Abstract
In order to simulate operating characteristics of trains better in different block conditions, three kinds of models are proposed on the train motion under different signaling systems based on cellular automaton(CA) model in this paper, i.e., the train motion behavior under the fixed block, the moving-like block and the moving block conditions. Using the proposed engineering models, we analyze trajectories and space-time diagrams of railway traffic flow, calculate and compare the minimum departure interval under different conditions, and discuss the effect of the proportion and the departure sequence of different trains on mixed traffic flow. The simulation results show that the minimum headway time and the run time of moving block system are shortest, and with the low proportion of slow trains and suitable departure sequence the average run time of trains will be shorten greatly. It corresponds with dynamic characteristics of actual train flow and demonstrates that this system engineering is effective to simulate train movement, and can provide reference for organizations.
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