Train No. 3603, an additional train running from Beijing to Chongqing, leaves Beijing Railway Station on Feb. 1. The train will travel 1,982 kilometers before arriving in the southwestern Chinese city. The 2018 Spring Festival travel rush, known as Chunyun, kicks off on February 1 and last till March 12. Railway authorities expect about 2.98 billion trips to be made during this year’s rush period.