Bullet train upgrade helps boost travel rush

China Railway Shanghai Group has upgraded its bullet train maintenance system to guarantee safer journeys during the ongoing Spring Festival travel rush, a time of family reunions that makes for the busiest annual transportation frenzy in the country.

"Our maintenance techniques are leading the world," said Qian Jianqiang, deputy chief of the Shanghai Depot of EMU (electric multiple units), the group's maintenance center. "It guarantees safe trips as the speed can reach 350 kilometers per hour."

The upgrade involves improving real-time monitoring through data management, staff rearrangement and enhanced maintenance.