基于不同目标下的城际铁路列车开行频率优化

Optimization Research on the Operation Frequency of Intercity Trains under Different Targets

摘要:

研究运营企业效益最大化和社会总成本最小化2个不同目标条件下城际铁路开行频率的优化，建立双层规划模型，上层分别以铁路企业效益最大化和社会总成本最小化为目标，下层以开行方案作为变量、以用户均衡理论建立模型，利用模拟退火算法得出城际运输通道中不同交通方式的分担率，并求出不同等级城际列车的客流量及开行频率.通过算例进行验证，对比和分析了2种目标下的城际列车开行频率方案，为城际通道客运优化管理提供理论参考.

关键词:城际客运通道; 开行频率; 企业效益; 社会总成本; 双层规划模型

Abstract:

A bi-level programming model was established, of which the upperlevel pursues the maximum railway enterprise’s benefits and the minimum social cost respectively, and the lowerlevel was modeled based on users equilibrium theory, to figure out sharing rate of different transport modes, passenger flow of differentranks intercity trains and operating frequency of trains with different dwell plans and objectives. The bilevel model was solved by simulated annealing (SA) algorithm. In the end, this paper contrasted and analyzed the operating frequency of intercity trains under the two different objectives respectively by a sample to provide theoretic support for optimal management of railway in intercity passenger corridor.

Key words:intercity passenger corridor; operation frequency; enterprise benefits; total social cost; bi-level programming model