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中央门立交桥位于原南京城北的中央门广场,东接龙蟠路,西通建宁路、南北连贯中央路,1986年4月30日正式开工,12月28日通车。主体工程施工历时七个月,是江苏省带一座大型城市道路立交桥(见本刊封底照片)。中央门立交桥是一座三层双环式立交桥,工程范围东西660米,南北420米,占地5.7公顷,它由三部分组成:(一)高架桥与东西向直行车道。净宽14米,最大纵坡3.6%,全长512米,其中362.74米为高架桥,余为引道。高架桥部分平面设置半径为700米及1000米的平曲线,竖向顶部设有半
Central Gate overpass is located in the former Central Plaza, Nanjing City, North Gate, East Lung Poon Road, Northwest Jianning Road, North and South Coherent Central Road, officially started on April 30, 1986, opened to traffic on December 28. The main project lasted seven months and was a large-scale urban road overpass in Jiangsu Province (see photo on back cover). The Central Gate Overpass is a three-storey double-ring flyover with 660 meters of east-west and 420 meters of north-south and an area of 5.7 hectares. It consists of three parts: (i) viaduct and east-west straight lane. The net width of 14 meters, the largest longitudinal slope of 3.6%, a total length of 512 meters, of which 362.74 meters for the viaduct, Yu for the approach. Viaduct part of the plane set radius of 700 meters and 1000 meters of the flat curve, vertical top half