Development of a road traffic measure evaluation model considering travel time reliability

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420509
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Civil engineering project/Traffic engineering
• Research Institution: Hokkaido University
• Principal Investigator: UCHIDA KENETSU 北海道大学, 工学研究院, 准教授 (90322833)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 時間信頼性 / 便益評価 / 交通ネットワーク / 利用者均衡

Outline of Final Research Achievements

This study developed a benefit estimation model that considers travel time reliability. The model is based on a network model that is formulated as a utility maximization problem with constraints. Since this utility maximization problem has the same equilibrium conditions as a multi-class user equilibrium traffic assignment problem with elastic demand, both transport demand forecasting and benefit estimation can be carried out in the same framework. By assuming a certain form for the utility function, the road network model can estimate the prohibitive price, so the proposed method is convenient for estimating opportunity loss due to disruption of origin-destination connection in the event of a natural disaster. Furthermore, the values of travel time and travel time reliability are estimated endogenously in the proposed method; thus, changes in these values can be reflected in the benefit estimation. A numerical experiment demonstrates the method presented in this study.

Free Research Field

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