The Spring Festival travel rush kicked off on Feb 1. About 2.98 billion trips are expected within the next 40 days. People who work at train stations or on trains have concluded full preparations for the expected rush. As a safety precaution, police dogs have checked every corner of the stations. /Photo via VCG

Engineers have also inspected electricity as well as trains setting off from Beijing. /VCG photo

Here, to make sure the train will not freeze due to the cold weather, workers rake off snow before a train sets off in Nanchang,  east China's Jiangxi Province. /VCG photo

Chefs on a train converse ahead of a trip in  Guangzhou, south China. /VCG photo