市区内城际客运专线与城市轨道共轨的可能性

Feasibility Study for the Inter-city Passenger-dedicated Railways to Share Common Tracks with Urban Rail Transit

从最小曲线半径的确定过程和运营组织两方面,对城际客运专线进入市区后能否与城市轨道共轨做了初步探讨。通过对高低速列车共线运行线路上最小曲线半径取值的试算分析得出:由于高低速混跑最小曲线半径取值过大,不能适应市区内建筑密集区的定线标准,故在市区城际客运专线与城市轨道共轨运行时最好采用同一速度运行,不采用混跑越行的方式。从运营方面分析了几种可能实施的方案,得出结论性意见。认为在城市轨道交通规划中,通盘考虑城际线与城市轨道的共线,有利于做好线网布局。

This article discusses the feasibility of inter-city passenger-dedicated railways to share common tracks with urban rail transit from two aspects： the process of determining the minimum cur^e radius of railways and business organization. After analyzing the minimum curve radius on the same railway line for high speed and low speed trains, it reached a conclusion that big curve radii cannot adapt to the urban area with concentrated buildings. Therefore, the optimum scheme is to adopt the same train speed for trains nmning through downtown areas. The idea of sharing common lines by passenger-dedicated trains with those of the urban rail transit is beneficial for planning urban traffic network.