Traffic Organization Of Expressway Reconstruction And Expansion In Work Zone

Freeway's reconstruction and extension has become a hot phenomenon which need occupy some lane. Its capacity of original freeway has a sharp decline in a short time,and inevitably lead to that the original traffic crossings conditions changed. Trafic management in work zone is a major component of freeway of widened roads. The article combined with the Influencing factors of analysis in freeway's reconstruction and extension,and Re-analysis the traffic organization of freeway's reconstruction and extension, to provide ideas for the traffic organizing project of freeway's reconstruction and extension.The article on the base of analyzing the study at home and abord, prosed the study main content of this article. After analyzing the influencing factor during the time of freeway's reconstruction and extension and traffc flows at construction section.then analyzing the way of freeway's reconstruction and extension, summarying and summarizing the advantages and disadvantages of the way of freeway's reconstruction and extension and traffc flows at construction section.then analyzing the way of freeway's reconstruction and extension,at the same time by example of the choice of way of the freeway's reconstruction and extension about Xian to baoji.Secondly,to the center of freeway's reconstruction and extension, In the analysis on the basis of their sphere of influence,analyzing the diversion of traffic flow from the external and internal traffic organization. In complying with the principles of the traffic organizationg,introduce the diverstion of trffic flow,then analyzes the modle of vehicle,road network and the set of introduction,diversion and control point, determining the diversion program,while example of external diversion of freeway's reconstruction and extension,applied it.Finally,combined with traffic organizationg program of freeway's reconstruction and extension is organized,and evaluating the traffic organzation of the freeway's reconstruction and extension.For the traffic organzationg design of the freeway's reconstruction and extension,according to engineering Properties and construction Features, the internal traffic organization divided into four construction phases:1 the subgrade construction early stage;2 the subgrade construction terminal stage;3 the pavement construction period;4 traffic engineering with road facilies and landscape greening construction period,and at the example of the internal traffic organization plan of freeway's reconstruction and extension,applying to the construction organization of main sections of road, the construction organization of intercommunication overpass sections and the construction organization of flyover section.Finally,from the evaluation of traffic organization plan to start,constructing assess index system,coursing to screen the dermination,analyzing to determine the dynamic comprehensive evaluation,using the dynamic comprehensive evaluation to evaluate,throughing to evaluate, verifying the article on the design of traffic organization plan at freeway's reconstruction and extension and the correct of study evaluation.