A Railway Transportation Safety Assessment Method Based on Safe State Index

Abstract

In order to make a better railway transportation safety system and reduce the number of railway accidents, we establish a safety status index to assess the railway transportation safety level. We calculate the risk value by classifying the safety information provided by the China Railway in accordance with the risk factors of consequence. The combinations of risk value and the level of index weight are used to grasp the overall situation of safety management at all levels. The final result is represented in the form of a safety level which can be used to guide the decisions making during the safety warning. Safety has been the eternal theme of rail transport, with the development of the railway management system reform and science and technology, under the new situation to strengthen railway safety research is the basic guarantee railway sustained and stable development. In this paper, a railway transportation safety assessment method based on railway transportation safety condition is proposed to measure and predict the safety of the railway.Identification of risk factors for railway transportation is the foundation of the construction of the railway transportation safety state index. Identification method is scientific, reasonable and practical, which will directly affect the accuracy and practicality of the safety state index.In this paper, the research on the identification method of risk factors will start from the classification method of the risk factors, and then establish the early warning index system of railway transportation, and then identify the risk factors. The evaluation standard based on hazard levels According to the implementation steps and specific content of the dangerous factors, the standard of the risk factors is divided into two levels. The first one is to determine the risk which is mainly based on the relevant regulations of the railway, the technical standards and operation regulations. To judge the other one which is to determine the degree of danger based on types of safety information, the appropriate values are given according to the severity of the consequences, which achieves a unified and standardized risk level evaluation.