关键词: 可交易电子券方案, 用户均衡, 市场交易费用率, 公平性

Abstract: Based on the reference dependence model in the loss aversion theory, we construct the perceived travel cost function. With the consideration on transaction cost ratios in the credit cards market, we develop the variational inequality model under the conditions of user equilibrium and market equilibrium for the traffic network with fixed demand. By some simulation experiments, we illustrate that according to the adjustment of the market transaction cost ratio, government can affect the credit trading market and promote the equity of tradable credit schemes. Furthermore, we measure the equity of tradable credit schemes by the weighted average of the travel cost ratio fluctuation of all the OD pairs in the traffic network. A utility function is proposed to balance the reduction of total system cost and the requirement of increasing the equity of tradable credit schemes. The optimal solution under different conditions can be obtained by changing the weights of the utility function.

Key words: tradable credit scheme, user equilibrium, traction cost ratio, equity