Liang Ming is a crossing worker in the Xiaotang Crossing Work Area of the Sanshui Line Workshop of the Zhaoqing Public Works Section of the Guangzhou Railway Group. More than 60 trains pass through the crossing every day, and an average of more than 400 cars pass through it every hour.
During the Spring Festival travel season, the density of people and vehicles on the highway further increases. During work, they are not allowed to chat with others, read newspapers or listen to the radio. The day shift and night shift start over and over again.