Study On The Design Of Urban Rail Transit Operational Safety Assessment Early Warning Platform

Safety is the main themes of urban rail transit operations. With the rapid development of urban rail transit, it is moving in the high-density, short interval and less transfer. Moreover, the urban rail transit passenger carrying capacity increased year by year, the highest daily passenger volume of Beijing has nearly eight million people. These phenomena need more demand of the urban rail transport security, so that the security is facing new challenges. Carry out urban rail traffic safety study of comprehensive assessment early warning, both to strengthen the safety management of urban rail transit, to prevent and reduce subway accident, reducing the failure rate of the rail transportation equipment and facilities, and promote the healthy and orderly, safe and efficient have important theoretical and practical significance. This paper relys on the "12th Five-Year" Science and Technology Support Project-Urban rail transport organization, key technologies of control and security integration and systems developed. Key technologies of urban rail transit network operations security and system development (2011BAG01B02) is a project of it.First of all, by reading literatures and field research, statistical and analysis the urban rail accidents. Find out the impact of urban rail traffic safety elements and analyzed them.Secondly, on the basis of the security implications of factor analysis, asked the comprehensive assessment of urban rail transit security warning needs. Build up single factor early warning indicators of passenger traffic, failure of equipment and facilities, environmental. And research the warning threshold values.Then, combined single factor early warning indicators, establish comprehensive assessment of early warning indicators. They have3different levels-stations, lines, and network. Combined with index content, puts forward the index method and determining weight dimensionless method, research and determined the comprehensive warning methods.At last, design the urban rail traffic safety assessment of early warning platform. With theoretical research, analysis platform system requirements, design platform physical structure, logical architecture and general function. On the basis of the overall functional design, each function of subsystem module have been detailed designed and descriped. Finally, study the system database, design platform interface, briefly examining how to achieve this platform...