基于改进PSO算法的施工园区交通组织优化研究

Research on optimization of traffic organization in construction parks based on improved PSO algorithm

为解决施工园区内料物运输效率低、运输成本高的问题,综合分析料物运输过程和园区内交通仿真影响机制,构建场内交通仿真综合模型并求解得出施工园区道路共线运输方案,以北京城市副中心站施工园区02B和05B基坑区域为研究对象,利用多角度反馈修正PSO算法求解并对优化后的结果展开分析。研究结果表明:道路公共化前后的料物运输路径改变,道路公共化后运输设置的道路85%行车密度频率提高5%~20%,重点优化的拥堵道路85%行车密度频率降低10%~40%,各私有化道路由二级服务水平变为一级服务水平,促进交通资源的利用率,进而减少运输成本并提高整体园区料物运输效率。研究结果可为国内外其他施工园区封闭管理区域交通组织优化提供理论参考和经验借鉴。

In order to solve the problems of low efficiency and high transportation costs in material transportation within the construction park,the comprehensive analysis of the material transportation process and the impact mechanism of traffic simulation within the park was conducted,then the comprehensive model of on-site traffic simulation was constructed,and the collinear transportation scheme of road in the construction park was solved.Taking the foundation pit areas of 02B and 05B in the construction park of Beijing Urban Sub-center Station as the research object,the multi-angle feedback modified PSO algorithm was used to solve and analyze the optimized results.The results show that the material transportation path before and after road public transportation change,the frequency of 85%road traffic density set after road public transportation increases by 5%~20%,and the frequency of 85%traffic density on key optimized congested roads decreases by 10%~40%.The privatized roads change from the second-level service level to the first-level service level,which promotes the utilization of transportation resources,thereby reducing transportation costs and improving the overall efficiency of material transportation in the park.The research results can provide theoretical reference and experience for the optimization of traffic organization in closed management areas of other construction parks at home and abroad.