Chapter
Apr 26, 2012
Using Transit Vehicles to Measure Freeway Traffic Conditions
Publication: Applications of Advanced Technology in Transportation
Abstract
Recently, many public transit systems have equipped their vehicles with automatic vehicle location (AVL) systems, which periodically provide position and speed for each transit vehicle in the fleet. Although AVL is deployed for transit operations, the vehicles also provide valuable information about the traffic stream throughout the road network. In this study we develop a methodology to mine the transit AVL data and find all trips that use any portion of a pre-specified portion of a freeway. These trips are then used to measure travel time and average speed over the freeway, thereby quantifying conditions on the facility. The results are validated against concurrent loop detector data from the corridor, though the greatest benefit would be expected in areas without fixed vehicle detection.
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© 2006 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Associate Professor, Department of Civil and Environmental Engineering and Geodetic Science, The Ohio State University, Columbus, OH, 43210 and Department of Electrical and Computer Engineering, The Ohio State University, Columbus, OH, 43210. E-mail: [email protected]
Graduate Research Assistant, Department of Civil and Environmental Engineering and Geodetic Science, The Ohio State University, Columbus, OH, 43210. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.