Influence analysis of transport capacity loss for out-of-gauge trainsrunning on double-track railway
超限车运行对双线铁路运能损失影响分析

With trains tracking in the double automatic block section as an object,taking the running characteristics of out-of-gauge trains into consideration,this paper employed cellular automata(CA) theory and proposed some concepts,such as train capacity conversion and station cellular.Furthermore,after the design of various transformation rules for trains running in double-track railway and analyses on the cellular state during the overtaking and non-intersection,it constructed simulation model and capacity loss evaluation model of trains running in double-track railway on the basis of CA theory.In addition,it simulated the train running process in the double-track sections and described the capacity loss resulted from the out-of-gauge trains running.The simulation results indicate that,when one non-intersection is reduced in the double-track section,15.2% of the carrying capacity of up direction can be saved and 6.3% of the carrying capacity of down direction can be saved.Moreover,from the overall perspective of the carrying capacity and delivery capacity in the double-track sections,18.5% of the transport capacity of up direction can be saved and 8.8% of the transport capacity of down direction can be saved.In all,the proposed method can comprehensively analyze the out-of-gauge trains’ effects on the double-track railway’s transport capacity,evaluate the capacity loss of double-track railway resulted from the out-of-gauge trains’ running,and provide the decision-making supports for the train diagram in the double-track railway sections.