Reliability-based stochastic transit assignment: Formulations and capacity paradox

Y. Jiang and W.Y. Szeto

Transportation Research Part B: Methodological, 2016, vol. 93, issue PA, 181-206

Abstract: This study develops link-based and approach-based variational inequality (VI) formulations for the frequency-based transit assignment with supply uncertainty, where link flows and flow on each outgoing link from each node are decision variables, respectively. Both the mean and variance of travel cost, including the covariance of in-vehicle travel costs, are captured in both formulations. To address the covariance of in-vehicle travel costs between different links on the same transit line, an augmented route-section network representation is developed, allowing us to apply the dynamic programming method to compute the value of the mapping function of the VI. The approach-based formulation can be solved by an extragradient method that only requires mild assumptions for convergence. It is found that the number of links carrying flow and equilibrium cost can be underestimated if supply uncertainty is not considered.

Keywords: Frequency-based transit assignment; Reliability-based user equilibrium; Variational inequality; Braess and capacity paradox (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (14)

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DOI: 10.1016/j.trb.2016.06.008

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