GPS/GIS Technologies for Traffic Surveillance and Management: A Testbed Implementation Study

M.G. McNally, J.E. Marca, C.R. Rindt and A.M. Koos

Institute of Transportation Studies, Research Reports, Working Papers, Proceedings from Institute of Transportation Studies, UC Berkeley

Abstract: The fundamental principle of intelligent transportation systems is to match the complexity of travel demands with advanced supply-side analysis, evaluation, management, and control strategies. A fundamental limitation is the lack of basic knowledge of travel demands at the network level. Modeling and sensor technology is primarily limited to aggregate parameters or micro-simulations based on aggregate distributions of behavior. Global Positioning Systems (GPS) are one of several available technologies which allow individual vehicle trajectories to be recorded and analyzed. Potential applications of GPS which are relevant to the ATMS Testbed are implementation in probe vehicles to deliver real-time performance data to complement loop and other sensor data and implementation in vehicles from sampled households to record route choice behavior. A flexible GPS-based data collection unit has been designed which incorporates GPS, data logging capabilities, two-way wireless communications, and a user interface in an embedded system which eliminates (or minimizes) driver interaction. The design and initial implementation tests in the ATMS Testbed are presented herein. This research is continued in PATH Task Order 4120; the final report of that project will present final system design, implementation, and field test results.

Keywords: Engineering (search for similar items in EconPapers)
Date: 2002-08-01
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