Driving Effects of Speed Increase on Development of Railway Transportation in China

The achievements in the six railway speed increases in China were summarized comprehensively following a review on the speed increases.During the processes of the speed increases,the Chinese railway made great progresses in the following fields.The railway transportation operation mode with the characteristics of high-speed,high-density and heavy-weight was developed on existing lines,and the shortage in railway transportation capacity was relieved.The marketization was accelerated with the diversity of railway transportation products.The centralized transportation dispatching was realized,and a preliminary train operation organization theory system for motor train unit was formed.The progress in freight transportation organization theory for optimization of car flow routing and direct transportation enhanced the transportation capacity.Separation between passenger and freight trains on existing lines established a reference for the operation of high speed passenger railways in China.The development of inter-city passenger transportation strengthed the competitive advantages of railways,and promoted the development of metropolitan economic circles.The advances in railway techniques and application of advanced technologies provided technical supports for the development of railway transportation.