摘要
枢纽互通式立交应满足高速公路之间交通流转换的功能需要,因此要根据其在路网中的交通功能,结合交通量、地形条件、技术指标、工程规模、服务水平等控制性因素进行多方案设计比选.以甘肃省S44 康略高速与G8513 平绵高速枢纽互通设计方案为例,从项目的功能定位和建设必要性及交通量预测等多角度分析方案一(T形内交叉)与 方案二(T形左转弯匝道迂回型)的优劣,经综合比选,确认方案一更具整体优势.
Abstract
Junction interchange should meet the functional needs of traffic flow conversion between expressways.Therefore,according to its traffic function in the road network,combined with traffic volume,topographic conditions,technical indicators,project scale,service level and other controlling factors,multi-scheme design should be compared and selected.Taking the design scheme of system inter-change scheme between S44 Kanglue Expressway and G8513 Pingmian Expressway in Gansu Province as an example,this paper analy-zes the advantages and disadvantages of scheme 1(T-shaped inner intersection)and scheme 2(T-shaped left turn ramp roundabout)from multiple perspectives such as project function positioning,construction necessity and traffic volume prediction,etc.It shows that scheme one has more overall advantages.
维普
万方数据