Circular No. 37/2011/TT-BTNMT stipulates economic and technical norms for the creation of thematic maps at scales of 1:25,000, 1:50,000, 1:100,000, and 1:250,000 using satellite imagery.

CIRCULAR

Regulations on Economic and Technical Standards for Establishing Thematic Maps

at Scales of 1:25,000, 1:50,000, 1:100,000, and 1:250,000 Using Satellite Image Data

___________________________

 

MINISTER OF NATURAL RESOURCES AND ENVIRONMENT

Pursuant to Decree No. 25/2008/NĐ-CP dated March 4, 2008 of the Government stipulating the functions, tasks, powers, and organizational structure of the Ministry of Natural Resources and Environment;

Pursuant to Decree No. 12/2002/NĐ-CP dated January 22, 2002 of the Government on surveying and mapping activities;

Pursuant to the proposal of the Director General of the Vietnam National Mapping Center, the Director of the National Remote Sensing Center, the Heads of the Planning Department and the Legal Affairs Department,

REGULATIONS

Article 1. These Economic and Technical Standards for Establishing Thematic Maps at Scales of 1:25,000, 1:50,000, 1:100,000, and 1:250,000 Using Satellite Image Data are hereby promulgated along with this Circular.

Article 2. This Circular shall take effect from November 30, 2011.

Article 3. The Minister, Heads of Ministries equivalent to Ministries, Heads of Government Agencies, Chairpersons of Provincial People's Committees under the Central Government, Director General of the Vietnam National Mapping Center, Director of the National Remote Sensing Center, Heads of Units under the Ministry, and relevant organizations and individuals are responsible for implementing this Circular.

Article 4. When applying these Economic and Technical Standards, if there are any difficulties or unreasonable aspects discovered, please report to the Ministry of Natural Resources and Environment for study and appropriate amendments and supplements.

ECONOMIC AND TECHNICAL STANDARDS FOR ESTABLISHING THEMATIC MAPS AT SCALES OF 1:25,000, 1:50,000, 1:100,000, AND 1:250,000 USING SATELLITE IMAGE DATA (Issued together with Circular No. 37/2011/TT-BTNMT dated October 14, 2011 of the Minister of Natural Resources and Environment)

Chapter I

GENERAL PROVISIONS 

Article 1. Economic and technical standards for establishing thematic maps at scales of 1:25,000, 1:50,000, 1:100,000, and 1:250,000 using satellite image data are established to serve the method of creating various types of thematic maps using satellite images according to the basic technological process that has been applied by production units in recent years.
1: 50,000, 1: 100,000, 1: 250,000 satellite image materials for constructing maps serving the
method of establishing thematic maps using satellite images according to
basic technological processes that have been applied by production facilities over the years.
Types of thematic maps created using satellite images are typically divided into two main groups as follows:
are divided into two main groups as follows:
1.1. Group of current status thematic maps: Current land use status, current forestry land status, current forest status, current vegetation cover status, current hydrographic system and coastline status, current wetland status, current mangrove forest status, current aquaculture land status, current industrial zones, urban areas...
The group of current status thematic maps uses satellite image data from a specific point in time or a certain period to extract information for establishing current status maps of that time. Current status maps at present in the establishment process include supplementary field investigation work. Current status maps from the past in the establishment process do not include supplementary field investigation work but only collect and refer to materials from that past time.
hydrology and coastline, current status of wetlands, current status of mangrove forests, current
status of aquaculture land, current status of industrial zones, urban areas...
The group of thematic current status maps uses satellite image materials at a specific time or
during a certain period to extract information for creating current status maps of that time. Current
status maps at the present time in the process of establishment include a supplementary field investigation
work step. Current status maps at past times in the process of establishment do not include a supplementary
field investigation work step but only collect and refer to materials from that past time.
coastal erosion, landslides, environmental sensitivity maps, environmental impact assessment maps, environmental
1.2. Group of comprehensive, change, and evaluation thematic maps: Comprehensive coastal zone map, land use change map, forest change map, coastal and beach erosion map, erosion and landslide map, environmental sensitivity map, environmental impact assessment map, environmental pollution trend map, sand encroachment monitoring map, desertification map...
The group of comprehensive, change, and evaluation thematic maps usually uses satellite image data from different periods to extract information for creating derived maps at each time point, then process them comprehensively to establish comprehensive, change, and evaluation maps. Derived maps at present in the establishment process include supplementary field investigation work. Derived maps from the past in the establishment process do not include supplementary field investigation work but only collect and refer to materials from that past time.
pollution trend maps, sand encroachment monitoring maps, desertification maps...
The group of comprehensive, change, and evaluation maps uses satellite image materials from a certain
period or different periods to extract information for creating derived maps at each time point, then
process them comprehensively to create comprehensive, change, and evaluation maps. Derived maps at the
present time in the process of establishment include a supplementary field investigation work step. Derived
maps at past times in the process of establishment do not include a supplementary field investigation work
step but only collect and refer to materials from that past time.
The basic contents above are presented below.
abbreviated as labor quota) is the necessary direct working time to produce
5.1.1. Content of work: Propose basic operations to implement the work step.
5.1.2. Classification of difficulties: Propose key factors affecting the work.
The main steps of the process for establishing the two groups of basic thematic maps are presented below.
Thematic indicators are elements of the thematic content expressed in the

2. Economic and technical norms for establishing thematic maps at scales of 1:25,000, 1:50,000, 1:100,000, and 1:250,000 using satellite imagery shall be applied to calculate unit prices for products of thematic map establishment at scales of 1:25,000, 1:50,000, 1:100,000, and 1:250,000 using satellite imagery. These norms and unit prices serve management and operational activities of the Ministry of Natural Resources and Environment: Used for planning, setting plans, calculating unit prices, preparing budgets, and settling accounts for projects and tasks utilizing satellite imagery for thematic map establishment. 3. Economic and technical norms for establishing thematic maps at scales of 1:25,000, 1:50,000, 1:100,000, and 1:250,000 using satellite imagery shall apply to the following works: 3.1. For current thematic map groups: 3.1.1. Preparation work 3.1.2. Scientific editing 3.1.3. Establishing base maps 3.1.4. Establishing satellite image profiles 3.1.5. Interpreting thematic content elements 3.1.6. Supplementary field surveys (only applicable for the present time) 3.1.7. Creating original author maps 3.1.8. Editing and presenting thematic maps 3.1.9. Preparing explanatory reports on thematic maps 3.2. For integrated, change, and evaluation thematic map groups: 3.2.1. Preparation work 3.2.2. Scientific editing 3.2.3. Establishing base maps 3.2.4. Establishing satellite image profiles 3.2.5. Establishing derived maps: a) Interpreting thematic content elements b) Supplementary field surveys (only applicable for the present time) 3.2.6. Integrating, analyzing, and processing comprehensive data 3.2.7. Creating original author integrated maps 3.2.8. Editing and presenting integrated maps 3.2.9. Preparing comprehensive, evaluation, and forecasting reports 4. Method of establishing norms: Combining synthetic methods (statistics, experience) and analytical methods (calculation analysis).

5. Economic and technical norms include the following component norms:
5.1. Labor technology norms: Labor technology norms (hereinafter referred to as labor norms) are the necessary direct working time to produce a product (to perform a work step).
composition of the map's content. Depending on the type of thematic map or the requirements of the
The content of labor norms includes:
5.1.1. Work content: Specifies basic operations to perform a work step.
thematic map's content, the number of thematic indicators may be more or less. Each thematic indicator
5.1.2. Difficulty classification: Identifies key factors affecting the execution of a work step, serving as a basis for difficulty classification. Key factors affecting each work step may be similar or different due to the nature of that work step. Generally, these factors include geographical and social characteristics of the construction area, materials used in construction, complexity of the map content, number of thematic indicators to be expressed in the map content, density of object representation, area of thematic content representation in a sheet, complexity and difficulty of interpreting and representing objects...
is represented by a type of symbol or annotation in the legend section of the thematic map (excluding
Thematic indicators are content elements of the theme represented in the structure of the map content. Depending on the type of thematic map or the content requirements of the thematic map, the number of thematic indicators can vary. Each thematic indicator is represented by a specific symbol or annotation in the legend of the thematic map (excluding background elements).
background elements).
The level of work is determined through the level of labor based on Decision No. 07/2008/QĐ-BTNMT dated October 6, 2008, issued by the Minister of Natural Resources and Environment to establish technical standards for civil servants in the natural resources and environment sector to determine the technical level of work.
a) Working day (shift) calculated as 8 hours of work;
5.1.3. Staffing: Determines the quantity of labor and technical level of the work. The technical level of the work is determined based on the labor level according to Decision No. 07/2008/QĐ-BTNMT dated October 6, 2008, issued by the Minister of Natural Resources and Environment on the standards of professional qualifications for cadres in the natural resources and environment sector to determine the technical level of the work.
Fieldwork is calculated according to the coefficient in Table A.
5.1.4. Norms: Specify the direct working time to produce a product (to perform a work step); units of measurement are individual hours or group/unit product hours. Product units are measured in the size of topographic map sheets in the VN 2000 reference system.
a) Working day (shift) is calculated as 8 hours of work; b) Field work levels are expressed as fractions, where: Numerator is the technical labor level (calculated in group hours, individual hours). Denominator is the general labor level, calculated in individual hours. General labor is hired workers performing simple tasks such as transporting accompanying equipment, materials, aligning targets, communicating, guiding, and guarding.
Table A. Coefficient due to weather conditions
Technical labor levels when work must be stopped due to weather conditions are calculated according to the coefficient in Table A.
Table A. Coefficient for weather conditions
No.
Region and work for which the coefficient is calculated
Work performed on land
No.

Region and work subject to coefficient

The level of technical labor affected by old satellite images is calculated according to the coefficient in Table B.

Table B. Coefficient for old image levels

5.2. Standard quantities of materials and equipment

5.2.1. Standard quantities of materials and equipment include material usage standards and tool (equipment) usage standards. Material usage standard: Is the quantity of materials required to produce a product (carry out a task). The same material level applies to all difficulties. Tool and equipment usage standard: Is the time (in hours) that workers directly use tools and equipment necessary to produce a unit of product (carry out a task). 5.2.2. Usage period of tools (depreciation period), equipment (amortization period) is the expected time of using tools and equipment in normal production activities, consistent with the economic and technical parameters of the tools and equipment. a) Usage period of tools: Unit of measurement is months; b) Amortization period of equipment: As stipulated in joint Circulars guiding budget preparation between the Ministry of Finance and the Ministry of Natural Resources and Environment. 5.2.3. Electricity consumption of electrical tools and equipment is calculated based on the power of the tools and equipment and their usage standards.

The electricity level in the standard tables is calculated using the following formula: Electricity level = (Equipment power/hour x 8 hours x number of usage periods) + 5% loss. 5.2.4. Standards for small tools and accessories are calculated at 5% of the tool level in the tool standard table. 5.2.5. Small material and loss levels are calculated at 8% of the material level in the material standard table. 6. Abbreviations

Chapter II

ECONOMIC AND TECHNICAL STANDARDS

Section 1

ESTABLISHING CURRENT SPECIALIZED MAPS

1.1. Preparation work

1.1.1. Labor standards

a) Content of work

Collecting satellite images, maps, statistical data, and related information concerning the specialized map to be established, analyzing and assessing the usability of each document.

b) Classification of difficulties: Not classified

c) Staffing: 1 KS4

d) Standard: man-hours/section

Table 1

1.1.2. Material, tool, and equipment standards
a) Tools: hour/section
(1) The level for each case is calculated according to the coefficient in the following table:

Table 2

List of equipment

Materials

Table 4

1.2. Scientific editing
1.2.1. Labor norms
a) Content of work
- Determine the area for map establishment (draw schematic diagrams, location
of construction areas, schematic tables...).
- Determine the theme of the map, scale, name the map, indicators to express
content, layout of content, format of the product map.
- Determine the sources of materials used to establish the map.
- Develop a detailed outline for establishing the map.
b) Classification of difficulties
Type 1: These are maps with simple content, few specialized indicators (less than
10 indicators) displayed on the map, the area representing specialized objects
occupies less than 20% of the map sheet area, low density of lines and annotations,
easy handling of relationships between line elements and text. The process of
editing map content rarely requires the use of specialized literature.

Type 2: These are maps with relatively complex content, moderate specialized
indicators (from 10 to 20 indicators) displayed on the map, the area representing
specialized objects occupies from 20% to 50% of the map sheet area, moderate
density of lines and annotations, sometimes difficult handling of relationships
between line elements and text. The process of editing map content requires the
use of specialized literature, needs to synthesize various factors, and some
supplementary tables.
Type 3: These are maps with complex content, complex specialized indicators
(from 20 to 30 indicators) displayed on the map, the area representing specialized
objects occupies from 50% to 70% of the map sheet area, high density of lines and
annotations, difficult handling of relationships between line elements. The process
of editing map content requires the use of specialized literature, needs to synthesize
various factors, and build supplementary tables.
Type 4: These are maps with very complex content, many complex specialized
indicators (more than 30 indicators) displayed on the map, the area representing
specialized objects occupies more than 70% of the map sheet area, very high
annotations, difficult handling of relationships between line elements. The process
density of lines and annotations, many difficulties in handling relationships between
line elements. The process of editing map content requires the creation of many
d) Standard: man-hours/section

Table 5

Neon light 40W
Dehumidifier 2 Kw
Vacuum cleaner

1.5 Kw

Scale 1/50,000
Scale 1/100,000

Scale 1/250,000

Table 8

Materials

1.3. Establish base map

Type 2: Plain area adjacent to mountainous region; Complete and consistent
topographic map system, moderate changes requiring average updates.
a) Content of work
Type 3: Mountainous, coastal marsh areas; Inconsistent topographic map and
data map system, many changes, requiring relatively frequent updates.
Type 4: Remote mountainous and island regions; Diverse and inconsistent
topographic map and data map systems, many changes, requiring frequent updates.
b) Classification of difficulties
c) Staffing: 1 KS3
d) Norms: work per sheet
Table 9
Establish base map
Update and supplement current base elements based on satellite images
Total
1.3.2. Material, tool, and equipment norms
Computer desk
Pressed in room
Pair
Note: The above level applies to type KK3, levels for other types of KK calculated

according to the following coefficients:

tools, and supplies, and documentation.
a) Tools: hour/section

Table 10

- Input digital images, scan analog images:
Scale 1/100,000

+ Input digital images: Input images; convert formats, log image information.

Table 11

+ Scan analog images: High-resolution scanning; convert formats, log into

Table 12

processing system.
- Physical model calculation:

a) Content of work
+ Assign coordinates to control points of images.
+ Calculate physical model.
- Rectify, mosaic, and cut satellite image map tiles:
+ Rectify images.
+ Mosaic images, handle mosaic errors, cut images according to map sheets.
- Process spectra and present satellite image frame:
+ Process spectra using histograms of each spectral band.
+ Use image filtering techniques to enhance image quality.
+ Present satellite image frame (coordinate grid, sheet name, explanatory notes).
- Print test:
+ Print satellite image through inkjet printer.
+ Check print quality.
- Print satellite image: Transfer rectified image files for printing via Photoshop;
check image quality and print accuracy.
+ Joining images, processing joining errors, cutting images according to map pieces.

- Processing spectra and presenting the map frame:
+ Processing spectra using histograms of each spectral channel.
+ Using image filtering methods to enhance image quality.
+ Presenting the map frame (coordinate grid, piece name, explanatory annotations).
- Test printing:
+ Printing map images via inkjet printer.
+ Quality check.
- Printing map images: transferring aligned image files for printing with Photoshop software; checking
image quality, print accuracy.
These are very complex maps, with many thematic indicators (over 30 indicators) displayed on the map,
representing objects occupying more than 70% of the map area. Objects are difficult to identify, easily
b) Classification of difficulties
Category 1:
- Plainland areas with sparse population and simple terrain features.
- Low mountainous regions with sparse vegetation and population, undivided topography.
- Easy to assess and select points.
Category 2:
- Plainland areas with relatively dense population, small towns and industrial zones;

Intersected mountainous regions with relatively thick vegetation;
- Difficult to assess and select points;
Type 3:
- Plainland areas with dense population.
- Cities, city districts, large industrial zones, complex terrain features.
- Mountainous regions, high mountains with thick vegetation.
- Difficult to assess and select points.
c) Staffing: 1 KS4
Note: The above level applies to type KK3, levels for other types of KK calculated

Table 13

1.4.2. Material, tools, and equipment standards
a) Tools: hour/section

Table 14

- Input digital images, scan analog images:
Scale 1/100,000

Scale 1/250,000

Table 15

+ Scan analog images: High-resolution scanning; convert formats, log into

Table 16

1.5. Interpretation of thematic content elements
1.5.1. Labor standards
a) Content of work
- Receiving and studying technical documents, preparing tools and equipment.
- Interpreting thematic map content elements using similar methods or mathematical calculations.
- Preparing supplementary field investigation route designs: Designing survey routes through areas needing inspection and supplementary mapping; listing field investigation contents.
- Checking and finalizing results.
on the map (less than 10 indicators), easily recognizable objects, thematic object area coverage under 20% of the map sheet area.
Thematic object area coverage from 20% to 50% of the map sheet area. Most recognizable objects, some difficult-to-interpret objects require reference to supporting materials.
Thematic object area coverage from 50% to 70% of the map sheet area. Difficult-to-recognize objects, many difficult-to-interpret objects require reference to multiple types of supporting materials.
b) Classification of difficulties
Type 1: These are maps with simple content, few specialized indicators (less than
Thematic object area coverage over 70% of the map sheet area. Difficult-to-recognize objects, prone to confusion, many difficult-to-interpret objects require reference to multiple types of supporting materials. The full interpretation of map content requires the use of specialized materials and the synthesis of supporting materials.
c) Standard: 1KS3
Type 2: These are maps with relatively complex content, moderate specialized
indicators (from 10 to 20 indicators) displayed on the map, the area representing
1.5.2. Material, tools, and equipment standards
b) Equipment: ca/mảnh
1.6. Supplementary field investigations

supplementary tables.
Type 3: These are maps with complex content, complex specialized indicators
1.6.1. Labor standards
a) Work content
- Contacting to collect necessary materials at the site.

various factors, and build supplementary tables.
Type 4: These are maps with very complex content, many complex specialized
- Verifying and determining the results of indoor interpretation; conducting supplementary field surveys and mapping for specialized content elements and base elements with changes.
- Continuing, repairing, and finalizing results. Completing statistical tables, diagrams, and supplementary guiding materials.
Type 1: Plainland areas with convenient travel; Satellite image and map documentation systems are complete, consistent, and have little change, with low update frequency.
These are maps with simple content, few thematic indicators (less than 10 indicators), easily recognizable objects, thematic object area coverage under 20% of the map sheet area.
Type 2: Plainland areas adjacent to midland areas with convenient transportation; Satellite image and map documentation systems are complete, consistent, and need moderate updates.
Note: The above level applies to type KK3, levels for other types of KK calculated

Table 17

These are maps with relatively complex content, medium number of thematic indicators (from 10 to 20 indicators), thematic object area coverage from 20% to 50% of the map sheet area. Most recognizable objects, some difficult-to-assess objects require reference to supporting materials.
Dehumidifier 2 Kw

Table 18

- Input digital images, scan analog images:
Scale 1/100,000

Type 3: Mountainous and coastal marsh areas with difficult travel; Satellite image and map documentation systems are inconsistent, with many changes, requiring frequent updates.

Table 19

Materials

Table 20

These are maps with complex content, complex number of thematic indicators (from 20 to 30 indicators), thematic object area coverage from 50% to 70% of the map sheet area. Many difficult-to-assess objects require reference to supporting materials.
Type 4: Remote mountainous areas, isolated islands, very difficult travel means; Satellite image and map documentation systems are diverse, inconsistent, with many changes, requiring frequent updates.
These are maps with very complex content, numerous complex thematic indicators (over 30 indicators), thematic object area coverage over 70% of the map sheet area. Difficult-to-recognize objects, prone to confusion, many difficult-to-assess objects require reference to multiple types of supporting materials. Full interpretation of map content requires the use of specialized materials and the synthesis of supporting materials.

c) Standard: 2 KS3
d) Standard: group work hours/mảnh
1.6.2. Material, tools, and equipment standards
b) Materials
1.7. Creating original author maps
b) Classification of difficulties
1.7.1. Labor standards
- Digitizing specialized content elements.
- Integrating specialized elements to ensure geographic correlation with base elements; representing specialized elements according to the author's concept using a system of symbols designed in the editing plan (shape, color, size of symbols...).
Using specialized materials.
1.7.2. Material, tools, and equipment standards
1.8. Editing and presenting thematic maps
1.8.1. Labor standards
- Editing the map according to the original author's guidelines, designing additional symbols, presenting thematic maps.

- Printing, checking, correcting, and finalizing products.
on the map (from 20 to 30 indicators), thematic object area coverage from 50% to 70% of the map sheet area, density of lines and records.
1.8.2. Material, tools, and equipment standards
the following:
Table 30
Table 31
1.9. Thematic map explanatory report
1.9.1. Labor standards
The thematic map explanatory report is prepared based on the following contents:
- Legal basis, necessity, and purpose, requirements for establishing the map, scope of implementation.
- Overview of natural conditions, socio-economic conditions of the area where the map is established.
a) Work content
- Start and end dates of the map establishment work.
- Sources of materials used and map creation technology; clearly specify the type of images, time of image capture used for map creation.
- Evaluating the quality of the map including workload completed; completeness, detail, and accuracy of content elements; compiled data, evaluation according to the purpose of map creation.
- Conclusions and recommendations.

confused, and require referencing multiple supporting materials for accurate judgment. Completing the
map content requires specialized materials and synthesizing supporting materials.
c) Quota: 2 KS3
d) Quota: group work/unit
1.6.2. Material, tool, and equipment quotas
b) Materials
1.7. Creating original author maps
1.7.1. Labor quota

Table 21

- Digitizing professional content elements.
a) Tools: hour/section

TTCItemUnitDuration(months)Rate1Safety uniformpiece90.322Deskpiece600.323Slipperspair600.324Swivel chairpiece600.325Wooden cabinet for documentspiece600.086Wall clockpiece360.087Ceiling fan 40Wpiece600.058Ceiling fan 100Wpiece600.059Neon light 40Wset300.3210Vacuum cleaner 1.5 kWpiece600.0111ElectricitykW0.29

- Integrating professional elements to ensure geographic correlation with the base elements;

TTCItemUnitPower(kW)Rate1Air conditioner 12000 BTUpiece2.200.052ElectricitykW0.92

representing professional elements according to the author's concept using the system of symbols
designed in the editing plan (shape, color, size of symbols...).
a) Content of work
using specialized materials.

1.7.2. Material, tool, and equipment quotas
1.8. Editing and presenting thematic maps
1.8.1. Labor quota
b) Classification of difficulties
Type 1: These are maps with simple content, few specialized indicators (less than
10 indicators) displayed on the map, the area representing specialized objects
occupies less than 20% of the map sheet area, low density of lines and annotations,
easy handling of relationships between line elements and text. The process of
- Correcting and editing maps according to the original author's guidelines, designing additional
Type 2: These are maps with relatively complex content, moderate specialized
indicators (from 10 to 20 indicators) displayed on the map, the area representing
specialized objects occupies from 20% to 50% of the map sheet area, moderate
density of lines and annotations, sometimes difficult handling of relationships
between line elements and text. The process of editing map content requires the
use of specialized literature, needs to synthesize various factors, and some
supplementary tables.
Type 3: These are maps with complex content, complex specialized indicators
(from 20 to 30 indicators) displayed on the map, the area representing specialized
objects occupies from 50% to 70% of the map sheet area, high density of lines and
annotations, difficult handling of relationships between line elements. The process
of editing map content requires the use of specialized literature, needs to synthesize
various factors, and build supplementary tables.
Type 4: These are maps with very complex content, many complex specialized
indicators (more than 30 indicators) displayed on the map, the area representing
specialized objects occupies more than 70% of the map sheet area, very high
annotations, difficult handling of relationships between line elements. The process
density of lines and annotations, many difficulties in handling relationships between
line elements. The process of editing map content requires the creation of many
d) Standard: man-hours/section

TTCItemUnitRate1Record book for workbook0.012Packaging paper sheet0.073Inspection comment paper sheet0.104Red inkbottle0.015Blue inkbottle0.016Black inkbottle0.01

symbols, and presenting thematic maps.
a) Tools: hour/section

Table 25

Scale 1/250,000

Table 26

+ Scan analog images: High-resolution scanning; convert formats, log into

Table 27

- Inkjet printing, quality checking, repairing, and completing the product.
These are complex maps (from 20 to 30 indicators), with objects occupying from 50% to 70% of the
a) Content of work
map area, high density of details and annotations.
1.8.2. Material, tool, and equipment quotas
as follows:
b) Classification of difficulties
Type 1: These are maps with simple content, few specialized indicators (less than
10 indicators) displayed on the map, the area representing specialized objects
occupies less than 20% of the map sheet area, low density of lines and annotations,
easy handling of relationships between line elements and text. The process of
- Correcting and editing maps according to the original author's guidelines, designing additional
Type 2: These are maps with relatively complex content, moderate specialized
indicators (from 10 to 20 indicators) displayed on the map, the area representing
specialized objects occupies from 20% to 50% of the map sheet area, moderate
density of lines and annotations, sometimes difficult handling of relationships
between line elements and text. The process of editing map content requires the
use of specialized literature, needs to synthesize various factors, and some
supplementary tables.
Table 30
objects occupies from 50% to 70% of the map sheet area, high density of lines and
annotations, difficult handling of relationships between line elements. The process
of editing map content requires the use of specialized literature, needs to synthesize
various factors, and build supplementary tables.
Type 4: These are maps with very complex content, many complex specialized
indicators (more than 30 indicators) displayed on the map, the area representing
specialized objects occupies more than 70% of the map sheet area, very high
annotations, difficult handling of relationships between line elements. The process
density of lines and annotations, many difficulties in handling relationships between
Pair
Note: The above level applies to type KK3, levels for other types of KK calculated

Table 28

Table 31
a) Tools: hour/section

Table 29

- Input digital images, scan analog images:
1.9. Descriptive report of thematic maps

Scale 1/250,000

1.9.1. Labor quota

+ Scan analog images: High-resolution scanning; convert formats, log into

The descriptive report of thematic maps is prepared according to the following contents:

- Legal basis, necessity, and purpose, requirements for establishing the map, scope of implementation.
- Overview of natural and socio-economic conditions of the area where the map is established.
a) Content of work
- Start and end dates of the map establishment work.
- Sources of materials used and technological methods for establishing the map; specify the type of
images, image capture time used to establish the map.
- Evaluation of map quality including workload completed; completeness, detail, and accuracy of
content elements; summary data and evaluations according to the purpose of establishing the map.
- Conclusions and recommendations.
unit is commune, district, province, region.
this technique.
Type 2: These are relatively complex maps, with specialized data
- Summarizing and digitizing professional content elements.
& - Conclusion, recommendation.
b) Classification of difficulties
The difficulty level of this work is not classified but is calculated based on the "construction area" unit, which can be at the commune level, district level, provincial level, or regional level.
The unit is at the commune level, district level, provincial level, or regional level.

c) Staffing quota: 3 KS5
d) Work standard: group/report
- Commune level: 25 man-days
- District level: 40 man-days
- Provincial level: 60 man-days
- Regional level: 70 man-days
1.9.2. Material, tool, and equipment standards
a) Tools: 01 report

Table 32

b) Equipment: 01 report

Table 33

Materials

Table 34

Section 2
ESTABLISHING COMBINED MAPS, CHANGES, AND ASSESSMENTS
2.1. Preparation work: As specified in point 1.1 Section 1 Economic and Technical Standards.
2.2. Scientific editing: As specified in point 1.2 Section 1 Economic and Technical Standards.
2.3. Establishing base maps: As specified in point 1.3 Section 1 Economic and Technical Standards.
Add
2.4. Establishing satellite image plans: As specified in point 1.4 Section 1 Economic and Technical Standards.
This technique.
2.5. Establishing derived maps:
+ Analyzing thematic content elements: As specified in point 1.5 Section 1 Economic and Technical Standards.
+ Supplemental field investigation (only applicable for the current period): As specified in point 1.6 Section 1 Economic and Technical Standards.
2.6. Integrating and processing data comprehensively
2.6.1. Labor standards
- Integrating necessary specialized data and related documents.
- Analyzing and processing comprehensive data.

a) Content of work
Type 1: These are simple content maps with basic specialized data, low density, easy to represent. Comprehensive processing is straightforward.
Type 2: These are relatively complex content maps with numerous specialized data, average representation density of thematic objects. Comprehensive processing encounters some difficulties.
b) Classification of difficulties
Type 3: These are complex content maps with numerous specialized data, high representation density of thematic objects, difficult to represent. Comprehensive data processing is complex and challenging.
Type 4: These are very complex content maps with numerous and diverse specialized data, dense representation density of thematic objects, difficult to represent. Comprehensive data processing is complex and challenging and must be addressed.
Type 2: These are maps with relatively complex content, specialized data.
c) Staffing quota: 1KS4
d) Work standard: piece/man-day
Table 35
2.6.2. Material, tool, and equipment standards
Table 36
Table 37
Table 38
2.7. Establishing original author's combined map
2.7.1. Labor standards
- Summarizing and digitizing specialized content elements.

- Aligning specialized elements to ensure geographic correlation with the base elements; representing specialized elements according to the author's concept using a system of symbols designed in the editing plan (shape, color, size of symbols...), establishing the original combined map.

- Checking, correcting, and perfecting the original combined map.
a) Tools: hour/section

b) Difficulty classification:

+ Input digital images: Input images; convert formats, log image information.

Type 1: These are simple content maps with few specialized indicators displayed on the map, sparse line density and annotations, easy to handle relationships between line elements and characters. The process of editing map content rarely requires specialized literature.

Materials

Type 2: These are maps with moderate content, average line density and annotations, sometimes difficult to handle relationships between line elements and characters. The process of editing map content requires specialized literature, needs to synthesize elements, and has some auxiliary tables.

Type 3: These are complex content maps with dense line density and annotations, difficult to handle relationships between line elements. The process of editing map content requires specialized literature, needs to synthesize elements, and construct auxiliary tables.
Type 4: These are highly complex content maps with very dense line density and annotations, many difficulties in handling relationships between line elements. The process of editing map content requires specialized literature, needs to synthesize elements, and construct multiple auxiliary tables.
a) Content of work
- Compilation, digitization of specialized content elements.
c) Staffing quota: 1KS5
Table 39
2.7.2. Material, tool, and equipment standards
Table 40
Note: The above level applies to type KK3, levels for other types are calculated according to the table
Table 41
Table 42
2.8. Editing and presenting combined maps
2.8.1. Labor standards
- Correcting and editing combined maps according to the author's original combined map guidelines, designing additional symbols, presenting combined maps.
Type 2: These are maps with relatively complex content, moderate specialized
b) Difficulty classification
Type 1: These are simple content maps with few specialized indicators displayed on the map, sparse line density and annotations, easy to handle relationships between line elements and characters. The process of editing map content rarely requires specialized literature.
Type 2: These are maps with moderate content, average line density and annotations, sometimes difficult to handle relationships between line elements and characters. The process of editing map content requires specialized literature, needs to synthesize elements, and has some auxiliary tables.
supplementary tables.
Type 3: These are complex content maps with dense line density and annotations, difficult to handle relationships between line elements. The process of editing map content requires specialized literature, needs to synthesize elements, and construct auxiliary tables.
Type 4: These are highly complex content maps with very dense line density and annotations, many difficulties in handling relationships between line elements. The process of editing map content requires specialized literature, needs to synthesize elements, and construct multiple auxiliary tables.
Table 43
various factors, and build supplementary tables.
2.8.2. Material, tool, and equipment standards
Table 44
Table 45
Type 2: These are maps with moderate content, average line density and annotations, sometimes difficult to handle relationships between line elements and characters. The process of editing map content requires specialized literature, needs to synthesize elements, and has some auxiliary tables.
Table 46
- Summarizing and digitizing specialized content elements.

2.9. Reporting on combined maps, changes, and assessments

2.9.1. Labor standards
a) Tools: hour/section

The explanatory report for the thematic map is drafted according to the following contents:

- Start and end time of the map establishment work.
Scale 1/100,000

Type 3: Mountainous and coastal marsh areas with difficult travel; Satellite image and map documentation systems are inconsistent, with many changes, requiring frequent updates.

- Conclusions and recommendations

+ Scan analog images: High-resolution scanning; convert formats, log into

The difficulty level of this work is not classified but is calculated based on the "construction area" unit, which can be at the commune level, district level, provincial level, or regional level.

- Commune level: 35 man-days
- District level: 50 man-days
a) Content of work
- Provincial level: 70 man-days
- Regional level: 80 man-days
as follows:
2.9.2. Material, tool, and equipment standards
a) Tools: 01 report
Table 47
Table 48
Type 2: These are maps with relatively complex content, moderate specialized
Table 49
Nguyen Thai Lai
Type 1: These are simple content maps with few specialized indicators displayed on the map, sparse line density and annotations, easy to handle relationships between line elements and characters. The process of editing map content rarely requires specialized literature.
Type 2: These are maps with moderate content, average line density and annotations, sometimes difficult to handle relationships between line elements and characters. The process of editing map content requires specialized literature, needs to synthesize elements, and has some auxiliary tables.
supplementary tables.
on complex maps, handling the relationships between line elements is difficult. The process
of editing map content requires specialized materials, it is necessary to compile various
factors and create supplementary tables.

various factors, and build supplementary tables.
appearing on complex maps, handling the relationships between line elements is very
difficult. The process of editing map content requires specialized materials,
it is necessary to compile various factors and create many supplementary tables.
Pair
Note: The above level applies to type KK3, levels for other types of KK calculated

Table 43

2.8.2. Material, tool, and equipment quotas
a) Tools: hour/section

Table 44

- Start and end time of the map establishment work.
Scale 1/100,000

Scale 1/250,000

Table 45

+ Scan analog images: High-resolution scanning; convert formats, log into

Table 46

2.9. Comprehensive map description report, changes, and evaluation
2.9.1. Labor quotas
a) Content of work
The specialized map description report is prepared according to the following contents:
- Sources of materials used and technological methods for establishing the map; specify the type of
images, image capture time used to establish the map.
- Evaluation of map quality including workload completed; completeness, detail, and accuracy of
- Start and end dates of the map creation work.
- Conclusions and recommendations.
unit is commune, district, province, region.
this technique.
Type 2: These are relatively complex maps, with specialized data
- Summarizing and digitizing professional content elements.
- Conclusions and recommendations

b) Classification of difficulties
This work content is not classified by difficulty but is calculated based on "construction area" units being commune, district, province, region level.
- Commune level: 35 man-days
c) Staffing quota: 3 KS5
d) Work standard: group/report
- District level: 50 man-days
- Province level: 70 man-days
- Region level: 80 man-days
2.9.2. Material, tool, and equipment quotas
a) Tools: 01 report
Table 47

Table 48

b) Equipment: 01 report

Table 49

+ Scan analog images: High-resolution scanning; convert formats, log into

Nguyen Thai Lai

DEPUTY MINISTER
DEPUTY MINISTER

(Signed)
Nguyen Thai Lai