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Investigation of GPS and GIS for Traveler Information

Description: This work is presented in the format of two nearly independent theses. The first thesis is that several advanced technologies, such as Geographic Information Systems (GIS) and Global Positioning System (GPS), can be combined in a distributed computing environment to deliver traveler information. The second thesis is that a maximum likelihood approach can be used to solve the GPS positioning problem. The report describes and documents the architecture used to construct the client and server systems that operate in a distributed computing environment to deliver real-time congestion and probe vehicle position information. In conjunction with the appendices, the report also provides a detailed prescription for positioning using the GPS satellite constellation.

  • Date Published: March, 1994
  • Publication Number: WA-RD 332.1
  • Last Modified: October 25, 2007
  • Authors: Daniel J. Dailey, Po-Jung Li.
  • Originator: Washington State Transportation Center (TRAC)
  • # of Pages: 65 p., 1,387 KB (PDF)
  • Subject: Advanced driver information systems, Client server computing, Data processing, Geographic information systems, Global Positioning System, Location, Maps, Passenger information systems, Probe vehicles, Real time control, Route guidance, Traffic congestion.
  • Keywords: GPS, GIS, traveler information, maximum likelihood, digital maps, distributed computing, client server.
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This abstract was last modified April 29, 2008