A path-size weibit stochastic user equilibrium model with a non-zero location parameter

Guangchao Wang, Hang Qi, Anthony Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This paper investigates the effects of a non-zero location parameter on the path-size weibit stochastic user equilibrium (SUE) model. A location parameter indicates the perceived minimum potential travel cost between each origin-destination pair. Considering a non-zero location parameter reduces the perception variances route-specifically and leads to route-specific coefficients of variations (CVs). The latter is regarded as a risk measure in predicting choice decision behavior when cognition of choice outcomes and their variability happens experientially and over time. The route-specific CVs partly resolve the insensitivity to an arbitrary multiplier on route cost. Then, an equivalent probability-based variational inequality formulation is developed with a path-based self-adaptive gradient projection algorithm for the solution. Numerical examples are provided to demonstrate the impact pattern of and robustness of the algorithm.

Original languageEnglish
Title of host publicationTransportation Systems in the Connected Era - Proceedings of the 23rd International Conference of Hong Kong Society for Transportation Studies, HKSTS 2018
EditorsWeihua Gu, Shuaian Wang
PublisherHong Kong Society for Transportation Studies Limited
Pages775-783
Number of pages9
ISBN (Electronic)9789881581471
Publication statusPublished - 1 Jan 2018
Event23rd International Conference of Hong Kong Society for Transportation Studies: Transportation Systems in the Connected Era, HKSTS 2018 - Hong Kong, Hong Kong
Duration: 8 Dec 201810 Dec 2018

Publication series

NameTransportation Systems in the Connected Era - Proceedings of the 23rd International Conference of Hong Kong Society for Transportation Studies, HKSTS 2018

Conference

Conference23rd International Conference of Hong Kong Society for Transportation Studies: Transportation Systems in the Connected Era, HKSTS 2018
CountryHong Kong
CityHong Kong
Period8/12/1810/12/18

Keywords

  • Location parameter
  • Path-size weibit
  • Route choice
  • Stochastic user equilibrium

ASJC Scopus subject areas

  • Transportation

Cite this