Three Dimensional Vehicle Positioning in Multi-Level Road Networks

Multi-level road networks, such as grade-separated interchanges and elevated roads, have been increasingly used to solve traffic congestions in large cities. Although they can be represented and visualized in a transport network database, at present it is difficult to guide a vehicle through such a multi-level road network because the existing vehicle positioning and navigation system is mainly 2D based. When navigating a vehicle in a multi-level road network, identifying vehicle road level location is of equal importance to identifying its planar location. Existing GPS and altimeters cannot determine the vertical location of a vehicle accurately in a multi-level road network. This paper proposes to use inclinometer or gyroscope together with a 3D GIS-T database which includes road elevation or slope, to position vehicles vertically for vehicle navigation in 3D multi-level road networks.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos; References; Tables;
  • Pagination: 10p
  • Monograph Title: ITS Connections: Saving Time. Saving Lives

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Filing Info

  • Accession Number: 01145061
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 23 2009 11:11AM