摘要
为减少城市轨道交通建设施工期间对城市道路交通的影响,保障施工点附近的城市居民出行通畅,创新研究了基于分区加权Voronoi图的交通疏解组织方案。首先,将道路分隔的地块重心作为点要素,分区域将地块相邻道路背景交通量中的饱和度作为权重,构建出行路径模型;其次,利用Arcgis软件将出行路径模型矢量生成加权Voronoi图,依据道路背景饱和度作为阻抗因素,筛选远端交通疏解绕行线路及设置有效交通指引标志方案;最后,以广州地铁11号线芳村站为例,利用分区加权Voronoi图构建了芳村地铁站点施工期间交通疏解组织方案,并利用Visum软件进行了方案交通影响分析,验证该方案的可操作性。
In order to reduce the impact of urban rail transit construction on urban road traffic during construction, and to ensure the smooth travel of urban residents near the construction site, a traffic organization scheme based on the partitioned weighjted voronoi diagram was innovatively studied. Firstly, the point of gravity of the road-separated plot is used as the point feature, and the saturation of the background traffic volume of the adjacent roads of the plot is used as the weight to construct a travel path model. Secondly, arcgis software is used to generate a partitioned weighjted voronoi diagram from the travel path model vector which is based on the road background saturation as an impedance factor, the far-end traffic detours are detoured and effective traffic guidance signs are set up. Finally, taking the Fangcun Station of Guangzhou Metro Line 11 as an example, a partitioned weighted voronoi diagram is used to construct a traffic deconstruction organization plan during the construction of the Fangcun subway station. The traffic impact of the plan is verified for the operability using visum software.
作者
刘尔辉
LIU Erhui(Guangzhou Transport Planning Research Institute,Guangzhou 510375,China)
出处
《交通与运输》
2020年第1期5-8,共4页
Traffic & Transportation
