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Vol. 166, Issue 3, March 2014, pp. 248-254

 

Bullet

 

A Method Based on Dial's Algorithm for Multi-time Dynamic Traffic Assignment
 

Rongjie Kuang, Xiaoping Guang, Yueyuan Xu, Yihai Tian

School of Traffic and Transportation Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
Tel.: 15002662402

E-mail: 343139622@qq.com

 

Received: 17 December 2013 /Accepted: 28 February 2014 /Published: 31 March 2014

Digital Sensors and Sensor Sysstems

 

Abstract: Due to static traffic assignment has poor performance in reflecting actual case and dynamic traffic assignment may incurs excessive compute cost, method of multi-time dynamic traffic assignment combining static and dynamic traffic assignment balances factors of precision and cost effectively. A method based on Dial's logit algorithm is proposed in the article to solve the dynamic stochastic user equilibrium problem in dynamic traffic assignment. Before that, a fitting function that can proximately reflect overloaded traffic condition of link is proposed and used to give corresponding model. Numerical example is given to illustrate heuristic procedure of method and to compare results with one of same example solved by other literature's algorithm. Results show that method based on Dial's algorithm is preferable to algorithm from others.

 

Keywords: Dynamic traffic assignment, Compute cost, Dial's logit algorithm, Dynamic stochastic user equilibrium, Heuristic procedure.

 

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