A path-size weibit stochastic user equilibrium model
Songyot Kitthamkesorn and
Anthony Chen
Transportation Research Part B: Methodological, 2013, vol. 57, issue C, 378-397
Abstract:
The aim of this paper is to develop a path-size weibit (PSW) route choice model with an equivalent mathematical programming (MP) formulation under the stochastic user equilibrium (SUE) principle that can account for both route overlapping and route-specific perception variance problems. Specifically, the Weibull distributed random error term handles the identically distributed assumption such that the perception variance with respect to different trip lengths can be distinguished, and a path-size factor term is introduced to resolve the route overlapping issue by adjusting the choice probabilities for routes with strong couplings with other routes. A multiplicative Beckmann’s transformation (MBec) combined with an entropy term are used to develop the MP formulation for the PSW-SUE model. A path-based algorithm based on the partial linearization method is adopted for solving the PSW-SUE model. Numerical examples are also provided to illustrate features of the PSW-SUE model and its differences compared to some existing SUE models as well as its applicability on a real-size network.
Keywords: Stochastic user equilibrium; Random utility model; Weibull distribution; Logit model; Path-size weibit model (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (34)
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DOI: 10.1016/j.trb.2013.06.001
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