Chapter
Jun 29, 2016
A Method to Improve the Route-Based Algorithm for Traffic Assignment by Eliminating Route Dependence
Authors: M. Du, Ph.D. [email protected], X. Jiang, Ph.D. [email protected], and L. Cheng, Ph.D. [email protected]Author Affiliations
Publication: CICTP 2016
Abstract
Along with the development of computation techniques, the storage memory is no longer a critical bottleneck to the solution algorithms for transportation network models. The researches of the traffic assignment problem (TAP) have focused on the large-scale problems with higher precise solutions. The route-based algorithms were reported to have a fast convergence speed to high precision. Thus, a new method is proposed to improve the route-based algorithms by eliminating the dependent routes in the set of active routes. The modification is carried out on the well-known projected gradient (PG) algorithm. According to the numerical experiments, the improved algorithm is demonstrated to be nearly two times faster than the original version, and is more space-saving. Other features are also analyzed from the results.
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Published In
CICTP 2016
Pages: 2286 - 2296
Copyright
© 2016 American Society of Civil Engineers.
History
Published online: Jun 29, 2016
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Affiliations
College of Civil and Transportation Engineering, Hohai Univ., 1 Xikang Rd., Nanjing, JS 210098, China. E-mail: [email protected]
School of Transportation, Southeast Univ., 35 Jinxianghe Rd., Nanjing, JS 210096, China. E-mail: [email protected]
School of Transportation, Southeast Univ., 35 Jinxianghe Rd., Nanjing, JS 210096, China. E-mail: [email protected]
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