The Analysis Of Traffic Running Status Evaluation Index For The Trunk Highway Based On Point、Line And Facet

With the speeding up of urbanization process in our country, the trunk highway isplaying a more and more important role, the transportation demand of trunk highway isgrowing rapidly, but the construction of traffic infrastructure is slow relatively, the level oftraffic management is backward relatively, the traffic problem caused by these is increasinglyacute, the balance between supply and demand of trunk highway is dangerous, trafficcongestion has become a new problem, traffic congestion decline, it will lead to trafficaccidents when the situation keep on worsen. Therefore, evaluate the trunk highway trafficrunning status is not only the key measure to study traffic characteristic of trunk highway, butalso can help to find the reason to the unsatisfactory traffic running status, provide theorysupport for the trunk managers to making traffic improve policies and measures, play aguiding role for trunk highway planning and design even.This article according to the thought of summarize research results at home and abroad—build index system—evaluate traffic running status based on point, line and facet—analyzethe traffic running status improvement". First of all，through collecting data and comparisonanalysis summary the current research status at home and abroad on traffic running status, andput forward the defects and deficiencies of trunk highway traffic running status; Secondly,selecting applicative evaluation indexes from trunk highway intersection, interchange, tollstation respectively, and build evaluation index system of traffic running status for each nodeand give the classification threshold; Thirdly, build the evaluation index system of trafficrunning status for trunk highway basic segment, then combine with the node, study theevaluation process of traffic running status for trunk highway "string beads" road and roadnetwork on the base of segment research; Finally, study the practical and feasibleimprovement measures of unsatisfactory traffic running status for the trunk highway, in orderto improve the operation efficiency of trunk highway.