Regional Intercity Rail Transit:Functionalities and Construction Standard

Concerning on the lack of the design standard in the regional intercity rail transit network planning,this paper outlines the functionalities and characteristics of regional intercity rail transit by comparing the difference between a regional intercity railway system and the urban rail transit system.By summarizing the existing intercity rail transit network planning in Yangtze River Delta,Pearl River Delta,the cluster of urban areas in Zhongyuan and Chang-Zhu-Tan,the paper points out the differences in functionalities and constructionstandard of the intercity rail transit,and discusses the cause of these differences.While classifying the regional intercity rail transit services as the high speed lines,express lines and regular lines,the paper makes few suggestions on the reasonable station spacing for the rail transit services with different speed.