A line planning approach based on harmony search for high-speed rail: From the perspective of service accessibility

Zekun Song, Haodong Li, Jintang Shi
2021 Journal of Intelligent & Fuzzy Systems  
Service accessibility can be used to describe the travel time of passengers between different nodes, and opportunities to get transportation services in the high-speed railway (HSR) system. Based on the traditional train line planning theory, this paper introduces the transportation service accessibility index, and propose a new nonlinear passenger train line planning model, which aims to maximize the service accessibility, as well as minimize the operational cost of railway company. The model
more » ... company. The model is transformed into a single-objective model, and then we design a harmony search algorithm to solve it. Finally, the model is validated by a numerical example. The results of this model as well as the scenarios of the single-objective models for minimizing operational costs and maximizing service accessibility are compared. From the perspective of service frequency and accessibility of each nodes, we know that the proposed method can balance conflicts between average speed between large nodes and service frequency of small and medium size nodes in high-speed railway network.
doi:10.3233/jifs-191866 fatcat:w7pnkukdkjd5tgbkcnypepqfci