Abstract: To overcome the shortcomings in traditional method of pricing traffic information under single-objective route guidance, mixed-equilibrium model was established on the basis of a weighting of travel time and travel cost, the models were estimated under double -objective route guidance and validated with the numerical study. Comparative evaluation of the pricing strategy which induced by the single-objective and double-objective route guidance ,then the pricing result was given under the induction of double-objective route guidance，Numerical result shows that the single-objective route guidance, compared to the double-objective route guidance, will enhance the feasible region of traffic information pricing when traffic information quality is bigger than 0.1, finally, the respective interests of the profits of information users, information providers and the traffic manager who as the decision-making host separately are considered, ultimate price of the traffic information was 1.3 yuan, 2.6 yuan and 1.8 yuan. The results indicate that established mixed-equilibrium model can completely and effectively pricing traffic information under double -objective route guidance.

Key words: traffic economics; pricing strategy; variational inequality；double- objective route guidance; travel disutility function;

Author resume: Zhu Quan (1982- ),   male,  engineer,  86-871-3115956,  zhuquan6260@hotmail.com.

0   引言

随着信息技术的迅速发展,在交通网络中,为出行者提供实时交通信息已经变成了现实，交通信息的定价策略研究^[1～4]也因此成为交通科学领域的一个研究热点。在现有的研究中，Hong ^[1－2]假定出行者的路径选择是以出行时间最小作为目标的，并提出了混合均衡模型来平衡交通管理者，出行者，信息提供者三方利益，从而对交通信息定价策略进行了研究。本文假定出行者在权衡考虑出行时间和出行费用后制定路径决策，并在满足交通管理者、具有信息的出行者、信息服务提供者三方收益均为非负的前提下，与单目标路径诱导下交通信息定价策略进行比较分析，找出两者之间的差异变化。