大同南中环快速化改造工程总体设计

Overall Design of Datong South Central Ring Rapid Reconstruction Project

摘要:

南中环快速化改造工程是未来大同市东西向流量最大的交通走廊，其将新老城区及铁路航空交通枢纽有效串联。对南中环快速化改造总体设计进行了详细描述，结合现状道路断面及交通需求分析，进行了断面优化设计。通过对现状横向路网的梳理以及重要节点立交的设置，对快速路系统匝道设置提出了具体方案。针对道路现状过河桥梁及立交的设计，借用现状地势提出了有效的解决方案，从而减少了对现状道路设施的改造。最后针对新老城区快速化沟通建设总结了相关经验。

Abstract:

South Central Ring Rapid Reconstruction Project is the largest east-west traffic corridor in Datong City in the future, which effectively connects the new and old urban areas and the railway air transportation hub. The overall design of the rapid reconstruction of South Central Ring is described in detail. Combined with the analysis of the current road section and traffic demand, the section optimization design is carried out. Through the summarization of the current horizontal road network and the setting of important node interchanges, the specific scheme for the ramp setting of expressway system is put forward. According to the design of road crossing river and interchange, the effective solutions are proposed by borrowing the current terrain so as to reduce the reconstruction of the existing road facilities. Finally, the relevant experience is concluded for the construction of rapid connection of old and new urban areas.