Considering the characteristics and conditions of railway hub reconstruction,this paper introduces the optimization and improvement scheme for the selection of CTCS-3/CTCS-2 train control level transition points and the construction of vital data network when Zhangjiajie-Jishou-Huaihua Railway is connected to Huaihua South Hub.It provides a solution for the retrofitting of train control system of railway hubs from the perspectives of reducing integrated commissioning and testing workload and lowering system complexity.
railway hub reconstructionvital data networktrain control level transitionoptimization schemeintegrated commissioning and testing
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