Sensitivity Analysis of Stochastic User Equilibrium in a Multi-Modal Network

다수단 확률적 사용자 균형의 민감도 분석

  • 김병관 (한국건설기술연구원 첨단교통연구실) ;
  • 임용택 (전남대학교 교통물류학부)
  • Received : 2010.04.08
  • Accepted : 2010.08.12
  • Published : 2010.10.31

Abstract

This study presents a sensitivity analysis method for stochastic user equilibrium of multi-modal network flows. We consider a multi-modal network consisting of a road network for passenger cars physically separated from a transit network for public transport. We first establish a sensitivity analysis method with respect to arbitrary link parameters and perform a sensitivity analysis with respect to link capacity and transit line frequency as practical link parameters. Next, We establish a sensitivity analysis method and perform the sensitivity analysis with respect to modal split by passenger car and public transit. As with the elasticity of economics, these results can be important information for analyzing changes in travel behavior due to the changes in operation and policy of transportation facilities, as well as for analyzing the effects of these operational changes and policies. These results also can be utilized as a tool to constitute a multi-modal network design problem by using cooperative game theory.

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