Research On Reliability Analysis Of Freeway Emergency Rescue System

With the rapid development of China's national economy, the construction of freeways is rising. However, the rapid development of freeways, freeway accidents caused by the casualties and property losses are much higher than ordinary roads. In traffic accidents caused casualties, a considerable portion is not timely rescue and casualty, disability. It goes without saying that after the accident to take timely and effective emergency measures, to reduce accidents caused by the (casualties and economic) losses, the second chain to prevent the accident is important. Freeway emergency relief system is the most direct purpose of the response to the fastest speed, with the shortest possible time, exclude accidents, reduce direct and indirect economic losses and casualties. Therefore, how to improve the effectiveness and reliability of relief, so that timely and accurate the ambulance personnel to arrive at the scene, ruled out the accident, treat the injured, ease the traffic, and accident damage and minimize the consequences of the maximization of social benefits.Although the system reliability analysis in many fields have wide applications, such as water supply systems, communication systems, electrical systems, but unexpected events emergency system reliability analysis of the results of research on relatively uncommon. Therefore, this paper to freeway emergencies emergency rescue system for the study, the occurrence of unexpected events before and after the incident early warning, rescue events and other activities run features on the basis of the analysis, system reliability from the theory of freeway emergency rescue system reliability of the system and the establishment of reliability modeling for a certain amount of research.This article first freeway emergency rescue system of theory, system reliability study theory, the transport system reliability research and review and freeway emergency relief system reliability on synthesis and summary of the theory, and on the basis of this right expressway emergency relief system to evaluate the reliability of analysis. Freeway emergency rescue system based on the structure and characteristics of the analysis, the freeway emergency relief system reliability the definition of building the freeway emergency relief system reliability research framework and thus more accurate and comprehensive evaluation system for emergency operation quality. Secondly, this paper, based on the principle and fault tree analysis, the freeway emergencies emergency rescue system reliability of static analysis system modeling framework, the establishment of emergency rescue system of freeway fault tree. According to the static model of the fault tree analysis reliability of the process of solving emergency rescue system fault tree minimum cut set, then through the smallest cut set for top event probability, the last of which are static the whole system reliability. For the future in our emergency rescue system of freeway construction and management of the study and solve the reliability issues provided a reference for.Finally, the article from the point of the network reliability, based on the initial run time of the emergency relief system reliability, uptime reliability of the establishment of a mathematical model, using Monte Carlo analysis of the simulation model, and be an example.