Study On The Subgrade Diseases In Permafrost Of Qinghai-Tibet

With the completion of Chongqing Ring Expressway,Jiangjin Yangtze River Bridge and Jijiang Bridge,the main city of Chongqing to Jijiang about drive no more than 30 minutes.Good location advantages will promote further development of Jijiang's economy and society,forJijiang urban construction,industrial layout,agricultural development has brought a profound and positive impact.With the development of the city,City traffic and pedestrian crossing traffic will be greatly improved.Across the street from a pedestrian safety point of view,Jijiang urban several typical sections of the current pedestrian crossing ways to if adapt to the future transport development,Jiangjin District Government provide about several typical sections the pedestrian crossing research program,This study evaluated the role about a typical section have great significance.Thesis describes the status of Jiangjin,including population,land,etc.,Analysis about the development situation and road conditions of Jiangjin city traffic.Secondly,the status of a typical road sections were analyzed,such as vehicle speed,traffic volume and other sections.Through the above two aspects of investigation and analysis,to understand the general situation of Jiangjin,which has laid a good foundation for our future work.Subsequently,combining several Jiangcheng Jiangjin industrial layout and so will this area is divided into 14 traffic zones,based on TransCAD OD matrix method,TransCAD of OD matrix estimation process and data preparation,to give each traffic zone Planning the P,A traffic,To analyze the total traffic of Jiangjin,traffic generation amount prediction,attract traffic volume forecast,traffic distribution and traffic assignment.Finally,the typical sections of pedestrian crossing program analysis,including the applicability of the pedestrian crossing scheme compared to the terminal roundabout,next to the hotel Shu fruit,Bridge Road and Hill Road Interchange tripod and other traffic in several places demand prediction,pedestrian crossing program analysis.Based on the 13-point traffic,street traffic,current situation and future projections point observing traffic demand analysis,advantages and disadvantages of this 13-point made a number of recommendations for improvement,including the building of roads,the control flow,and so on.