Hao Yuan1, Xu Tiandong2, 3,Wu Sufeng1
(1.China Academy of Urban Planning & Design, Beijing 100037, China; 2.Shanghai Maritime University, Shanghai 201306, China; 3. University of Florida, Gainesville Florida 32611-5706, USA)

Abstract： As the network of high-speed railway develops progressively, the functionalities of regular railway start to change along railway corridors served by both high-speed and regular railways. Those changes occur in passenger and freight mixed transportation, freight- dominated transportation, and freight- only transportation. A series of conflicts between the regular railway and urban spatial layout, regular railway and functionality of city have appeared, or the original conflicts have become more serious. This paper first discusses the impacts of the initial and networking operation of high- speed railways on the regular railways, and points out the three problems facing the regular railway transportation: the conflict between regular railways and urban space, the support of regular railways to freight system, and the optimization of special regular railway lines. By summarizing the characteristics of regular railway lines and urban functionality and the level of their compatibility through case studies, the paper proposes the problems solutions accordingly.

Keywords： separate lines of passenger and freight transportation; regular railway; urban functionality; conflict and coordination