关键词: ATIS, 双层规划模型, 信息定价, 信息质量

Abstract: In this paper, we investigate the best strategy for the Advanced Traveler Information Systems(ATIS)service provider when the information pricing of their service should be decided in bi-modal transportation networks. In a bi-modal transportation network, many factors can influence the market scale of ATIS, and the cost of providing ATIS services are usually related to both the information quality and the market scale. Thus, we treat both information price and information quality as decision variables in a bi-level program, which is composed of a mixed user equilibrium model and a profit model. Afterwards, the numerical analyses are carried out in the bi-modal traffic network of Hongkou district in Shanghai, whose OD trip volumes are calculated by the OD matrix estimation in TransCAD with the link flow we survey. The related economic problems are discussed. Finally, the optimal solution of the bi-level program is obtained by a hybrid algorithm, consisting of the Particle Swarm Optimization(PSO)algorithm and a MSAF algorithm. The model and the algorithm can be used to obtain the best strategy for the ATIS service provider.

Key words: ATIS, information pricing, bi-level program, information quality