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Jun 29, 2016
Path Planning with Information on Travel Time Reliability
Authors: Xiangfu Kong, M.S. [email protected], and Jiawen Yang, Ph.D. [email protected]Author Affiliations
Publication: CICTP 2016
Abstract
The shortest path under a given on-time arrival probability is valuable to travelers wishing to save time and avoid traffic uncertainty. Conventional reliable shortest path methods often assume that travel time follows normal distribution, but substantial evidence shows that travel time in peak periods follows lognormal distribution. This paper proposes a reliable shortest path method under the assumption that travel time in peak periods follows lognormal distribution. Due to the character of bi-objective optimization, first-order stochastic dominance was conducted to compare the priority of a set of paths. Then, an improved RSPP-LC algorithm that simplifies the path-correcting procedure was constructed and applied to a small network in Shenzhen. The computational result indicates that RSPP-LC algorithm performs well in a small-scale network.
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© 2016 American Society of Civil Engineers.
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Published online: Jun 29, 2016
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Shenzhen Graduate School, Peking Univ., Bldg. E Room 216 University Town, Lishui Rd., Nanshan District, Shenzhen 518055. E-mail: [email protected]
Shenzhen Graduate School, Peking Univ., Bldg. E Room 326, University Town, Lishui Rd., Nanshan District, Shenzhen 518055. E-mail: [email protected]
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