关键词: 铁路运输, 承载能力； 备用能力模型； 客运专线网络； 物理网络

Abstract:

This paper proposes the method of passenger dedicated line network carrying capacity based on physical network. It takes into account the factors of network crowd degree, service level, path choice behavior and capacity restrains. On the basis of the assumptions, the passenger volume is directly distributed to the physical network without trains. The passenger’s travel impedance is defined as the generalized cost which contians ticket price, time value and congestion cost. The level of service is defined as the ratio of actual travel impedance and minimal travel impedance. The PDL network carrying capacity model based on physical network is proposed considering the passenger travel impedance and service level. A heuristic two-stage algorithm is designed to solve the problem. Finally, a numerical example is conducted for a specified PDL network to verify the feasibility of the model.

Key words: railway transportation, carrying capacity, reserve capacity model, passenger dedicated line network, physical network