A PARAMETER CALIBRATION TECHNIQUE FOR TRAVEL COST FUNCTON IN TRAFFIC ASSIGNMENT

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概要

• 論文の詳細を見る

• A travel cost function is critical in traffic assignment in that the route choice behaviors of users could be described by the function. Parameter calibration of the function is to adjust parameters in a model so as to represent local traffic conditions. In order to describe correctly the real travel patterns in the model, we should calibrate the parameters by observed information. This paper presents a calibration method for travel cost function, which widely used in traffic assignment. It is based on bi-level programming such that the upper level is to minimize the difference between observed link flows and estimated ones computed from traffic assignment, while the lower is to describe the route choice behaviors of users on the transportation network. A solution algorithm will be given and through a numerical example it is also shown that multiple solutions is existed in such problem.

• Eastern Asia Society for Transportation Studiesの論文

著者

• NAM Doohee

  Dept. of Information Systems Engr., Hansung University

• CHOI Changho

  Dept. of Transportation & Logistics, Chonnam National University

• LIM Yongtaek

  Dept. of Transportation & Logistics, Chonnam National University

• KANG Mingu

  Dept. of Transportation & Logistics, Chonnam National University

関連論文

• A PARAMETER CALIBRATION TECHNIQUE FOR TRAVEL COST FUNCTON IN TRAFFIC ASSIGNMENT

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