The freight train from Xining to Golmud has two staff members. According to the relevant public information, the freight locomotive of Xining Locomotive Depot of Qinghai-Tibet Railway Company is operated by a driver and an assistant driver at the same time, and it needs to pass through three relay points in the transportation process, which not only affects the transportation efficiency, but also avoids the occurrence of fatigue driving. Xining Freight Station is the largest freight marshalling station in Qinghai section of Qinghai-Tibet Railway, which is mainly responsible for the marshalling, disintegration, adaptation and arrival and departure of trains in Lanzhou, Golmud and Datong.