Passengers travel on a new high-speed sleeper train on the Beijing-Shanghai line, July 1, 2017. China has started using new double-decker sleeper trains that are reportedly comfortable, able to meet diverse requirements and better protect passenger’s privacy as each seat is designed like an independent compartment. The operating speed of the trains is 250 kilometers per hour and there is room onboard for 880 passengers. (Photo/VCG)
