国内最长地铁环线全线开通

2026年10月29日，武汉地铁12号线正式全线开通运营 1。经中国城市轨道交通协会确认，该线路为目前国内最长的地铁环线 1。这条全长59.9公里的地下线路设有37座车站，跑完全程耗时约96分钟 1。

武汉地铁12号线串联起当地7个中心城区，并衔接汉口站与武昌站两大铁路枢纽 1。乘客可在该线路上与18条既有及规划线路实现换乘 1。工程建设期间攻克了高水压环境下的长距离水下盾构等技术难题，实现了两次下穿长江和一次下穿汉江 1。作为包含国内超长过江地铁盾构隧道的重点工程，其通车将有效缓解由长江、汉江造成的跨江通勤瓶颈 1。

Wuhan Metro Line 12 officially began full operation on October 29, 2026 1. The line has been confirmed by the China Urban Rail Transit Association as the longest subway loop in China 1.

The route spans a total length of 59.9 kilometers and features 37 underground stations 1. It connects seven central urban districts in Wuhan and links two major railway hubs: Hankou Station and Wuchang Station 1. Passengers can transfer between Line 12 and 18 existing or planned lines, with a complete trip along the loop taking approximately 96 minutes 1.

Engineers overcame significant technical challenges during construction, including high water pressure and long-distance underwater shield tunneling 1. The line crosses under the Yangtze River twice and under the Han River once, incorporating some of the nation's ultra-long cross-river metro tunnels 1. The opening is expected to alleviate commuter bottlenecks caused by the need to cross these rivers 1.