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no. 06-07 (2000) >


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Title :Sensitivity Analysis for Stochastic User Equilibrium Network Flows : A Dual Approach
Title alternative :交通ネットワーク確率均衡の感度分析
Authors :應, 江黔
宮城, 俊彦
Issue Date :20-Sep-2000
citation :岐阜大学地域科学部研究報告
Abstract :Recently extensive studies have been conducted on the sensitivity analysis for the Wardropian equilibrium modeling of traffic networks. Here we present a method for sensitivity analysis for network flows at stochastic user equilibrium. Our method is developed from a dual formulation of the stochastic user equilibrium analysis. By adopting Dial's algorithm for stochastic traffic assignment, we are able to formulate a computationally efficient link-based algorithm for the sensitivity analysis. Since the Wardropian equilibrium in a traffic network is an extreme case of stochastic user equilibrium with θ→∞, θ being a dispersion parameter in the expected utility function for stochastic route choice, the method presented here can also be used for the sensitivity analysis for the Wardropian equilibrium by taking θ large enough.
Type Local :紀要論文
ISSN :1342-8268
Appears in Collections:no. 06-07 (2000)