首条跨京冀城市轨道交通线路开启空载试运行

8月25日，北京市重大项目办、京投轨道公司负责的北京轨道交通22号线（红庙—平谷）正式开启空载试运行，这是首条横跨京冀两地的城市轨道交通线路 1。该线路全长约79.1公里，共设车站20座，其中北京段15座、河北段5座 1。预计今年底基本具备开通条件，将实现河北三河与北京轨道交通网无缝衔接 1。

该线路高架段最高时速达160公里，地下段达120公里 1。从河北燕郊镇到北京城市副中心最快仅需9分钟，到北京CBD核心区红庙站最快约28分钟 1。空载试运行分两个阶段实施：第一阶段开展八大系统综合联调与功能测试，第二阶段开展“跑图”试运行 1。

According to the Beijing Major Projects Construction Headquarters Office and Beijing Infrastructure Investment Rail Transit Co., Ltd., Beijing Rail Transit Line 22 (Hongmiao-Pinggu) officially began its empty-load trial operation on August 25 1. As the first urban rail transit line spanning Beijing and Hebei, the route will achieve seamless integration between Sanhe in Hebei and Beijing's rail transit network 1. The line has a total length of approximately 79.1 kilometers and includes 20 stations, with 15 in the Beijing section and 5 in the Hebei section 1. It is expected to be basically ready for opening by the end of this year 1.

The line features a maximum speed of 160 kilometers per hour on elevated sections and 120 kilometers per hour in underground segments 1. Consequently, the commute from Yanjiao Town in Hebei to the Beijing Sub-center will take as little as nine minutes, while reaching Hongmiao Station in the core area of Beijing's Central Business District will take about 28 minutes 1. The empty-load trial operation is implemented in two phases 1. The first phase involves comprehensive joint debugging and functional testing of eight major systems, followed by a second phase dedicated to "map-running" trial operations 1.