Abstract
Since urban rail unmanned train is considered as one of the core technologies of Intelligent Transportation System (ITS) , how to shorten the train headway as the driven interval between unmanned trains properly is still a challenge in Communications Based Train Control (CBTC) system. In this paper, we focus on analyzing the main factors which affect the train headway in inter-station barrier tracking mode, interstation stop tracking mode and station tracking mode and present an optimization scheme for Automatic Train Control (ATC) system with mobile block technology. Simulation results show that the proposed optimization scheme can reduce train headway to improve operational efficiency and reduce costs of urban rail transit system.
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