新建城际铁路设计速度一般为每小时120至200公里

Core Viewpoint - The National Development and Reform Commission (NDRC) has issued guidelines to promote the healthy and sustainable development of intercity railways, emphasizing the need for a reasonable, efficient, and economically viable intercity rail network to support high-quality urban integration. Group 1: Intercity Railway Development - Intercity railways serve as a key passenger transport method between major cities within urban clusters, with the backbone network in four major urban clusters nearing a total length of 1,800 kilometers, achieving operational efficiency and enabling 1 to 2-hour connectivity between major cities [1][2] - New intercity railways are required to have a minimum bidirectional passenger flow density of 15 million trips per year, with design speeds generally ranging from 120 to 200 kilometers per hour [1] Group 2: Operational Management - The guidelines emphasize comprehensive management throughout the planning, construction, and operation of intercity railways, highlighting three operational priorities: utilizing existing resources, promoting diverse operational entities, and focusing on passenger needs [2] - The NDRC encourages local governments to collaborate with railway companies to maximize the use of existing railway capacity for intercity services and supports various operational models tailored to local conditions [2]