Research on the Design of High-Speed Railway Express Space-Time Network

Aiming at the “multi-hub-multi-distribution-spoke” multimodal network layout and specific transportation needs in the operation of high-speed rail (HSR) express transportation, this paper builds a space-time network with the coupling of physical network layer and task layer based on space-time network theory, aims at reducing the operating cost of HSR express transportation network and focuses on the transportation capacity and cargo timeliness of HSR. This paper constructs a space-time network design model of HSR express cargo considering “rail-rail” horizontal transfer mode and “highway-rail” vertical collection and distribution mode. In this paper, 20 transport demand cases are designed and solved by using CPLEX in Python to verify the validity of the model and provide an effective solution to the actual HSR express cargo hub-and-spoke network design problem.