Model for Road Network Stochastic User Equilibrium Based on Bi-level Programming under the Action of the Traffic Flow Guidance System

With application of the traffic flow guidance system (TFGS), some travelers can choose their paths according to both the guidance information and their experience. In this paper, the benefit-cost of the traffic flow guidance system and the random users' equilibrium under the action of the traffic flow guidance system are combined. Based on the relationship between the effects of traffic guidance and the construction cost, the optimization plan is established. The relationship between the optimization system and the random users under the action of the traffic flow guidance system is described using the bi-level programming system, and an arithmetic based on the sensitivity analysis is presented. © 2007 China Association for Science and Technology.