Speed-Up Technologies of China’s Existing Railways

The paper describes the speed-up strategies on CR (China Railway) existing lines and rescheduling work on train working diagrams in the previous six rounds of speed-up campaigns, and it presents the speed-up technologies such as track improvement, communication and signaling, traction power supply, locomotive and rolling stocks, traffic organization and safety management. It also introduces the significant economic and social benefits generated from the train speed-increase on the existing lines as well as technical preparation provided for large-scale construction of high speed lines from the aspects of strengthening safety foundation, expanding capacity of railway network, enhancing transport efficiency, adding transport service products and improving service quality.