Evaluation Method of Train Diagram Quality Based on Overall Transportation Potency of Regional Rail Network

Abstract:

The regional rail network is characterized by numerous lines and sections， complex composition of transportation capacity resources and great differences in passenger and freight demand. The quality of train diagrams is directly related to the overall transportation potency of the regional rail network. Based on potency in terms of capacity， efficiency and quality， a five-level evaluation index system is built. For version difference analysis， a version comparison evaluation method is developed， integrating the gray relevancy and the horizontal pull-off grade methods. For quality inspection， a section comparison evaluation method is developed based on the K-MEANS++ and the improved TOPSIS. Case studies on three different versions of the railway network train diagram in Shanghai Railway Group show the 0620 version is the best in version comparison and performs well in section comparison. The evaluation results are multi-dimensional and hierarchical， and provide a decision-making basis for the preparation and adjustment of the train diagram.