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Title: Estimation of average vehicle time headway for light traffic
Authors: Li, Baibing
Keywords: Intelligent transportation system
Microscopic flow characteristic
Recursive estimation
Single loop detector
Vehicle time headway
Issue Date: 2010
Publisher: © American Society of Civil Engineers
Citation: LI, B., 2010. Estimation of average vehicle time headway for light traffic. IN: Mao, B. et al. (eds.) Traffic and Transportation Studies 2010, 383, pp. 1439 - 1446.
Abstract: Vehicle time headway is one of the most fundamental microscopic characteristics of traffic flow. It affects roadway safety, capacity, and level of service. An estimated average time headway can provide an input to intelligent transportation systems for the online monitoring of roadway safety. Single inductive loop detectors are widely installed devices in road networks to regularly measure traffic volume and occupation. The purpose of this paper is to investigate the recursive estimation of average headway using the information from a single loop detector in the scenario of light traffic (e.g. during early morning or late evening period for most of the sections of motorways). A set of recursive estimation equations is developed with a nice and neat form using Bayesian analysis. The incurred computational cost for updating the estimate of average headway is kept to be a minimum. The developed method is illustrated using real traffic data. © 2010 ASCE.
Description: This conference paper was presented at the Seventh International Conference on Traffic and Transportation Studies (ICTTS) 2010 Kunming, China August 3-5, 2010 and is available at: http://ascelibrary.org/doi/abs/10.1061/41123%28383%29139
Version: Accepted for publication
DOI: 10.1061/41123(383)139
URI: https://dspace.lboro.ac.uk/2134/14856
Publisher Link: http://dx.doi.org/10.1061/41123(383)139
ISBN: 978-0-7844-1123-0
Appears in Collections:Conference Papers (Business School)

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