纽约地铁快慢线并行模式对带状城市轨道交通线路布置的启示

摘要

With concerning the distributions in urban functional areas and population of New York City (NYC), the characteristics of the parallel local/express lines of New York subway were analyzed. The features of ribbon-form city in China are similar to NYC’s and there are some similar problems of the subway lines in these cities. Therefore, based on the experience of NYC subway, the possibilities and practical implements of the parallel local/express lines for urban rail network in the ribbon-form cities were discussed in order to solve the problems of overlong lines in these cities of China.%　　纽约城市居住区与核心区分布明显，通勤客流具有明显的潮汐特征，因此，其城市轨道交通线路布置呈现出联接居住区和城市核心区的带状分布特点。同时，为了适应早晚高峰的突增客流，部分通道内采用了快慢线并行的线路设置方案来提高运能。我国带状城市的功能区分布和城市形态与纽约的城市形态有类似之处，带状城市的地铁线路有能力过饱和、服务质量下降等问题，但一味增长主干地铁长度会带来相应的弊端。本文结合纽约地铁快慢线并行的线路设置模式，提出我国带状城市可以借鉴纽约地铁快慢线的设置方法，在客流量较大的通道上运用快慢线并行的线路布置方案，以解决带状城市轨道交通超长线带来的问题。