吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (3): 755-760.doi: 10.13229/j.cnki.jdxbgxb201503011

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Traffic flow equilibrium analysis of branch network based on travel time reliability

XU Guang-ming1, WANG Ying-zi1, 2, SHI Feng1, QIN Jin1   

  1. 1.School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China;
    2.College of Civil Engineering, Hunan University, Changsha 410082, China
  • Received:2013-09-03 Online:2015-05-01 Published:2015-05-01

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Abstract: Through the description of the degradation parameters of each road section capacity, based on the long time habitual traffic equilibrium model and combining with features of the two-way branch road sections to expand the travel time functions of roads, a traffic flow equilibrium model of branch network based on travel time reliability is constructed. In order to overcome solving difficulties of the model caused by non-convexity, the general method of successive average for solving traffic distribution is broken up one after another, and a method of successive average is designed, which is implemented step by step from the origin points. Example analysis shows that under different reliability requirements, there are differences in the travelers' choices of the arterial road sections and the branch road sections, and for more conservative travelers the probability to choose the branch road sections is smaller.

Key words: engineering of communications and transportation system, branch network degradation, travel time reliability, user equilibrium, method of successive average

CLC Number: 

  • U491
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