Study On Subway Operation Organization Scheme Based On Turn-back Efficiency Optimization

With the growth of our urban mass transit industry, people’s requirements on the efficiency of operational organization become increasingly higher. Under the condition of not changing any existing line facilities, how to improve the operation efficiency has become one of the important research topic for many metro operation managers. The terminal turn-back capacity is a key factor restricting the efficiency of the running operation. So how to improve the turn-back capacity for operation efficiency has important research significance.In order to improve the turn-back efficiency of terminal station and optimize the transportation capacity resources deployment, Guangzhou Metro line 6 passenger transportation as a background, find out the best transportation plan for high energy efficiency ratio by analyzing various subway transportation organization methods. The main research contents include:(1) According to transportation data, analyze the characteristics of passenger flow in the early and late peak hours of line 6 from Xunfenggang to Xiangxue section deeply. And analyze the characteristics of the main station layout of line 6 based on three kinds of the station turn-back lines configuration models in detail.(2) Analyze the operation principle and efficiency characteristics of various sizes train routing modes, and research the calculation method of driving distance and transport capacity, then put forward several suggestions about the best train routing mode in specific case.(3) Put forward the disequilibrium transportation solutions for relieving the one-way short-term peak passenger transportation stress. By optimizing the method of unbalanced traffic organization it could enhance capacity of one-way transportation in a short time.(4) Study on the train in the station turn-back operating process in detail, analyze the key steps and put forward suggestions for the optimization starting from the each operation step of cabin crew.(5) Identify the train in security risks existing in the turn-back process, according to the operating principles of "safety first, efficiency second", put forward a number of concrete security prevention and control measures.(6) According to the characteristics of passenger flow of Guangzhou Metro line 6, study on how to optimize the transportation capacity resources deployment by respectively applying various sizes train routing plan and unbalanced traffic organization plan, and put forward the best transportation plan for high energy efficiency ratio.It could achieve the goal of enhancing the capacity of train transportation without additional hardware cost by optimization of train operation. The research results have certain reference values for the operating managers and new line project engineers.