Study Of Express Highway Reconstruction Scheme

Expect after 1990' s in ageses, along with nation economy of quick development, parts of express highways of local economic flourishing area have already started carry on widening reconstruction. To parts of road zones of original express highway perhaps the mutual communication type grade separtion carry on reconstruction' s also gradually increasing. The research which carries on express highway reconstruction scheme is very necessary.Pass the analysis toward the Hu Hang traffic volume OD of the reconstruction engineering of the HuHangYong express highway survey, adopt "four stages", get predication traffic volume, through the capacity of go through the computation get reconstruction the traffic lane need count, thus certain draw up the engineering standard of extension. Through level of service, LOS analysis, the technique's standard can satisfy a traffic volume demand.Cause the type grade separtion of the express highway mutual communication the reason of the reconstruction through an analysis, studied various possible reconstruction scheme. Aim at a big well nodal point in reconstruction, first according to "Guidelines for Safety Audit of Highway"carry on road to match sex check, again usage the United States "Highway Capacity Manual" HCM2000 kit procedure carries on the computation of operating speed and level of service, LOS to the related road zone. Put forward engineering performance to the existent problem, promote to circulate a safety.Take some building projects of express highway engineering in Zhejiang province as to rely on, respectively from the construction method, apply sphere and exist a problem etc., to Zhejiang province inside a few typical model configuration of groundls under the condition of high capital programme of the pose express highway carry on first step of analyze research, and carried on an economic benefit analysis to build of everyone' s case price, get apply of express highway scheme a condition, carried on beneficial quest for the way of thinking which expands express highway reconstruction.This literary grace uses the related theory of road design, these 3 carried on research to the express highway reconstruction from the basic form of the traffic volume forecast, row operating speed and the level of service, LOS, high pose express highway respectively and made sure the Hu Hang Yong express highway extension of standard, put forward the engineering performance which understands a definitely big well nodal point safety problem and got high pose express highway to save at me is worthy of research of conclusion.