Based On Driver-Vehicle-Road-Environment Of Mountainous Area Highway Bridges-Tunnel Transition Section Operating Safety Assessment

By topography and geology restriction, the mountainous area highway bridge, bridgeconnected with the situation can be found everywhere, traffic accidents increased significantly,to people’s lives and property caused a serious harm, on the mountain highway traffic safetyput forward new challenge. At home and abroad due to the mountainous area highway bridgeconnection section traffic safety problem is lack of regularity understanding, therefore, thetraffic accidents are deeply analyzed, to prevent traffic accidents, improve the mountainousarea highway bridge connection section of road safety is of great significance.This paper based on the mountainous area highway special structure connection sectionsafety reliability study on as the backing, mountainous area highway bridge as the researchobject, the transition section on operational safety evaluation theory as the guide, themountainous area highway bridge transition period of safety evaluation index systemresearch.The paper from the mountainous area highway bridge transition period of operation safetypresent situation, analyses the people, vehicles, roads, environment on the mountainous areahighway bridge transition section of the influence of the operation safety. The "person"includes driver traffic characteristics and road management behavior,"car" refers to theperformance of motor vehicle safety stability,"road" including road infrastructure and trafficancillary facilities,"climate" refers to fog, rain and snow, frost and unusual weatherconditions and expressway environment coordination. Only the four elements coordinationand mutual cooperation, to make the whole road operation system in optimal condition, it willbe possible to take effective measures to make the whole operation system safe and reliable.This paper introduces some common safety assessment methods, and comparativeanalysis of their characteristics and mountainous area highway bridge transition section itselfcharacteristic, finally chose the expert investigation method, the index filtration method ofindex weight, and the bridge transition section for operation safety comprehensive evaluation.According to the establishing principles of index system, we established the safety evaluationindex system framework of passager stations.This framework is divided into three layers,contains5second-level indexes and28third-level indexes. We usd the method ofG₁to treat the data of expert advisory table, determined the weight coefficient and established the scorestandard. In order to validate the operability of the score standard and the evaluation indexsystem, we took two mountainous area highway special structure connection section asexamples to analyse, confirmed the practicability of the safety evaluation index system.