5月15日上午，随着55103次检测列车上线运行，沪渝蓉高铁武汉至宜昌段启动联调联试，为全线年内开通运营作 准备。沪渝蓉高铁武宜段位于湖北省境内，起自武汉市，经天门市、荆门市，终至宜昌市，正线全长313公里，设 计时速350公里。 沪渝蓉高铁武宜段东连沪渝蓉高铁合肥至武汉段，西接沪渝蓉高铁宜昌至涪陵段，在武汉枢纽与汉宜铁路衔接， 在宜昌通过在建的宜昌至兴山高铁与郑渝高铁相连。 沪渝蓉高铁武宜段建成通车后，将大幅压缩武汉至宜昌间的时空距离，旅行时间从目前的2小时缩短至1小时左 右，推动沿线钟祥、京山、当阳等多个城市迈入高铁时代；另一方面，宜昌至兴山高铁开通后，沪渝蓉高铁武宜 段通过与郑渝高铁的衔接，武汉至重庆的铁路旅行时间也将压缩至4小时左右。 此时，这个"金三角"再次成为湖北经济增长的关键一极。以汉襄宜为顶点、江汉平原为腹地，合围而成的三角 区，被认为是湖北省乃至全国经济地理版图中的黄金地带。今年，湖北省政府工作报告提到"打造汉襄宜协同创 新'金三角'"，此后发布的《关于实施区域联动战略整体提升支点区域协同力的行动方案》提出，将汉襄宜"金三 角"作为推动区域协调发展的主战场。 解读：沪渝蓉高铁武宜段于2021 ...

Core Points - The launch of the first testing train 55103 marks the start of comprehensive testing for the Wuhan to Yichang section of the Shanghai-Chongqing-Rongcheng High-Speed Railway (referred to as "Wuhan-Yichang High-Speed Railway") [1] - The Wuhan-Yichang High-Speed Railway spans 313 kilometers with a design speed of 350 km/h, featuring 88 new bridges and 25 tunnels, with bridges and tunnels accounting for 85% of the total length [3] - The project began construction in September 2021 and is expected to complete track laying by January 2025, followed by a static acceptance phase in April 2025 [3] Group 1 - The comprehensive testing phase includes dynamic acceptance, covering joint debugging, dynamic testing, and operational trials [5] - The China Railway Wuhan Group and construction units will conduct daily adjustments on the "four electrical" systems, ensuring smooth testing [5] - The Wuhan-Yichang High-Speed Railway will significantly reduce travel time from 2 hours to approximately 1 hour, enhancing connectivity for cities along the route [7] Group 2 - After the dynamic acceptance is completed, the world's fastest high-speed train CR450 will conduct operational assessment tests on this line [7] - The railway will connect with the ongoing Yichang to Xingshan high-speed railway and the Zheng-Chongqing high-speed railway, further reducing travel time from Wuhan to Chongqing to around 4 hours [7]