A Comparison between Gradient Projection Methods For Traffic Assignment Problem

سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,886

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شناسه ملی سند علمی:

ICCE09_1273

تاریخ نمایه سازی: 7 مهر 1391

چکیده مقاله:

Recently, gradient projection (GP) has been extended as efficient algorithms for solving the traffic assignment problem (TAP). In this paper, two distinguished GP methods for TAP are investigated. Theyare an algorithm to apply Bertsekas`s GP method and an algorithm to apply Rosen's GP method. They confront the problem in the same way, but with various descent directions and step sizes. The efficiency of the algorithms is compared using large-scale test networks. Algorithms are developed ina same platform and compared based on the computational efforts for reaching given accuracies. The results show that the algorithm using Bertsekas`s GP converges more rapidly than another using Rosen's GP.

نویسندگان

Babak Javani

Ph.D. student, School of Civil Engineering, University of Tehran, Tehran

Abbas Babazadeh

Assistant professor, School of Civil Engineering, University of Tehran