Chương I Thông tư 47/2014/TT-BTNMT kỹ thuật thành lập bản đồ hành chính các cấp: Quy định chung

Chapter I

GENERAL PROVISIONS

Article 1. Scope

This Circular prescribes technical requirements in creation of administrative maps of all levels.

Article 2. Regulated entities

This Circular applies to survey and mapping authorities; domestic and foreign organizations, individuals relating to the formation, update, reprinting, use, and management of administrative maps of all levels.

Article 3. Definitions

In this Circular, the terms below are construed as follows:

1. Administrative map means thematic map indicating the separation and management of administrative divisions in accordance with regulations of the Vietnamese government.

2. Governmental administrative map consists of nationwide administrative maps of a minimum ratio of 1:3.500.000; provincial-level, district-level, other administrative level maps in territory atlas that fit page size of A3 or larger.

3. Other administrative map means nationwide administrative maps of a ratio below 1:3.500.000; provincial-level, district-level, other administrative level maps in territory atlas that fit page size below A3.

4. Digital administrative map means administrative maps digitalized from existing administrative maps or maps created from digital data.

5. Secondary map means a map or an illustration of a ratio higher or lower than that of the primary map; secondary map of a lower ratio serves to illustrate position of administrative units within the map; secondary map of a higher ratio serves to specify territory of administrative units within the map only when such details are not shown in primary map.

Article 4. Types of administrative maps of all levels

Administrative maps of all levels include:

1. Nationwide administrative maps are maps indicating the separation and management of provinces in Vietnamese territory including mainland, sea, island, and archipelagos.

2. Administrative maps of provinces and central-affiliated cities (hereinafter referred to as “provincial administrative maps”) are maps indicating the separation and management of districts in a province or central-affiliated city.

3. Administrative maps of districts, district-level cities (hereinafter referred to as “district administrative maps”) are maps indicating the separation and management of communes in a district, district-level city.

4. Nationwide administrative atlases are atlases that consist of provincial administrative maps of the same size in Vietnamese territory.

5. Provincial administrative atlases are atlases that consist of district administrative maps of the same size in provinces.

6. District administrative atlases are atlases that consist of commune administrative maps of the same size in districts.

Article 5. Mathematical basis of administrative maps of all levels

1. Nationwide administrative maps use conical projection grid with the following parameters: 2 standard parallels are 11^o North latitude, 21^o North latitude; prime meridian of 108^o East longitude; base latitude of 4^o North latitude.

2. Provincial and district administrative maps use the VN-2000 Frame of reference and National coordinate system: Global Ellipsoid WGS-84; semi-major axis of 6378137,0m; flattening of 1:298,257223563; transverse cylindrical grid of the same angle as 6-degree-wide wedge with scale factor k0 = 0,9996; prime meridian of each province and central-affiliated city is specified under Appendix 4 attached hereto; and Vietnam national elevation system.

3. Mathematical bases under Clause 1 and Clause 2 of this Article apply to the corresponding types of administrative maps in administrative atlases.

Article 6. Accuracy of administrative maps of all levels

1. Deviation of edge length ≤ 0,2 mm; diagonals ≤ 0,3 mm; distance between coordinate and corner of the map ≤ 0,2 mm relative to the theoretical value.

2. Deviation of real life locations

a) Deviation of locations of government coordinates ≤ 0,3 mm depending on scale;

b) Deviation of geographical features on the map relative to government coordinates: For plateau: ≤ 1,0 mm; for mountainous regions and highlands: ≤ 1,5 mm.

3. Where map symbols are positioned close together, for presentation purposes, it is permissible to move symbols indicating features of a lower accuracy so that spacing between symbols ≤ 0,3 mm.

4. Deviation in elevation due to displacement of contour lines during generation ≤ 1/2 contour interval. In case of mountainous regions where traverse is difficult, deviation is 1 contour interval.

5. Elevation and depth reading is rounded to the nearest meter.

Article 7. Contents of administrative maps of all levels

Administrative maps of all levels consist of:

1. Elements of mathematical bases: frame lines; latitude and longitude grid; national coordinates and elevation; scale and scale indicator.

2. Specialized elements: National border and administrative division border.

3. Background geographical features: Hydrography; topography; socio-economics; traffic.

4. Other elements: Name of map; legends; population density table; secondary map; name of presiding authority; name of entity creating the map; name and origin of component documents; name of publishers and publishing director; copyright; year of publishing.

Article 8. Tasks involved in creation of administrative maps of all levels

1. Editing science.

2. Editing technical.

3. Developing digital author copy.

4. Editing and finalizing author copy.

5. Inspecting and commissioning.

6. Packing and submitting.

Article 9. Component documents of administrative maps of all levels

1. Primary documents

a) Administrative map of an administrative division is created on the basis of administrative division map in respective administrative division dossiers provided by competent authority;

b) Documents on national border provided by competent authority;

c) Background national geographic data, national topography map; land use database and map; cadastral database and map provided by competent authority;

d) Legislative documents on adjustment to administrative division as of the date in which the map is created.

dd) List of international destinations; list of administrative destinations; list of residential, mountainous, hydrography, socio-economic destinations of provinces; list of beaches, islands, archipelagoes provided by Ministry of Natural Resources and Environment.

2. Additional documents

a) Specialized documents on topography, hydrography, residential, traffic, socio-economic;

b) Statistical documents and other maps of the area relevant to the map to be created.

3. Documents must be up-to-date and having scale equal to or greater than that of the map to be created.

Article 10. Creating and reprinting administrative maps of all levels

1. Administrative maps are created when existing administrative divisions are subject to decisions on acquisition or separation of competent authority.

2. Existing administrative maps are reprinted when:

a) Administrative maps of all levels created by the Ministry of Natural Resources and Environment or provincial government must be reprinted with adjustment every 5 years;

b) Where adjustment to at least 25% of the contents of administrative maps occurs before periodic reprinting date, respective maps must be reprinted with the adjustment.

3. Administrative maps are reprinted without adjustment when such maps are required and their contents are relevant.