公路改扩建方案分析与选择

Analysis and Selection of Highway Expansion Program

公路改扩建是提高公路网服务水平的重要途径,文中进行了一般公路改建方案的比选分析研究。在路网改建方案中对路网加密、近距离新建、旧路加宽三种方案不同的特点进行分析比较;在加宽方式的选择上,对单侧加宽、两侧加宽、分离加宽、混合加宽四种方式的优缺点进行了分析。

Road rehabilitation and expansion is an important way to improve the road network level of service, we conduct the analysis than the election of the general highway reconstruction program. The road network encryption in the road network upgrading programs, close to New, and different characteristics of the Old Road Widening the three scenarios were analyzed and compared; choice of widening the way, unilateral widening both sides of the widening separation plus wide mixed widening of the advantages and disadvantages of the four ways are analyzed.