SHENYANG, Jan. 23 (Xinhua) --To ensure safe operation during the Spring Festival travel season in the frigid zone of northeast China, engineers from the Shenyang Railway Bureau use the rail flaw detection vehicle, dubbed "Rail Doctor", to check the rail's situation.
During the Spring Festival travel season, tasks of the "rail doctors" have surged.
Spring Festival, or Chinese Lunar New Year, falls on Feb. 1 this year.
Produced by Xinhua Global Service
