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Title: Analysis of time- and space-domain sampling for probe vehicle-based traffic information system
Authors: Hong, J
Zhang, X
Chen, J
Wei, Z
Cao, J 
Ren, Y
Issue Date: 2007
Source: Proceedings of the 2007 IEEE Intelligent Transportation Systems Conference : Seattle, WA, USA, Sept. 30-Oct. 3, 2007, p. 836-841
Abstract: Using vehicles as probes is a flexible and low-cost way to obtain real-time traffic information. A key problem of using probe vehicles is to determine vehicle's sampling period and probe sample size. This paper addresses the sampling issue of using probe vehicles for detecting traffic information. An extended Nyquist sampling theorem based on signal processing theory is proposed to derive bounds on the sampling period and probe sample size. We also develop a Traffic & Information-collecting Simulation Platform (TISP), to simulate the traffic flows in a road network and generate probe vehicle data for analysis. We demonstrate through simulations that the traffic situations can be reconstructed from the samples without distortion according to the designed sampling period and sample size. The methods proposed in this paper can be a valuable tool for designers on planning parameters in the probe vehicle-based traffic information system.
Keywords: Highway traffic control
Information science
Information systems
Intelligent systems
Intelligent vehicle highway systems
Motor transportation
Signal processing
Time domain analysis
Traffic surveys
Vehicle locating systems
Publisher: IEEE
ISBN: 1424413966
Rights: © 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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