陕西西安：西延高铁启动时速385公里提速试验

Core Points - The Xi'an West Extension High-Speed Railway has initiated a speed test at 385 kilometers per hour [1][2] Group 1 - The speed test aims to enhance the operational efficiency of the high-speed rail network in Shaanxi province [1] - This development is part of a broader initiative to improve transportation infrastructure in the region [2]