关键词: 公路运输, 收费费率, 双层规划模型, 养护成本, 模拟退火算法

Abstract:

Highway would face problems such as traffic congestion and maintenance cost rise of road infrastructure after highway toll phase expires or government repurchases. Toll extension but at a lower rate out of road conservation purpose is considered to be one feasible approach to mitigate the financial burdens and dissolve the social media pressure. From this point of view, a bilevel programming model is built. On the upper level, road network manager (government) as the leader maximizes the network traffic load and minimizes the total network delay; the lower bound of charging which ensures the reasonable profits and maintenance costs of network operator, as well as the upper bound of charging determined by the road users affordability is also considered. On the lower level, User Equilibrium (UE) model is built in full account of route choice heterogeneity and the congestion effect on traffic demand distribution. Simulated Annealing (SA) is used to validate the model and find the reference toll rate.

Key words: highway transportation, toll rate, bilevel programming model, maintenance costs, simulated annealing algorithm