泉州武荣大桥—307省道全互通立交设计

Quanzhou Wurong Bridge—307 Provincial Rd. Completed Interchange Design

武荣大桥—307省道立交位于泉州晋江上游,为城市快速路。根据交通流量预测,设置为全互通立交,采用4个转向匝道苜蓿叶形式的常规布置方案。受防洪要求控制,取消水域一侧的匝道,因此提出了3个比选方案,分别描述了各方案的匝道设置情况及特点。最后,在交通功能、设计车速、占地面积、防洪影响及工程造价等方面对3个方案进行了综合比选,推荐了对防洪影响小、造价低的方案。

Wurong Bridge—307 Provincial Rd.Interchange is defined as urban expressway,located on the Jin River upstream in Quanzhou.According to traffic flow forecast,it shall be set up as a completed interchange with four steering ramps cloverleaf shaped regular layout plans.Controlled by flood protection,ramps along the water area are canceled.And three selection plans are proposed on describing separately ramps' layout conditions and features of different plan.Finally,the three plans are compared and chosen comprehensively from several aspects such as traffic function,designed vehicle speed,floor space,flood protection influence and construction cost,etc.,and then,the best plan is recommended with small flood protection influence and low construction cost.