Royal Thai Survey Department

Royal Thai Survey Department
Name	Royal Thai Survey Department
Native name	กรมแผนที่ทหาร
Formed	1885
Headquarters	Bangkok
Jurisdiction	Thailand
Parent agency	Ministry of Defence (Thailand)

Royal Thai Survey Department is the national mapping and geodetic agency historically responsible for topographic surveying, cartography, and geospatial infrastructure in Thailand. It traces origins to late 19th-century modernization efforts under King Chulalongkorn and has interacted with regional programs such as the ASEAN spatial initiatives and global frameworks like the United Nations geospatial activities. The department has cooperated with military, civil, and international organizations including the Royal Thai Armed Forces, United States Geological Survey, and International Federation of Surveyors.

History

The agency was established during the reign of King Chulalongkorn as part of reforms linking the Ministry of Defence (Thailand) and royal modernization projects that also involved figures associated with the Bowring Treaty era and diplomatic ties to United Kingdom and France. Early surveys were influenced by European practices from the Ordnance Survey and collaboration with foreign surveyors who had worked on projects in Siam. Twentieth-century developments connected the department with regional boundary delineations involving neighboring states such as Burma (now Myanmar), Laos, and Cambodia and treaties like the Franco-Siamese Treaty of 1893. During World War II the department’s mapping efforts interfaced with operations of the Imperial Japanese Army and later with United States technical assistance during the Cold War era, linking to programs by the United States Geological Survey and the Royal Thai Air Force. Postwar modernization expanded work with institutions such as the Asian Development Bank and participation in multinational geospatial standards set by the International Organization for Standardization and the United Nations Committee of Experts on Global Geospatial Information Management.

Organization and Structure

The department operates within the Ministry of Defence (Thailand) and coordinates with branches including the Royal Thai Army, Royal Thai Navy, and Royal Thai Air Force for defense-related mapping. Its internal divisions typically mirror international surveying agencies: a geodesy division linked to initiatives by the International Association of Geodesy, a cartography division interacting with the International Cartographic Association, and a hydrographic liaison that communicates with the International Hydrographic Organization. Administrative relationships extend to national bodies such as the Royal Thai Survey and Mapping Organization (historical partnership), provincial administrations, the Bangkok Metropolitan Administration, and academic partners like Chulalongkorn University and Kasetsart University. Leadership has included senior officers with training from institutions such as the United States Military Academy and the Royal Military College, Duntroon.

Responsibilities and Functions

Mandated tasks include production of topographic maps and cadastral frameworks used by agencies such as the Department of Land Transport (Thailand), the Department of Highways (Thailand), and the Department of Mineral Resources (Thailand). The department contributes to national spatial data infrastructure efforts aligned with the National Statistical Office of Thailand and regional initiatives by ASEAN and the Greater Mekong Subregion. It provides geodetic control for projects by the Electricity Generating Authority of Thailand and disaster mapping support for the Department of Disaster Prevention and Mitigation (Thailand) and humanitarian actors like United Nations Office for the Coordination of Humanitarian Affairs. The department also assists in boundary demarcation tasks involving bodies such as the Ministry of Foreign Affairs (Thailand) and treaty panels associated with the Anglo-Siamese Treaty era legacies.

Cartography and Mapping Products

Products have ranged from colonial-era trigonometrical sheets to contemporary digital topographic maps, orthophotos, and thematic cartography used by the Office of the National Economic and Social Development Council and conservation agencies like the Department of National Parks, Wildlife and Plant Conservation (Thailand). Historic map series align with global collections including the Library of Congress and mapping standards by the International Cartographic Association. Modern deliverables include GIS-ready datasets compatible with platforms such as ArcGIS and products interoperable with OpenStreetMap and international nautical charts coordinated through the International Hydrographic Organization.

Geodetic and Surveying Technologies

The agency adopted triangulation and theodolite methods early on and later integrated technologies from programs promoted by the International Association of Geodesy, including global navigation satellite systems (GNSS) like GPS (Global Positioning System), precise leveling, total stations, and satellite remote sensing systems provided by agencies such as NASA and the European Space Agency. It engaged with international standards like the World Geodetic System 1984 and participated in campaigns comparable to the International GNSS Service. Cartographic production embraced photogrammetry techniques used by firms linked to the Royal Thai Air Force aerial survey units and commercial partners from Japan and France.

Notable Projects and Contributions

Noteworthy projects include national triangulation networks that supported infrastructure programs such as expressway construction tied to agencies like the Department of Highways (Thailand), cadastral mapping for land titling reforms interacting with the Department of Lands (Thailand), and floodplain mapping used in coordination with Bangkok Metropolitan Administration flood mitigation. The department’s archives have contributed to historic research in collaboration with institutions such as the National Archives of Thailand and academic studies at Thammasat University. Internationally, it contributed to regional mapping efforts in the Mekong River Commission and shared data with multilateral lenders including the World Bank during development projects.

Training, Education, and Research

Training programs have been offered in partnership with military academies such as the Chulachomklao Royal Military Academy and civilian universities including King Mongkut's University of Technology Thonburi. Research collaborations include joint studies with the Asian Institute of Technology and exchanges with the International Federation of Surveyors and regional centers like the UNESCAP geospatial units. Professional development emphasizes standards from bodies such as the International Cartographic Association and certifications comparable to those recognized by the Royal Institution of Chartered Surveyors.

Category:Government agencies of Thailand Category:Cartography by country Category:Geodesy