The Research On The Conversion Pattern Of New Interchange With Three Conversion Road

At present,The mountainous three road interchange fees with flared overpass form ,which have many limitations in the form of alignment design(lack of flexibility.This caused the landscape and ecological severely damaged and the cost of the rise . In order to apply technical indicators of design by adjusting measures to local conditions. Make the overpass new design concept better combined with mountainous natural environment, the author carried out a new kind of three road overpass form . And have conducted the research on the technical indexes and the using conditions of this overpass.This article have studied the control indicators of the overpass design changes effects on design,further studied the mountainous area highway interchange overpass planning and design technology .This paper have studied set pointsof the conversion lanes of new interchange and given suggested parameter values, and studied its feasibility .Through further research and analysis, the main conclusions are as follows:1. The form of communication interchange and index effect the land of interchange and how much and height of construction. Combining the research mountainous area highway interpenetration of planning and design technology research topic2. This paper discussed the feasibility and safety reliability of the new overpass, and given Technical indicators for the new interchange.3. Using theoretical analysis and calculation, combined with high-speed exchange of Chongqing mountain experience in the design.This paper proposed initial new-style three road overpass ,and the applicability of the traffic and Toll booths and ramp distance.