CO-ORDINATES CONVERSION: FROM WGS84 TO UTM AND VICE VERSA

All Intelligent Transport Systems (ITS) which exchange data and information with other systems, whatever the level of complexity, need location referencing methods. Location referencing methods are required to provide geo-referenced information (e.g. accidents location, route suggestions). All the methods in use are based on the GPS navigation system and consequently have to be able to obtain the WGS84 co-ordinates pair for each point belonging to the area involved in the ITS application. Unfortunately, the maps currently available at low cost from local administrative offices do not provide this kind of information. It is neither difficult nor expensive to find a map, and co-ordinates like UTM or similar co-ordinates (Gauss-Boaga in Italy) can be easily associated (but not WGS84 co-ordinates). This paper aims at explaining how it is possible to convert the geographic WGS84 co-ordinates pair to the cartographic UTM co-ordinates pair (North, East) and vice versa. The exposed method is based on the result of studies which have been conducted in the city of Torino, where the available cartographic information was based on the Gauss-Boaga projection. The reported conversion formulas allow a maximum conversion error of only a few meters, adequate to a great part of ITS applications. For the covering abstract see ITRD E114174.

• Corporate Authors:

  ERTICO

  326 Avenue Louis
  Brussels,   Belgium  B-1050

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036

  VERTIS

  TORANOMOM 34 MORI BUILDING 1-25-5
  TORANOMON, MINATOKU, TOKYO 105  Japan 
• Authors:
  • CIANCAGLINI, R
• Conference:
  • PROCEEDINGS OF THE 7TH WORLD CONGRESS ON INTELLIGENT SYSTEMS
  • Location: Turin , Italy
  • Date: 2000-11-6 to 2000-11-9
• Publication Date: 2000

Language

• English

Media Info

• Features: References;
• Pagination: 8 p.

Subject/Index Terms

• TRT Terms: Conferences; Global Positioning System; Intelligent transportation systems; Location; Maps; Route guidance
• ITRD Terms: 8525: Conference; 9126: Global positioning system; 8735: Intelligent transport system; 9061: Location; 4074: Map; 8771: Route guidance
• Subject Areas: Operations and Traffic Management;

Filing Info

• Accession Number: 00931649
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Oct 3 2002 12:00AM