Passengers prepare to board a train at Fuyang West Railway Station in Fuyang City, east China's Anhui Province, Jan. 27, 2023.As of the end of last year, China's railways in service had stretched to a total length of 155,000 km, within which the operating length of the high-speed network had reached 42,000 km, according to the group.　　Fixed-asset investment in China's railways reached 710.9 billion yuan (about 105 billion U.S.