市郊铁路——北京轨道交通中急需发展的运输方式

SUBURBAN RAILWAY——A NECESSARY PART TO THE BEIJING MASS TRANSIT

本文通过分析市郊铁路的作用及优点，介绍了国外现代化大城市的市郊铁路网状况及北京市郊铁路的状况。近年来北京的城市结构已发生了很大变化，主要表现在市区范围扩大、城区人口逐渐减少、近郊人口猛增，城区与近郊之间的客运量激增，指出加强北京市郊铁路建设将有利于缓解北京交通拥挤状况，并会促进北京市的经济建设。

This article analyses the functions and the advantages of the suburban railway,and introduces the situations of two modern big cities∶Paris and Beijing.In recent years,the structure of Beijing City has been changed greatly,expressed mainly on the enlargement of the scope of urban district,decreasing gradually of population in the city proper,increasing rapidly of population in the suburbs,and violent increasement of passenger traffic capacity between the city proper and the suburbs.And it is pointed out that the construction of the suburban railway in Beijing will alleviate the situation of the transportation congestion and promote the economic construction in Beijing.