of works; additional construction or expansion of some works;
- Reorganization or additional adjustment of essential
technical infrastructure networks;
- Improvement of environmental sanitation conditions;
- Expansion of the greenery area in residential zones and
along technical infrastructure axes.
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TECHNICAL PREPARATION
PLANNING
3.1. General regulations on
technical preparation planning
3.1.1. Compulsory technical preparations for land areas
planned for construction
- Urban foundation leveling and filling (height planning).
- Planning on rainwater drainage systems.
- Other technical preparations such as lowering of
groundwater level; prevention of landslides; plans to minimize damage caused by
natural disasters (flood, flash-flood, storm, earthquake, flood-tide, etc.).
3.1.2. Requirements on foundation leveling and filling planning
- Being compatible with the rainwater drainage system,
irrigation drainage system and system of works for protection of the land area
from flood.
- Ensuring road slope according to standards.
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- Not making worse the works’ geological conditions or
hydro-geological conditions.
- For existing urban centers, areas with rather high
building density and relatively stable foundation level, the height planning
must suit the present construction status.
3.1.3. Requirements on rainwater drainage system planning
- The rainwater drainage system must ensure the drainage of
rainwater in the whole basin under planning into lakes, rivers, streams or
irrigation drainage systems. Depending on urban-center grades, the nature of
functional zones and the area of water drainage basin, to study the network of
sewers and works in the system based on appropriate rain cycles.
- Regulations on rainwater collection:
+ 100% of inner-city roads must have rainwater drainage
systems;
+ At least 60% of roads in vicinities must have rainwater
drainage systems;
+ For roads of 40m or more in width, to arrange rainwater
drainage systems along two roadsides.
- Common, separate or semi-separate systems must be suitable
to urban sizes, sanitation requirements and natural conditions (topographical,
climatic and hydrographical) and urban status.
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- Ditches and streams running across urban areas must be
embanked and, depending on requirements of urban areas, to apply solutions
suitable to urban landscape and environment requirements.
3.1.4. Requirements on other technical preparations
- Riverside and coastal urban areas must be protected from
inundation.
- The minimum limited foundation level must be 0.3m higher
than the calculated minimum water level, for civil land, or 0.5m, for
industrial land.
- Dike-top level must comply with the specialized irrigation
planning.
- The calculated water level is the highest water level in a
certain frequency cycle (years) as prescribed in Table 3.1
Table 3.1. Calculated water level - maximum water level in a
certain frequency cycle (years)
Urban-center grade
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Special grade
Grade I
Grade II
Grade III
Grade IV
Grade V
Central zone
100
100
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40
20
10
Industrial zone, warehouse
100
100
50
40
20
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Residential zone
100
100
50
40
20
10
Greenery, physical training and sport zone
20
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10
10
10
2
Rural residential zone
- Civil: > average annual Hmax
- Public: >Hmax + 0.3m
- River and lake banks in urban centers must be protected
and reinforced from wave, rainwater or landslide.
- If mud or sand threatens to be washed by rainwater into a
zone planned for construction, measures to block and divert mud and sand from
that zone must be taken.
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- If that zone is located within an area in danger of
mountain-side slide, it is necessary to study geological and hydro-geological
characteristics in the zone in order to seek appropriate technical solutions.
3.2. Regional planning on technical
preparations
In a regional construction planning, the technical
preparation planning must satisfy the following requirements:
- Identifying construction level for urban areas in the
region and main dike systems;
- Devising regional rainwater-drainage solutions for main
rivers, streams and water drainage basins as well as major water-drainage works;
- Identifying zones prone to natural disasters and seeking
prevention measures.
3.3. Planning on urban technical
preparations
3.3.1. Technical preparation planning under general
urban-construction planning
In a general construction planning, technical preparation
planning must meet the following requirements:
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- Identifying restricted construction level of each zone,
the whole urban center and urban trunk roads; clearly determining areas subject
to foundation elevation or lowering and forecasting foundation-leveling
volumes; anticipating earth volumes for embankment and places for storing
redundant earth volumes;
- Identifying main rainwater-drainage basins, main
rainwater-drainage sewer systems; to-be-built reservoirs, and major works;
- Proposing solutions to prevent and mitigate natural
disasters (flood, storm, tsunami, floodtide, etc).
3.3.2. Detailed technical-preparation planning
In a detailed construction planning, technical preparation
planning must meet the following requirements:
1) For detailed plannings of 1/2,000 scale:
- Height planning: must match with relevant areas and meet
requirements on technical infrastructure and urban construction; identify level
at road intersections and special places; determin digging and embankment
locations based on volume-related parameters;
- Rainwater drainage system: To design a sewer network with
adequate technical parameters (dimension, slope, drainage direction, terminal
levels of sewer sections and discharge mouths); identify technical parameters
and locations of expected regulating reservoirs as well as major and local
pumping stations (to be maintained or newly built);
- Other technical preparations: To identify places subject
to embankment or foundation stabilization and anti-flood dikes.
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- Height planning: The requirements are the same as for
detailed plannings of 1/2,000 scale and depending on topographical
characteristics, to reflect the foundation leveling solution through “design
isohypse.”
- Rainwater drainage system: In addition to the requirements
for detailed plannings of a 1/2,000 scale, to identify water collection
stations and technical wells, talus locations, shielding walls, etc.
3.4. Technical preparation planning
for rural residential areas
3.4.1. Height planning (planning on foundation leveling and
embankment)
The height planning for rural residential areas must satisfy
the following requirements:
- Not to level or embank foundation when the work
construction location is not yet identified and when there is no rainwater
drainage planning;
- To plan foundation leveling and embankment for the land
area for construction of works (houses, public houses and works, production
houses, roads). Natural topographical conditions of the remaining land area
shall be kept unchanged. Works’ foundation must be higher than the maximum
regular flood level, especially for warehouses (which store chemical
fertilizers, insecticides, rice seeds), schools, kindergartens, health
stations, etc. The foundation level must be at least 0.3m higher than the
annual maximum calculated water level;
- To ensure that rainwater is fast drained without causing
erosion to roads’ or works’ foundation;
- To ensure convenient and safe traffic and travel;
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- Not to settle population in areas prone to landslide or
flood.
3.4.2. Rainwater drainage planning
- Rainwater drainage planning must suit the irrigation
drainage system.
- For rivers or streams running across residential areas,
their banks must be renovated and reinforced to prevent landslides.
- To select an appropriate water drainage system.
- For residential areas located near hill or mountain sides,
to design canals for water flows from the top of hills or mountains in order to
prevent overflow into residential areas.
- To seek solutions to prevent and mitigate damage caused by
flood.
Chapter IV
TRANSPORT PLANNING
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Requirements on a transport planning:
- To meet passenger and cargo transportation demands in
service of socio-economic development, urbanization and international
integration;
- To clearly grade the transport network;
- The external transport system crossing urban areas must be
compatible with the urban planning.
4.2. Regional transport planning
Requirements on regional transport planning:
- To ensure convenient contact between the region and other
regions and between functional zones in the region;
- To meet passenger and cargo transportation demands in
service of the region’s socio-economic development, urbanization and
international integration;
- To ensure convenient contact between regional and national
as well as international transport systems;
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- National, urban and special-purpose railways must be
connected to one another through station systems, including passenger stations,
cargo stations, technical stations and mixed stations;
- To identify locations and sizes of international and local
airports and airfields;
- To identify types of seaport (grade I, grade II and grade
III), locations and sizes of regional seaports;
- To identify inland waterway fairways and ports.
4.3. Urban transport planning
4.3.1. External transport system
1) Road:
- Motor expressways of grade 80, grade 100 and grade 120
must run outside the scope of urban construction planning and comply with specialized
regulations (see Appendix 15).
- Not to arrange motorways of grades I, II and III (Appendix
15) running through urban areas but to arrange by-passes instead. Particularly,
grade-III roads may run through some urban areas but planning solutions to
ensure external transport and urban transport safety are required.
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- To arrange garages and stopovers for cars running through
urban areas, which are near transport hubs to urban areas.
2) Railway:
a/ Railway routes:
- For urban centers of special grade and grades I and II
with national railways crossing, to build by-passes outward urban centers or
apply appropriate transport organization solutions so that railways will not
adversely impact urban centers.
- In urban centers of special grade and grade I where
railway routes transport large numbers of passengers, to arrange railway routes
or stations for passengers to travel to and from inner cities and vicinities.
- Urban houses must be at least 20m far from the heart of
the nearest rail. In localities where railways run on trenches, the isolation
space may be shorter but must not be under 10m. At least 50% of the width of
the isolation strip must be planted with green trees.
- For renovated urban areas, to build protection isolation
fence walls and ensure the prescribed distance for maintaining railway traffic
order and safety (see Appendix 4).
b/ Intersections between railways themselves and between
railways and roads:
- Intersections between railways themselves, and between
urban railways, roads and traffic axes must be arranged at different heights.
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c/ Railway stations:
- Main passenger stations must be located near civil areas
and have convenient connections with the central zone, residential areas and
industrial parks. For urban centers of special grade and grades I and II,
passenger stations may be located in the center of urban areas, but measures to
minimize noise and intersections with urban roads of different types must be
taken.
- Cargo stations must be located near industrial parks and
cargo-supplying and -receiving establishments in association with cargo
stations, warehouses or yards.
- Technical stations in service of technical operations of
locomotives and cars must be located outside civil areas.
- Mixed stations are those which have the functions of
stations of two or three types specified in this Section.
d/ Station foundation dimensions:
Station foundation dimensions must meet the requirements in
Table 4.1.
Table 4.1. Foundation dimensions of stations of different
types
Type of station
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Station foundation length (m)
Station foundation width (m)
1. Passenger station
- Terminal station
≥ 1,000
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- Right-away station
≥ 1,400
≥ 100
2. Cargo station
≥ 500
≥ 100
3. Technical station
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≥ 4,000
≥ 200
Mixed
≥ 2,700
≥ 250
Parallel
≥ 2,200
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4. Mixed station
Vertical
≥ 1,500
≥ 50
Semi-vertical
≥ 1,300
≥ 50
3) Airway:
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- When making a plan, the size and area of land for airports
or airfields must be calculated based on standards of the airlines industry and
the International Civil Aviation Organization (ICAO).
- For roads from urban areas of special grade and grades I
and II to airfields which are over 20km long, motor expressways must be built.
4) Waterway:
a/ Seaports, ports and inland waterway wharves must be
located suitably to each type of port:
- Passenger ports will be located near service centers and
residential centers.
- Cargo ports and ports for transporting less polluting
cargo in direct service of urban areas will be located in inner cities.
- Ports for transporting polluting cargo, and oil and fish
wharves will be located in suburbs.
- Liquid fuel depots will be located in suburbs, at the end
of wind directions and river streams against the whole urban area.
b/ Locations of seaports, ports and inland waterway wharves
must meet the following requirements:
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- Being at the end of streams (against civil areas);
- Being convenient and safe for ships and boats to enter and
leave;
- Having stable geological conditions at port-docks;
- Being built on an area suitable to each type of port;
- Being near road and railway transport hubs, industrial
parks, warehouses and ship-repair yards.
c/ Port dimensions must comply with requirements specified
in Tables 4.2 and 4.3.
Table 4.2. Regulations on port area
Type of port
Characteristics
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Seaport
- Protruding quay
≥ 150
- Along-coast quay
≥ 300
Inland waterway port
- Public port
≥ 250
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- Special-use port
≥ 300
- Public wharf
≥ 100
- Special-use wharf
≥ 100
Table 4.3. Waterline according to ship tonnage
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Capacity (TEU)
Waterline (m)
A. Riverway ship of a tonnage of 2.000
≥ 2.5
1.000
≥ 1.8
600
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≥ 1.5
300
≥ 1.2
100
≥ 0.9
40
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B. Seagoing ships of a tonnage of:
-20,000
1,380
≥ 10.5
-30,000
2,000
≥ 11.1
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2,700
≥ 12.2
- 50,000
3,000
≥ 12.4
-60,000
4,100
≥ 13.8
- 220,000
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≥ 14
- 150,000
Dry cargo
≥ 17
4.3.2. Planning on urban transport system
1) General requirements on urban transport planning:
- Urban transport system must meet cargo and passenger
transportation requirements and ensure fast and safe contact between all
functional zones in urban centers and with external transport works as well as
other urban centers and residential areas.
- Distinguishing roads in service of industrial parks,
warehouses, outbound roads and inner-city roads.
- Forecasting cargo and passenger transportation demands and
means of urban transport in order to determine the land fund for the future
development of means of transport. For urban centers of grade III or higher
grade, to anticipate development prospects and organize modern mass transit
networks such as urban railways, express buses, combined stations between
national railways, suburb railways and urban railways, and hubs connecting to
motorways, waterways and airways.
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- Urban road networks must be planned into a connected
system to ensure fast and safe connections between all functional zones in
urban centers; connect with outbound transport works, suburb functional zones
and other residential areas.
- Identifying market shares of public passenger
transportation according to modes of transportation in order to determine
future means of mass transit. For urban centers of grade III or higher grade,
to organize mass transit networks such as buses, express buses, urban railways,
hubs connecting to national railways, suburb railways, urban railways,
motorways, waterways and airways.
- Urban roads must be classified based on their transport
functions and calculated speeds suitable to criteria for inner-city roads.
2) Regulations on urban road system:
- For urban areas of special grade and grade I: Urban roads
must comply with the regulations specified in Table 4.4.
- For urban areas of grades II, III, IV and V: Depending on
their population size and characteristics, to organize urban road networks according
to relevant regulations in Table 4.4.
- Pavements for pedestrians along each side of road must
have a minimum width specified below:
+ For urban roads and streets connecting to accesses to
trade centers, markets or cultural centers: 6.0m;
+ For regional roads: 4.5;
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+ Roads in groups of residential houses: Roads with
pavements are not required but traffic safety assurance solutions are required
and green trees must be planted along roads.
- Road parts for bicycles: Along roads of regional or higher
grade, separate road parts for bicycles must be arranged with median strips or
lines against motorways. On roads of other kinds, bicycles and motor vehicles
may use the same road parts. The width of road parts for bicycles must be at
least 3.0m.
- Inner-city roads must satisfy specialized technical
criteria (see Appendix 15).
- The ratio of land for traffic and static traffic within
land for urban construction must be at least:
+ 6%, counted to inter-regional roads;
+ 13%, counted to regional roads;
+ 18%, counted to sub-regional roads.
Table 4.4. Regulations on urban roads of different types
Road grade
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Design speed (km/h)
Lane width (m)
Road width (m)
Distance between two roads (m)
Road density (km/km2)
Urban (**)
1. Urban highways
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4,800÷8,000
0.4÷0.25
- Grade 100
100
3.75
27÷110
-
- Grade 80
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3.75
27÷90
-
2. Urban main axes
80÷100
3.75
30÷80(*)
2,400÷4,000
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3. Urban main roads
80÷100
3.75
30÷70(*)
1,200÷2,000
1.5÷1.0
4. Inter-regional roads
60÷80
3.75
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600÷1,000
3.3÷2.0
Regional
5. Regional main roads
50÷60
3.5
22÷35
300÷500
6.5÷4.0
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40÷50
3.5
16÷25
250÷300
8.0÷6.5
Local
7. Sub-regional roads
40
3.5
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150÷250
13.3÷10
8. Roads in groups of residential houses, house adits
20÷30
3.0
7÷15
-
-
9. Road parts for bicycles
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1.5
≥ 3.0
-
-
Road parts for pedestrians
0.75
≥ 1.5
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Notes:
(*) Depending on the size and conformation of urban areas
and transport requirements
(**) The width should increase based on specific
calculations when urban railways and express bus routes are arranged.
- The number of two-way lanes must be at least 4, for urban
roads; 2 for regional roads; or one, for local roads.
- For renovated areas, the width of road grades may be
reduced to suit specific conditions but the width of building lines must not be
smaller than 4.0m.
- The research of the road network planning under the urban
construction planning must comply with current regulations on construction
planning (see Appendix 14) and must ensure that:
+ In general construction plannings on topographical maps of
1/25,000 scale, the transport system planning should take into account
inter-regional roads;
+ In general construction plannings on natural topographical
maps of 1/10,000 scale, the transport system planning should take into account
regional main roads;
+ In general construction plannings on topographical maps of
1/5,000 scale, the transport system planning should take into account regional
roads;
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+ In detailed plannings of 1/500 scale, the transport system
planning should take into account roads in groups of residential houses.
3) Transport hubs and squares:
a/ Intersections of urban roads:
- Intersections between urban roads are organized as
follows:
+ Urban expressways, trunk roads and main roads must be
intersected with other urban roads at different heights;
+ In important locations, urban expressways and trunk roads
must be intersected with inter-regional streets and transport roads at
different heights. In subsidiary directions, traffic flows may be intersected:
+ For roads of other types, traffic may be organized at the
same height;
+ The radius from the heart of roads at intersections at
different heights must be at least 75m, for turn-right flows, or 30m, for
turn-left flows.
- The clearance at intersections at different heights must
be ≥ 4.5m between motorways; ≥ 6.55m between motorways and railways, for
railways of a gauge of 1,435mm; or ≥ 5.30m, for railways of a gauge of 1,000mm.
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The dimension of a circle traffic square (roundabouts)
depends on the number of intersecting roads and calculated traffic flows at
directions, but the curve radius of a circle island must be at least ≥ 20.0m.
- The curve radius of pavement at street intersections must
be at least:
+ 15.0m, at traffic squares and urban streets;
+ 12.0m, for regional streets;
+ 8.0m, for local streets.
b/ Median strips:
- A median strip is a road part used for dividing traffic
flows into two separate lanes or dividing road parts for motor vehicles and
rudimentary ones.
- The width of a median strip must be at least:
+ 5m, on expressways;
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+ 5m, between the surface of urban trunk roads for vehicles
and internal roads;
+ In case of narrow roads in mountainous areas, the width of
a median strip between the surface of trunk roads for vehicles and internal
roads may be reduced but must not be smaller than 3m;
+ 2m, between the surface of inter-regional streets and
internal roads;
+ 2m, between the surface of roads for motor vehicles and
the tramcars’ road foundation.
- The width of fenced median strips must be at least 4m on
expressways, or 2m on urban trunk roads and transport roads.
- For renovated areas, solid or soft median strips of at
least 0.5m wide may be used.
In the central median strip of a width of less than 5m, not
to place lamp-posts, advertisement boards or other works irrelevant to traffic
safety assurance.
c/ Squares:
- For main squares located in urban centers, vehicles are
not allowed to pass, only means of transport in service of works on squares are
allowed.
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- Traffic squares and squares in front of bridges must
comply with traffic organization charts.
- On station squares, to divide flows for to-and
fro-passengers, ensuring safety and the nearest distance for passengers going
to public traffic stations and parking lots.
- Squares at hubs of transport works must be planned into
sub-zones for passengers’ convenient, fast and safe transshipment.
d/ Mass transit network
- To serve the transport of people in urban centers of grade
III or higher grade, to focus on mass transit development.
+ The distance between mass transit routes must be between
600m and 1,200m; in urban centers, this distance must be at least 400m.
+ The distance for pedestrians to go from their residential
or working places to public car parks must not exceed 500m.
- Types of means of mass transit depend on types of urban
centers and amounts of passengers. For urban centers with a calculated
population of more than one million, to study the construction of urban railway
systems (systems of subways, tramcars or sky trains).
- Mass transit network density depends on urban planning
structure, which must be at least 2.0km/km2 of land for urban construction. The
distance between transit stations in urban centers must be:
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+ At least 800m, for bus stops, express-tramcar stations,
express subways or sky trains.
- At intersections between highways and roads passed by
means of mass transit, to locate transshipment stations with a road length for
pedestrians of less than 200m.
- Bus stops and tramcar stations on trunk roads with signal
lamp or posts must be located at least 20m far from intersections. The length
of a one-route or one-direction station must be at least 20m; on
multiple-direction routes, specific calculation is needed, but this length must
not be less than 30m. The station width must be at least 6m.
- The final terminal of a route must have a service house
for workers and a waiting lounge for passengers.
- On expressways and express bus stops, special parking
stations with speed change strips outside the traffic lane should be located.
e/ Urban railway system
- Outside-street urban railway system is the system of
express railways, including subways and tramcars. Based on mass transit
demands, to determine locations of outside-street railway stations and routes.
Subway stations must be connected, synchronous and safe for underground works
and between underground works and ground-surface works.
- The width of the red line planned for tramcar routes along
urban routes must take into account railway system. The tramcar corridor’s
width must be-at least 10m.
4.3.3 Planning on works in service of urban traffic
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- Parking lots and cargo loading grounds must be located
near markets, cargo stations, commercial centers and other works having great
transport needs.
- In renovated urban areas, streets prohibited for
circulating vehicles and roads with traffic lane larger than their designed
capacity may have parking lots for cars. The width of a parking space must be
at least 3m if vehicles park along the road or at least 6m if vehicles park at
an angle of 45°- 60o.
- Public ground or underground parking lots must be located
near trade, service, sports and recreational centers and be interconnected with
street networks. The maximum walking distance is 500m. Underground parking lots
and garages shall be connected in a way that ensures compatibility, uniformity
and safety among underground works and between underground and ground works.
- Bus terminals and garages must be located at first and
final stops of bus routes and their sizes shall be determined based on specific
demands.
- Locomotive tram depots shall be arranged at first and
final stops and linking points of tram routes for repair services.
- The minimum single parking space for some vehicles in a
parking lot is specified as follows:
+ 25m2, for cars,
+ 3m2, for motorcycles,
+ 0.9m2, for bicycles,
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+ 30m2, for trucks.
- Works must meet requirements on minimum parking space
specified in Table 4.5 below:
Table 4.5: Minimum parking space for cars
Types of buildings
Minimum car parking space
requirements
- Hotels of three-star or higher grade
4 rooms/single parking space
- Luxury offices, offices of foreign relation agencies
100m2 of use
floor/single parking space
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100m2 of use
floor/single parking space
- Luxury apartment buildings
1 apartment/1.5 single parking
space
- Under-three-star hotels, offices and service works must
have parking space ≥ 50% of the levels specified in the above table.
4.3.4 Planning on urban traffic safety assurance
1) Visibility: Construction works and trees must not limit
visibility and hide traffic signs and signals.
The distance of one-way visibility on contour maps and
vertical section depends on calculated speeds, but must satisfy the following
minimum requirements:
Expressways: ≥ 175m;
Urban roads: ≥ 100m:
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Internal roads: ≥ 40m.
2) Public works accommodating large numbers of to-and-fro
people, and works on sidewalks such as kiosks, public transport stations, advertisement
boards and trees must not affect the traffic flow and safety.
3) Chamfer angles at intersections
To ensure a safe visibility for traffic, works at
intersections must be chamfer cut in conformity with sectional planning. Based
on prescribed speeds and road construction norms, the minimum visibility must
be ≥ 20m. When the building line coincides with the red line or when a work is
built within the building line with a set-back against the red line but still
fails to satisfy the minimum visibility requirement, the facade of the work
must also be chamfer cut to ensure the minimum visibility.
4) Sidewalks and crosswalks
- A level crosswalk of a road must be larger than 6m for
trunk roads and 4m for sectional roads.
- The distance between two level crosswalks of a road must
be larger than 300m for trunk roads and 200m for sectional roads;
5) Overpasses and tunnels for pedestrians must be built at
traffic hubs with large numbers of circulating traffic and pedestrians; grade
intersections, intersections where urban roads cut railways; and locations near
subway stations, carparks and stadiums.
- The distance between tunnels and overpasses for
pedestrians is ≥ 500m.
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4.4. Traffic planning for rural
residential areas
Planning on traffic road networks of rural residential areas
must satisfy the following requirements:
- Conforming with local (district, provincial) master plans,
taking over and developing existing road networks in response to current and
future transport demands; interconnecting with national, provincial and
district road networks.
- Associating with master plans on irrigation systems,
population and works for agricultural and rural modernization.
- Matching existing and future means of transport.
- Ensuring convenient connection with district and provincial
road systems to create a complete road network.
- Ensuring direct convenient connection between centers and
population quarters, between population quarters and production zones and
between residential areas.
- Making full use of existing conditions, being suitable to
local terrains, reducing ground clearance compensation, volume of digging and embankment
work as well as the number of works to be built on a route.
- Road structure and surface width must be suitable with
specific conditions of each commune and satisfy technical requirements for
rural roads, meeting current and future development demands.
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- The cross section of an internal road in rural residential
areas must be ≥ 4m.
Chapter V
WATER SUPPLY PLANNING
5.1. Water-supply works protection
zones
1) Water-sources protection zones
Water sources to be supplied to urban centers must have
protection zones surrounding them as prescribed in Table 5.1
Table 5.1. Protection zones of urban water sources
(principal regulations)
Types of water sources and
protection zones
Radius of protection zones
counting from water sources (m)
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Surface water sources from water-taking points:
Construction; discharge of waste
and irrigation water; animal breeding; bathing and washing
- Upstream
- Downstream
≥ 200
≥ 100
Underground water sources: around drilling wells with a
radius of
≥ 25
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Reservoirs, dams:
- With flat banks
- With sloping banks
≥ 300
The entire area
Construction; animal breeding;
fruit tree plantation
2) Protection zones of water supply plants and stations
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- To ban construction of dwelling houses, works in service
of daily life and recreation, and toilets, tree fertilizing and animal breeding
inside these fence walls.
3) Water pipe-protection zones must be at least 0.5m from
pipes.
5.2. Regional water supply planning
Regional water supply planning must:
1) Assess current water supply status of urban centers,
rural residential areas and industrial parks in studied areas regarding the
number of qualified and unqualified water supply works and the number of
inhabitants supplied with clean water.
2) Forecast water demands of each urban center; industrial
parks and rural residential areas (for urban centers of district and town
levels or higher, for interregional planning; and for urban centers of township
level or higher, for provincial planning).
3) Identify water sources:
a/ Water sources shall be selected in accordance with
regulations of water source planning and management agencies. Water sources
shall be used regardless of administrative management boundaries.
b/ To determine water reserves (including surface and ground
water sources). The flow of a water source (except for islands and high
mountains) must be at least 10 times the use demand. The monthly or daily flow
of surface water sources must reach 95% for water supply reliability level I; 90%
for water supply reliability level II; and 85% for water supply reliability
level III.
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- Hardness °dH ≤ 12;
- Dried sediments not exceeding 1,000 mg/l;
- No strange smell or taste;
- Salinity not exceeding 250mg/I.
If water sources failing to meet the above requirements must
be used, such use must be approved by epidemic management agencies and
appropriate and economical treatment methods shall be adopted.
Water for production shall be selected based on specific
quality requirements of each water user.
d/ To prioritize the use of surface water sources meeting
the above requirements.
e/ Not to use ground water sources for supply for non-daily
life needs. Areas that do not have other water sources, but have sufficient
ground water sources may use ground water for other purposes as permitted by
water source management agencies.
f/ To permit the treatment of mineral or sea water for
supply for daily life needs, but econo-technical comparison with other water
sources is required.
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h/ A water supply system may use different water sources
with different hydrological and hydrogeological properties.
i/ Plans on water source selection must be comprehensively
evaluated based on criteria on reserves, quality, feasibility and investment
capital.
4) Propose water supply solutions:
- To select specific water sources for urban areas and rural
residential areas;
- To determine sizes of key works and preliminary treatment
technologies for water sources;
- To determine water source-based supply solutions for rural
residential areas.
5.3. Urban water supply planning
5.3.1. General planning on urban water supply
1) General planning on urban water supply must satisfy the
following requirements:
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- Rationally selecting water sources;
- Selecting construction sizes and sites of key works;
- Determining water treatment technologies.
2) Forecast of urban water use must ensure that:
a/ Water users: Urban water supply systems must satisfy
requirements on quality, pressure and flow of water for supply to meet urban
use demands, including:
- Water for daily life of urban inhabitants (including inner-city
and suburban inhabitants);
- Water for daily life of non-residents;
- Water for public works and services: ≥ 10% of the volume
for daily life;
- Water for tree watering and road cleaning: ≥ 8% of the
volume for daily life;
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- Water for industrial parks shall be determined based on the
types of industry, but must ensure a minimum of 20m3/ha/day for at least 60% of
the area;
- Reserve and leaking water must not exceed 30% of the total
volume for the above demands, for upgraded water supply systems, and 25%, for
new water supply systems;
- Water for water treatment works must be at least 4% of the
total volume mentioned above.
b/ Water supply for daily life must satisfy requirements
specified in Table 5.2.
Table 5.2: Water supply for daily life
Types of urban centers
Water use demands
First stage (10 years)
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Water supply rates (% of
population)
Standards (liter/person/day)
Water supply rates (% of
population)
Standards (liter/person/day)
Special
≥ 90
≥ 180
100
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Grade I
≥ 80
≥ 150
≥ 90
≥ 180
Grade II
≥ 80
≥ 120
≥ 90
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Grade III, IV, V
≥ 80
≥ 80
≥ 90
≥ 100
- Water supply for daily life of suburban inhabitants and
non-residents must reach at least 80% of the norms on water supply for daily
life of respective urban centers.
- Water supply for daily life must be ≥ 40 liters/person/day
for residential areas that only use water from public taps.
c/ Reliability levels of water supply systems, see Table
5.3.
Table 5.3: Reliability levels of water supply systems
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Characteristics of water users
Reliability level
1.
For metallurgy, oil processing and chemicals enterprises,
power plants, and daily life water supply systems for residential areas of
over 50,000 inhabitants, to permit reduction of the water supply flow by no
more than 30% of the designed flow for 3 days and stoppage of supplying water
for no more than 10 minutes.
I
2.
For mining, mechanical-engineering and other industrial
enterprises, and daily life water supply systems for residential areas of up
to 50,000 inhabitants, to permit reduction of the water supply flow by no
more than 30% of the designed flow for 10 days or stoppage of supplying water
for 6 hours.
II
3.
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III
d/ Identification and selection of water sources must
satisfy hygienic requirements for water sources supplied for daily life and
meet urban water use demands.
e/ Water supply system planning:
- Key works must determine:
+ For well pumping stations (if being ground water sources):
the number of wells, technical specifications and measures to raise the
capacity of existing works.
+ For pumping stations I (if being surface water sources):
technical specifications and measures to raise the capacity of existing works.
Works to collect surface water must be in the upper stream against urban areas,
industrial parks and residential areas.
- Treatment works must:
+ Be on the head of the water flow against residential areas
and production areas;
+ Collect a water volume of good quality meeting current and
future demands; be convenient for water source protection and sanitation;
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- Requirements on minimum areas for construction of water
treatment stations are specified in Table 5.4.
- Electricity supply for key works: To determine sources and
build separate transformer stations to supply electricity for well-pumping
stations, grade-I pumping stations and water treatment stations.
Pipe networks: Networks of main pipes shall be designed into
round circuits and hydraulic power shall be calculated to accommodate the volume
of transmitted water and pipe pressure during peak hours of use and when fire
occurs. When there is a tower for water regulating, the network must
accommodate the highest water flow to the tower.
- Required minimum pressure at main points (grade-I
networks) must be 8m for old and upgraded networks and 15m for new networks. If
the pressure is lower, pumps of grade-II pumping stations shall be changed
(within permitted limits) to reach required pressure, or high pressure pumping
stations shall be built at those points.
- Water supply for fire fighting: The flow and number of
simultaneous fires shall be calculated in conformity with urban sizes. The water
flow supplied to a fire must be ≥ 15 liters/second; the number of simultaneous
fires to be calculated must be ≥ 2; free pressure in networks of water supply
for fire fighting must be ≥ 10m.
Table 5.4: Minimum areas for construction sites of water
treatment stations
Capacity of water treatment
stations (1,000 m3/day)
Minimum areas for construction
sites (ha)
1
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1÷5
0.5
> 5÷10
1.0
> 10÷30
2.0
> 30÷60
3.0
> 60÷120
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> 120÷250
5.0
> 250÷400
7.0
> 400÷800
9.0
> 800÷1,200
13.0
1.200 or more
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5.3.2 Detailed planning on water supply for urban functional
zones
Detailed planning on water supply for urban functional zones
must satisfy the following requirements:
1) To forecast water use demands:
- Water for daily life shall be estimated according to
standards of urban centers and the general planning.
- Water for public works and services shall be planned based
on specific characteristics of works, but must be at least 2 liters/m2 of floor
area/day.
- Water for schools must be at least 20 liters/pupil/day.
- Water for preschools must be at least 100
liters/child/day.
- Water for public flower gardens and parks must be at least
3 liters/m2/day.
- Water for road cleaning must be at least 0.5 liter/m2/day.
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- When an area designed in details is within an approved
master plan, the water flow of main water pipes through the designed area shall
be checked. When the water flow is insufficient, the diameter of main pipes
must be changed.
- When a master plan is not available, steps of formulating
a master plan shall be taken.
3) To adopt planning on water pipe networks to ensure water
supply safety.
4) To test pressure: To test pressure based on the network
pressure of the general planning and take measures to ensure water supply
pressure.
5) Water supply for fire fighting:
- To make use of rivers, lakes and ponds for reserve of
water for fire fighting; to ensure sufficient water reserves at any time and
access to water for fire engines. The depth of water surface against the ground
must be no more than 4m and the thickness of water layer must be no less than
0.5m.
- In urban water supply pipe networks, to arrange (ground or
underground) fire-hydrants along streets which must satisfy the following
distance requirements:
+ Maximum distance between fire-hydrants must be 150 m for
special, grade I and grade II urban centers and areas with high population
density; and 150m for other areas.
+ Minimum distance between fire-hydrants and walls of houses
must be 5m.
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- Fire-hydrants shall be located at places convenient for
collecting water such as T-junctions and crossroads.
- Diameters of water pipes for fire extinguishment outside
houses must be no less than 100mm.
5.4. Planning on water supply for
rural residential areas
5.4.1. Water supply demands of rural residential areas
Water for supply to communal residential areas includes:
- Water for daily life of inhabitants in the residential
areas include water for public service works such as kindergartens, schools,
health centers, cultural houses and office buildings.
- Water for poultry and cattle rearing farms.
- Water for farm production and processing establishments
and other industries.
5.4.2. Norms on minimum water supply for daily life
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- Houses having bathroom fixtures and water supply and
drainage pipes: ≥ 80 liters/person/day;
- Houses only having water supply pipes and household water
taps: ≥ 60 liters/person/day;
Water taken from public taps: ≥ 40 liters/person/day;
5.4.3. Water sources
1) To make use of different water sources: shallow and deep
ground water, rainwater and surface water (of rivers, streams and penetrated
wells).
2) To take water treatment measures suitable to each water
source when the quality of source water fails to meet prescribed hygiene requirements
for water for daily life (see Appendix 7).
3) To ensure water source hygiene
a/ For ground water:
- Not to build works polluting water sources in areas within
a radius of 20m from a well.
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- To select areas with good water sources for building
public wells which must be built with high tiled walls.
b/ For surface water: not to build works polluting water
sources within 200m upstream and 100m downstream from the water supply point.
Chapter VI
PLANNING ON WASTEWATER
DRAINAGE, AND MANAGEMENT OF SOLID WASTES AND CEMETERIES
6.1. General provisions
6.1.1. Planning on wastewater drainage systems
1) Provisions on water drainage planning
Urban water drainage systems must:
- Fully collect urban wastewater (from daily life,
production, business and services).
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2) Selection of types of water drainage systems
- (Common, private or semi-private) water drainage systems
must conform with urban sizes, hygiene requirements, natural conditions
(terrain, climate and hydrology) and current status of urban areas and water
drainage systems.
- Provisions on selection of water drainage systems:
+ New urban centers shall build their own water drainage
systems.
+ Existing urban centers with common water drainage systems
shall use semi-private water drainage systems or upgrade common water drainage
systems into private ones.
- Drainage of wastewater for underground works: To adopt
planning on private sewer systems for wastewater drainage, to collect all
wastewater for treatment. Wastewater pumping stations must have standby pumps
and two independent power sources for electricity supply to pumps.
- Wastewater drainage for islands: To adopt planning on
private water drainage systems, to collect and treat wastewater completely.
Treated wastewater meeting environmental requirements may be re-used for other
purposes (watering, fresh water aquaculture, reserve for supply for daily life
in areas in shortage of water sources).
3) Provisions on wastewater discharge
- Industrial wastewater to be discharged into surface water
sources or urban sluices must meet prescribed environmental requirements
(Appendix 8).
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Hospital wastewater must be classified into two kinds:
+ Wastewater from daily-life activities of patients and
medical workers, which must be treated through properly built septic tanks
before being discharged into urban wastewater sewers, and be treated separately
to meet environmental requirements if being discharged into rainwater sewers.
+ Hazardous medical wastewater, which must be treated
separately to meet environmental requirements before being discharged into
urban wastewater sewers.
- Positions of wastewater discharge points:
+ Treated wastewater shall be discharged into surface water
sources at the final point of the flow against urban centers and residential
areas.
+ Positions for discharge shall be determined based on the
calculation of environmental impacts and in conformity with the quality of
wastewater being treated; characteristics and planning on use of water sources
receiving wastewater; and planning on urban areas, industrial parks and
residential areas involved in the protection of water sources.
4) Provisions on wastewater collection:
- Wastewater from daily life shall be collected at ≥ 80% of
the norms on water supply for daily life.
- Industrial wastewater shall be collected at ≥ 80% of the
norms on water supply for industries (depending on types of industries).
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5) Provisions on wastewater treatment:
- Wastewater from daily life activities of urban centers,
industrial parks and craft villages shall be collected and treated separately
in compliance with current regulations on the environment.
- Mud discharged from wastewater treatment systems shall be
collected and transported by special-use vehicles to solid waste treatment
facilities for treatment.
- Mud containing hazardous substances discharged from
wastewater treatment systems shall be collected and transported separately by
special-use vehicles to consolidated hazardous waste facilities.
6) Provisions on environmentally safe distance of pumping
and wastewater treatment stations:
- Requirements on environmentally safe distance between
wastewater pumping and treatment stations, and residential areas, food
enterprises, hospitals, schools and other construction works in urban centers
are specified in Table 6.1.
- Trees shall be planted on areas of ≥ 10m wide within the
environmentally safe distance.
- Environmentally safe distance is not required for
wastewater pumping stations that use pumps installed in closed gas wells, but
air ducts must be installed (air must be emitted at a height of ≥ 3m).
7) Provisions on arrangement of wastewater drainage systems
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- Newly built roads must have water drainage sewers
installed in technical tunnels under sidewalks.
- Sewers for wastewater collection shall be installed along
two sides of roads of ≥ 7m wide.
8) Arrangement of wastewater treatment stations
- Wastewater treatment stations shall be installed at the
end of the wastewater, or main wind directions, and areas having sufficient
land reserved for expansion.
- In special cases when wastewater treatment stations or mud
drying grounds have to be located in places where urban centers’ main wind
starts, the environmentally safe distance specified in Table 6.1 must be at
least 1.5 times higher.
Table 6.1: Minimum environmentally safe distance
No.
Types of works
Environmentally safe distance (m)
corresponding to capacity (m3/day)
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200-5,000 (m3/day)
5,000-50,000 (m3/day)
> 50,000 (m3/day)
1
Wastewater pumping stations
15
20
25
30
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Wastewater treatment stations:
a
- Mechanical treatment with mud drying grounds
100
200
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400
b
Artificial bio-treatment with mud drying grounds
100
150
300
400
c
Artificial bio-treatment without mud drying grounds, but
with mud drying machines and stench treatment equipment, closed building
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15
30
40
d
Area for underground purification of wastewater
100
150
300
500
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Area for tree watering and agricultural irrigation
50
200
400
1,000
f
Biological reservoirs
50
200
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g
Oxidized canals
50
150
6.1.2. Planning on solid waste management
1) General provisions
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- Planning on solid waste management includes inter-provincial
planning and provincial planning. Inter-provincial planning on solid waste
management only takes into account urban areas, industrial parks, economic
zones, tourist resorts, historical-cultural sites of inter-provincial
significance which promote regional development.
- Hazardous solid wastes shall be collected, transported and
treated separately in accordance with the law on environmental protection.
2) Provisions on selection of construction sites of solid
waste treatment facilities
- Urban solid waste treatment facilities shall be located
outside urban centers at the end down the main wind and the end of river and
stream flows. Trees shall be planted around solid waste treatment facilities.
- Urban solid waste treatment facilities shall not be
located at regularly inundated areas, karsts and areas with tectonic rifts.
- When selecting sites for building solid waste treatment
facilities, these facilities’ capacity to provide services for adjacent urban
areas shall be studied to facilitate technical infrastructure investment and
reduce land use demands and environmental pollution.
- Within environmentally safe areas of solid waste treatment
facilities, to permit forestry activities, and construction of transport and
irrigation works, power lines and stations, water drainage and wastewater
treatment systems.
3) Solid waste treatment technologies
- Solid waste treatment technologies planned for solid waste
treatment establishments must be effective, suitable with financial conditions
and not cause contamination to underground and surface water sources and the
surrounding environment.
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4) Solid waste collection
a/ Rates of solid waste collection are specified in Table
6.2.
Table 6.2: Rates of solid waste collection
Types of urban centers
Arising volume of solid wastes (kg/person/day)
Rates of solid waste collection (%)
Special, grade I
1.3
100
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1.0
≥ 95
Grades III-IV
0.9
≥ 90
Grade V
0.8
≥ 85
b/ Requirements for solid waste transfer stations
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- Every solid waste transfer station must have a parking lot
for special-use vehicles, a system for collection and preliminary treatment of
waste liquids;
- Environmentally safe distance of solid waste transfer stations
must be ≥ 20m.
5) Provisions on environmentally safe distance of solid
waste treatment facilities
- Landfills of mixed (inorganic and organic) solid wastes
must have a minimum environmentally safe distance between their fences and the
fool of other construction works of ≥ 1,000m.
- Minimum environmentally safe distance between an inorganic
solid waste landfill and other construction works must be ≥ 1,000m.
- Minimum environmentally safe distance between a solid
waste treatment plant (burning with treatment of waste gas, producing organic
fertilizer) and the foot of other construction works must be ≥ 500m.
- The width of an outside-fence tree range must be ≥ 20m
counting from the fence of a solid waste treatment facility.
6) Hazardous solid wastes shall be sorted, collected and
treated separately.
6.1.3. Planning on urban cemeteries
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- To study die possibility for cemeteries to serve multiple
regions and urban areas when selecting sites for cemeteries construction.
- New cemeteries shall be built outside urban areas at the
end down the wind against residential areas in conformity with master plans on
urban or rural residential development without affecting surrounding
residential areas and water sources for daily life supply;
- Cemeteries for first or one-time burial must not be
located inside urban centers;
- Existing cemeteries in urban centers that fail to meet
environmental standards must no longer be used and plans on their relocation
must be adopted.
2) Requirements on total ground plans for cemeteries:
- Ground plans of cemeteries must ensure sufficient area for
burial, collection and treatment of wastewater from graves of first burial,
pathways, cemetery management houses, grounds for funeral service, trees, relevant
fences and systems of direction signals.
- Mixed cemeteries must have sections for different kinds of
burial (first burial, final burial, cremation) and sections for children,
religious people.
3) Provisions on use of cemetery land:
- The use of cemetery land shall be estimated based on urban
population forecast. The land use limit for a grave is specified as follows:
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+ A grave of final burial: ≤ 3m2.
- Rates of land use in cemeteries:
+ At most 70% of the area of a cemetery for first and
one-time burial shall be used for burial; at least 30% for transport and
accessory works.
+ At most 50% of the area of a cemetery for final burial
shall be used for burial and at least 50% for transport and accessory works.
4) Provisions on environmentally safe distance: of
cemeteries:
Minimum environmentally safe distance from a cemetery to a
road surrounding residential areas, schools, hospitals and offices is specified
as follows:
- In delta regions:
+ Minimum environmentally safe distance of a cemetery for
first burial is 1,500m when a system of collection and treatment of wastewater
from graves is not available and 500m when such a system is available.
+ Minimum environmentally safe distance of a cemetery for
final burial is 100m.
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+ Minimum environmentally safe distance of a cemetery for
first burial is 2,000m when a system of collection and treatment of wastewater
from graves is not available and 500m when such a system is available.
+ Minimum environmentally safe distance of a cemetery for
final burial is 100m.
- Minimum environmentally safe distance of a cemetery for
one-time burial is 500m.
- Minimum environmentally safe distance from a cemetery for
first burial to a work of concentrated exploitation of water for daily life is
2,500m.
- Minimum environmentally safe distance from a cemetery to
the nearest edge of water surface (of rivers, lakes and sea) which are not used
for supply for daily life:
+ For a cemetery for first burial: 300m;
+ For a cemetery for final burial: 100 m.
- Minimum environmentally safe distance from a cemetery for
first burial to urban beltway and railway is 200m and there must be trees
surrounding cemeteries.
- Minimum environmentally safe distance from a newly built
crematory to the nearest residential areas, public or civil works is 500m.
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5) Provisions on collection and treatment of wastes from
cemeteries:
- Solid wastes shall be collected and treated in accordance
with environmental sanitation requirements.
- There must be a system to collect water from graves of
first burial for concentrated treatment before being discharged into the
environment.
- Areas for treatment of wastewater from graves of first
burial must be located down the wastewater flow in the lowest area of a
cemetery.
6) Funeral parlors:
- Each urban center must have at least a funeral parlor.
- A funeral parlor provides services for a maximum of
250,000 people.
- Construction sites of new funeral parlors must not cause
adverse impacts on the operation of other functional zones and urban transport
activities.
- Minimum environmentally safe distance from a new funeral
parlor to:
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+ A market, school or hospital is 200m.
Each funeral parlor must have a minimum premise of 10,000m2.
6.1.4. Planning on public toilets
- To install public toilets along trunk roads and in
commercial areas, parks, markets, stations and public places.
- The distance between two public toilets on trunk roads is ≤
1.5km.
- Main bus stops must have toilets.
- To build underground public toilets in areas with limited
land funds or those having special value of urban view.
- To use a room at the ground floor of high buildings as a
public toilet with direction signs.
- At suburban filling stations, to install public toilets ≥
10m away from petrol tanks.
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6.2. Planning on wastewater
drainage, solid waste management and regional cemeteries
Regional construction planning concerning wastewater
drainage, solid waste management and cemeteries must meet the following
requirements:
- To determine norms on wastewater, solid waste and cemetery
land;
- To forecast the total volume of wastewater and (ordinary
and hazardous) solid wastes;
- To project land demands for wastewater treatment and solid
waste works and cemeteries;
- To select wastewater drainage systems;
- To determine locations and sizes of ordinary and hazardous
solid waste treatment facilities and regional wastewater treatment areas;
- To propose technologies for solid waste and wastewater
treatment;
- To propose appropriate burial technologies.
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6.3.1. Planning on wastewater drainage, solid waste
management and cemeteries in construction master plans
General planning on wastewater drainage, solid waste
management and cemeteries of an entire urban area must meet the following
requirements:
- To determine norms of wastewater, solid wastes and land
for cemeteries of the urban center,
- To forecast the total volume of wastewater, solid wastes
and demand for cemetery land;
- To select and plan wastewater drainage networks
(wastewater pumping and treatment stations);
- To propose wastewater treatment technologies;
- To determine locations and project land demand for
construction of key works (wastewater and solid waste treatment);
- To determine collection scope and treatment technologies
for solid wastes;
- To determine positions and sizes of transfer stations and
solid waste treatment facilities;
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6.3.2. Planning on wastewater drainage, solid waste
management, cemeteries and public toilets in detailed construction plans
Detailed plans on construction of wastewater drainage
systems, solid waste management, cemeteries and public toilets must meet the
following requirements:
- To determine norms and volumes of wastewater and solid
wastes;
- To plan on water drainage systems and wastewater treatment
works;
- To determine sizes of wastewater treatment works and
technologies;
- To determine collection scopes and sizes of transfer
stations and solid waste treatment technologies;
- To determine locations and sizes of funeral parlors;
- To determine positions of public toilets.
6.4. Planning on water drainage,
solid waste management and cemeteries of rural residential areas
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- Concentrated rural residential areas must have drainage
systems for rainwater and wastewater.
- To make use of ponds, lakes and canals for drainage and
natural cleaning of wastewater. To permit the use of rainwater drainage systems
for drainage of wastewater having been treated through septic tanks.
- Contaminated and hazardous wastewater from craft villages
must be classified and treated in accordance with environmental requirements
before being discharged into receiving sources.
- At least 80% of supplied water shall be collected for
treatment.
6.4.2. Solid waste management
- To build hygienic toilets, not to discharge fecal matters
directly into lakes, ponds or fishponds.
- Animal breeding facilities must be at least 5m away from
dwelling houses and common roads and must be separated with trees. Manure and
urines from animal breeding facilities and farms shall be collected and treated
properly (burying or composting);
- Solid wastes from households shall be classified,
collected and treated;
+ Organic wastes may be used for animal breeding; treated by
burying together with manure of cattle on fields or gardens for use as fertilizer;
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6.4.3. Cemeteries
- New cemeteries must be located in peaceful and high areas
without erosion at least 500m away from residential areas.
- To make use of hilly land and land inappropriate for
cultivation for cemetery construction.
- Cemeteries shall be designed to have appropriate pathways,
trees and fences.
Chapter VII
PLANNING ON ELECTRICITY
SUPPLY
7.1. Requirements for electricity
supply planning
Planning on electricity supply systems must fully meet
demands and ensure electricity supply reliability for each group of electricity
users.
1) Types of electricity users and requirements
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Requirements: To ensure constant electricity supply, time of
blackout must not exceed the time for automatic switching on of standby power
sources.
Grade-2 users include urban public works, residential
buildings of over 5 floors, water plants, waste treatment works and concentrated
electricity consumers with an output of 4,000KW or larger.
Requirements: To ensure constant electricity supply, time of
blackout must not exceed the time to operate equipment for manual switching on
of standby power sources.
Grade-3 users include remaining electricity users.
Requirements: Time of blackout must not exceed 12 hours,
standby power sources are not required.
2) Requirement on electricity sources
- Thermopower plants and 500KV source power supply stations
shall be located near big power load centers, national high-voltage grids and
big transport hubs such as ports, national highways, railways, and places
convenient for connecting transmission lines with power plants and stations;
these plants and stations must not be located in inner cities and flooded areas
and environmental sanitation requirements must be satisfied.
- 220KV source power supply stations shall be located in
suburban areas. When these stations have to be located in inner cities, they
must not be located in urban centers and adequate areas for installing stations
and air corridor for connection with medium and high voltage transmission lines
must be ensured. When these stations are installed near urban centers of
grade-1 or special grade cities, they must be closed ones.
- Closed 110KV power supply stations in inner cities of
urban areas from grade II to special grade shall be used.
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- 500KV transmission lines must not go through inner cities
of urban areas.
- 110KV and 220KV high-voltage grids going through inner
cities of urban areas of grade II to special grade must be laid underground.
- Planning on high-voltage power grids must comply with the
Electricity Law concerning planning on electricity development approved by
competent state agencies and current regulations on safety protection for
high-voltage grid works (see Appendix 17).
7.2. Regional electricity supply
planning
1) Load
In regional construction plans, load includes load for urban
areas, rural residential areas, economic zones, specialized zones and
large-sized (industrial, agricultural) production zones in the planned region.
2) Power source
- For big urban and inter-provincial construction plans,
power sources are power plants or transformer stations of 220KV or higher;
transmission grids of 220KV or higher may supply electricity for regions.
- For provincial construction plans, power sources are power
plants and transformer stations of 110KV or higher; transmission grids of 110KV
or higher may supply electricity for the area.
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3) Power grids
- To plan power grids of 220KV or higher for inter-provincial
construction.
- To plan power grids of 110KV or higher for provincial
construction.
- To plan power grids of 22KV or higher for district and
inter-district construction.
7.3. Planning on urban electricity
supply
7.3.1. General planning on electricity supply
1) Load
- In urban construction plans, load includes load for daily
life, public works and services, and (industrial, agricultural) production in
urban areas. Each kind of load shall be projected based on electricity supply
norms.
- General plans on urban construction must comply with the
minimum electricity supply norms specified in Tables below.
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No.
Norms
First period (10 years)
Long-term period (after 10 years)
Special-grade urban areas
Grade-I urban areas
Grade II-III urban areas
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Special-grade urban areas
Grade-I urban areas
Grade II-III urban areas
Grade IV-V urban areas
1
Electricity (KWh/ person/year)
1,400
1,100
750
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2,400
2,100
1,500
1,000
2
Time of highest capacity use (h/year)
2,800
2,500
2,500
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3,000
3,000
3,000
3,000
3
Load (W/person)
500
450
300
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800
700
500
330
Table 7.2: Norms of electricity supply for public works
Types of urban areas
Special-grade urban areas
Grade-I urban areas
Grade II-III urban areas
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Electricity for public works (% of load for daily life)
50
40
35
30
- Norms of electricity supply for industry (industrial
production, warehousing): Demand for electricity supply for existing industrial
parks shall be estimated based on current actual demands or plans on expansion.
To-be-built industrial parks with identified construction land size and
unidentified size and capacity of each plant or enterprise therein must comply
with norms specified in Table 7.3.
Table 7.3: Norms of electricity supply for industrial
production and warehousing
No.
Industries
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1
Heavy industries (pig-iron refining, steel refining,
automobile and machine manufacture, petrochemistry, chemicals, fertilizer),
cement production
350
2
Other construction material industries, mechanical
engineering
250
3
Foodstuff and food processing, electronics, computer,
textile industries
200
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Leather footwear, garment industries
160
5
Small industrial clusters, cottage industries
140
6
Handicraft production establishments
120
7
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50
For industrial parks and clusters where the capacity of each
plant or enterprise is identified, demands for electricity supply shall be
projected based on the specific electricity consumption per product unit.
2) Power source: Power plants and source transformer
stations of 110KV or higher.
3) Power grids are planned according to grades of urban
areas as follows:
- For urban areas of grade I to special grade, power grids
of 110KV or higher shall be planned for the entire areas and those of 22KV or
higher shall be planned for each district.
- For other urban areas, power grids of 22KV or higher shall
be planned for the entire areas.
7.3.2. Detailed planning on electricity supply
1) Electricity supply planning
- Load includes load for daily life, every public work,
production (if any), parks-greeneries and public lighting. Load shall be
calculated based on electricity supply norms which must not be lower than the
norms specified in the following Tables:
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Characteristics of residential areas
Norms (kW/household)
Low residential buildings (1÷2 doors), renovated or newly
built
2
Adjoining residential buildings or 4÷5 storeyed apartment
buildings
3
High apartment buildings (≥ 9 floors)
4
Villas
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Table 7.5: Electricity supply norms for public works and
services (when work construction sizes have been projected)
No.
Electric consumers
Electricity supply norms
1
Offices
- Without air conditioners
- With air conditioners
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30 W/m2 of floor
2
Schools
- Preschools
+ Without air conditioners
+ With air conditioners
- General education schools
+ Without air conditioners
+ With air conditioners
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+ Without air conditioners
+ With air conditioners
0.15 kW/child
0.2 kW/child
0.1 kW/pupil
0.15 kW/pupil
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15 W/m2 of floor
25 W/m2 of floor
3
Shops, supermarkets, markets, trade and service centers
+ Without air conditioners
+ With air conditioners
20 W/m2 of floor
30 W/m2 of floor
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Guest houses, hotels
- Guest houses, one-star hotels
- Two- or three-star hotels
- Four- or five-star hotels
2 kW/bed
2.5 kW/bed
3.5 kW/bed
5
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- National-level hospitals
- Provincial/municipal-level hospitals
- District-level hospitals
2.5 kW/bed
2 kW/bed
1.5 kW/bed
6
Theaters, cinemas, circuses
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25 W/m2 of floor
Table 7.6: Luminance and illuminance for roads of different
types
Road levels
Types of roads
Designed speeds (Km/h)
Minimum luminance (cd/m2)
Minimum illuminance (Lx)
Urban level
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- Grade 120
120
1.5
- Grade 110
100
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- Grade 80
80
1.0
2. Urban axial roads
80÷100
1.2
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80÷100
1.0
4. Inter-sectional roads
60÷80
0.8
Sectional level
5. Sectional trunk roads
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0.6
6. Sectional roads
40÷50
0.4
Internal level
7. Sectional division ways
40
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8. Adits
20÷30
5
Table 7.7: Illuminance for roads for cyclists and
pedestrians
No.
Types of roads
Illuminance (Lx)
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Pedestrian walkways in urban centers
5
2
Roads for cyclists and pedestrians in other areas with
traffic flow being:
a
- High
3
b
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1.5
c
- Low
1
3
Sidewalks with a cross section of over 5m
3
Table 7.8: Illuminance for parks, flower gardens
No.
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En (Ix)
Parks
Flower gardens
1
Gateways
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- Main entrance
7
-
- Sub-entrance
5
-
2
Walkways
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- Main walkways
5
3
- Sub-walkways, walkways with trees
2
1
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Grounds for outdoor activities
5
5
Table 7.9: Provisions on illuminance and luminance for
floors and walls of architectural works
No.
Materials of surfaces of works
Illuminance (Lx)
Luminance (cd/m2)
1
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20
3
2
Light-yellow bricks and paint
30
5
3
Grey stone, cement walls
50
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4
Light-brown bricks and paint
50
5
5
Pink granite
50
5
6
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75
8
7
Red bricks
100
8
8
Black stone, grey granite and paint
100
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9
Dark-color bricks and paint
150
8
- Electricity supply shall be determined according to
approved master plans on urban construction.
- Power grids: To adopt planning on high-voltage, 22KV
medium-voltage and 0.4KV low-voltage power grids, power grids for lighting of
streets, parks, flower gardens, outside surfaces of special architectures, and
cultural and art works (monuments, fountains, bridges spanning big rivers) and
decorative illumination of streets, parks and flower gardens.
2) Urban lighting includes lighting of urban roads, parks,
flower gardens, decorative illumination (of streets, trees, lawns, bridges spanning
big rivers), lighting of surfaces of architectures, monuments, fountains (art
illumination, illumination for advertisement, information and signals).
- Lighting of urban roads includes lighting of streets,
squares for motor vehicles, sidewalks and ways for cyclists and pedestrians.
+ Pavements with a cross section of less than 5m shall be
lighted together with roads and those with a cross section of more than 5m
shall be lighted separately.
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+ Roads for motor vehicles with a cross section of roadway
of 3.5 m or more must meet requirements on minimum luminance specified in Table
7.6.
+ Lighting of roads for cyclists and pedestrians, and
pavements with a cross section of over 5m must meet minimum illuminance
requirements specified in Table 7.7.
- Lighting of parks and flower gardens includes lighting of
entrance and exit gates, grounds for outdoor activities, pathways in parks and
flower gardens. Minimum illuminance for parks and flower gardens is specified
in Table 7.8.
- For lighting of surfaces of architectures, the luminance
specified in Table 7.9 applies.
- Decorative illumination shall only be applied to a number
of trunk roads and public places such as parks, flower gardens, squares on
festive days.
7.4. Electricity supply planning for
rural residential areas
1) Planning on electricity supply systems for rural
residential areas shall be based on the electrification capacity of each
region; must make use of other energy sources such as solar energy, wind power,
biogas and, especially, small hydroelectricity.
2) Planning on electric transmission lines in rural
residential areas shall be closely associated with transport and architectural
planning. Electric transmission lines must not go through places storing
inflammable and explosive substances.
3) Load
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- Demand for electricity supply for public works in rural
residential areas (communal and inter-communal centers) shall be met at least ≥
15% of the electricity demand for daily life of a commune or a number of
neighboring communes.
- Electricity demand for production shall be determined
based on specific demand of each production establishment.
4) Road lighting systems for rural residential areas must be
designed to reach ≥ 3Lx for communal or inter-communal centers and ≥ 1.5Lx for
other roads.
5) Low-voltage stations shall be installed at load centers
or near the largest load, and at places where line installation is convenient,
requires few road crossing and does not obstruct or cause danger to production
and daily life activities.
6) Medium- and low-voltage transmission lines must not be
installed across ponds, lakes, swamps, high mountains, roads with large cross
sections, and industrial production areas.
7) Low-voltage stations and medium- and high-voltage power
grids in rural residential areas must meet current requirements on protection
corridor and distance.
APPENDICES
The appendices below cover current regulations at the time
of promulgating the Code. When new legal documents supplementing or replacing
these regulations are available, provisions of new documents apply.
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REGULATIONS ON URBAN DESIGN
Government’s Decree No. 08/2005/ND-CP of January 24, 2005,
on construction planning:
- Article 30: Urban design under general urban construction
planning;
- Article 31: Urban design under detailed urban construction
planning.
APPENDIX 2
REGULATIONS ON DIKE PROTECTION AREAS
- The 2006 Law on Dikes.
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REGULATIONS ON IRRIGATION WORK
PROTECTION AREAS
- Ordinance No. 32/2001/PL-UBTVQH10 of April 4, 2001, on
Exploitation and Protection of Irrigation Works.
- Decree No. 143/2003/ND-CP of November 28, 2003, detailing
the implementation of a number of articles the Ordinance on Exploitation and
Protection of Irrigation Works.
APPENDIX 4
DOCUMENTS CONCERNING PROTECTION
AREAS OF TRAFFIC WORKS
- Road Law No. 26/2001/QH10.
- Inland Waterway Law No. 23/2004/QH11 of June 15, 2004.
- Maritime Law No. 40/2004/QH11 of June 14, 2004.
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- Civil Aviation Law No. 66/2006/QH11 of May 16, 2006.
- Decree No. 186/2004/ND-CP of November 5, 2004, on
management and protection of road traffic infrastructure.
- Decree No. 109/2006/ND-CP of September 22, 2006, detailing
and guiding the implementation of a number of articles of the Railway Law.
- Decree No. 71/2006/ND-CP of July 25, 2006, on management
of seaports and marine navigable channels.
- Decree No. 94/2007/ND-CP of June 4, 2007, on management of
air navigation.
- Clearance between airports and civil areas (Tables PL4.1
and PL4.2)
Table PL4.1: Minimum clearance between airports and civil
areas (km)
No
Take-off direction and flight
route direction against civil areas
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I
II
III
IV
a
Take-over crossing civil areas
- Flight routes across civil areas
- Flight routes not across civil areas
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5
5
10
10
20
15
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15
b
Take-over and flight routes without crossing civil areas
2
5
6
6
Notes: Grades of airports are determined based on the basic
length of runways specified in Table PL4.2 below:
Table PL4.2: Airport grades according to runway length
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I
II
III
IV
Length of runways (m)
Under 800
800÷1,200
1,200÷1,800
Over 1,800
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1
2
3
4
Notes: (*) ICAO is the abbreviation of the International
Civil Aviation Organization.
APPENDIX 5
REGULATIONS ON SOLID WASTE
MANAGEMENT
- TCVN 6706-2000: Hazardous wastes. Classification.
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- TCXDVN 261-2001: Solid waste landfills. Design standards.
- TCXDVN 320-2004: Hazardous waste landfills. Design
standards.
- The Government’s Decree No. 59/2007/ND-CP of April 9, 2007,
on management of solid wastes.
- The Construction Ministry’s Circular No. 13/2007/TT-BXD of
December 31, 2007, guiding a number of articles of the Government’s Decree No.
59/2007/ND-CP of April 9, 2007, on management of solid wastes.
APPENDIX 6
LEVELS OF HAZARD OF ENTERPRISES AND
WAREHOUSES
- TCVN 4449-1987: Classification of enterprises and
warehouses according to levels of hazard and hygienically safe distance.
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REGULATIONS ON QUALITY OF SUPPLIED
WATER
- The Health Minister’s Decision No. 09/2005/QD-BYT of March
11, 2005, prescribing the quality of water supplied for daily life of urban
areas and rural residential areas.
- The Health Minister’s Decision No. 1329/2002/QD-BYT of
April 18, 2002, prescribing the quality of supplied water for instant drinking.
APPENDIX 8
REGULATIONS ON WASTEWATER QUALITY
- Discharge of daily life wastewater into coastal water
complies with TCVN 5943-1995.
- Daily life wastewater - Permitted limits of pollution
comply with TCVN 6772-2000.
- Discharge of daily life wastewater into water sources for
irrigation complies with TCVN 6773-2000.
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- Post-treatment daily life wastewater satisfies TCVN
7222-2002 requirements.
- Discharge of daily life wastewater into surface water
sources complies with TCVN 5942-1995.
- TCVN 7382-2004: Water quality. Hospital wastewater.
Standards of discharge.
- TCVN 5945-2005 “Industrial wastewater. Standards of
discharge.”
APPENDIX 9
REGULATIONS ON AIR QUALITY
- Quality of the air at points of discharge: TCVN 5937-2005.
- Maximum permitted concentration of a number of hazardous
substances in the air at points of discharge: TCVN 5938-2005.
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- TCVN 5940-2005: Air quality - Standards on industrial
waste gas toward dust and organic substances.
- TCVN 6560-1999: Waste gas from incinerators for medical
solid wastes.
APPENDIX 10
REGULATIONS ON FIRE PREVENTION AND
FIGHTING
- The June 29, 2001 Law on Fire Prevention and Fighting.
- The Government’s Decree No. 35/2003/ND-CP of April 4, 2003,
detailing the implementation of a number of articles of the Law on Fire
Prevention and Fighting.
- Chapter 11 - Construction regulations promulgated together
with the Construction Minister’s Decision No. 439/BXD-CSXD of September 25,
1997, prescribing fire-resistant levels and production grades.
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REGULATIONS ON MAXIMUM PERMITTED
NOISE LEVELS
- TCVN 5949-1998: Maximum noise levels permitted in
residential areas.
- TCVN 5948-1995: Maximum noise levels permitted for road
vehicles.
- TCVN 6436-1998: Maximum permitted levels of noise caused
by road vehicles when parking.
- TCVN 5948-1999: Maximum permitted levels of noise caused
by road vehicles when speeding.
- TCVN 6962-2001: Maximum permitted levels of vibration and
seismicity of construction and industrial production activities toward public
works and residential areas’ environment.
APPENDIX 12
REGULATIONS ON PROTECTION OF DEFENSE
WORKS AND MILITARY ZONES
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APPENDIX 13
REGULATIONS ON PROTECTION OF RELICS
AND SCENIC PLACES
- The June 29, 2001 Law on Cultural Heritages.
- The Government’s Decree No. 92/2002/ND-CP detailing the
implementation of a number of articles of the Law on Cultural Heritages.
APPENDIX 14
REGULATIONS ON CONSTRUCTION PLANNING
- The Government’s Decree No. 08/2005/ND-CP of January 24, 2005,
on construction plans.
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- TCVN 4449-87: Urban construction planning. Design
standards.
APPENDIX 15
REGULATIONS CONCERNING TRANSPORT
PLANNING
- TCXDVN 104-2007: Urban roads. Design requirements.
- TCVN 4054-2005: Roads for automobiles. Design standards.
- TCVN 5729-1997: Expressway for automobiles. Design
standards.
- TCVN 4117-1985: Regulation on design of railroads of 1,435
mm.
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REGULATIONS CONCERNING WATER SUPPLY
PLANNING
- TCXDVN 33-2006: Water supply. Outside networks and works.
Design standards.
- TCXD 233-1999: Norms on selection of surface and ground
water sources for daily-life supply.
APPENDIX 17
PROTECTION OF SAFETY OF HIGH-VOLTAGE
POWER GRID WORKS
- The Electricity Law.
- The Government’s Decree No. 106/2005/ND-CP of August 17, 2005,
detailing and guiding -the implementation of a number of articles of the
Electricity Law concerning protection of safety of power grid works.