摘要
以特殊事件为研究背景,针对大型活动举办时活动地点附近的交通特点,建立路网交通疏解优化模型.初阶模型将系统的交通疏散时长最短作为优化目标,上阶模型以准动态交通配置的用户最优为目标,递阶模型利用初阶模型单行设置参数持续将数据传达给上阶模型,以形成平衡的趋势来实现路网运行最佳效果;在单行优化的基础上,对疏散路网里道路交叉点交通指示灯绿信比匹配优化,设计道路交叉口交通指示灯配时优化的递阶模型,运用交通仿真进行效果分析,验证了模型的合理性和可行性.
Taking the special event as the research background,a traffic network optimization model for road network traffic diversion was established based on the traffic characteristics near the event site when the large-scale event was held.The Preliminaiy model takes the shortest evacuation duration of the system as the optimization objective and the upper model takes the user optimization of quasi-dynamic traffic allocation as the objective.The hierarchical model uses the single-line setting parameters of the preliminary model to continuously transmit data to the upper model to form a balanced trend to achieve the best results of the road network operation.Based on the single-line optimization,traffic instructions for road intersections in the evacuation road network light-to-green ratio matching optimization,a hierarchical model of traffic light timing optimization at road intersections is designed,and traffic simulation is used to analyze the effect,which verifies the model's rationality and feasibility.
作者
曲大义
王五林
韩乐潍
贾彦峰
QU Da-yi;WANG Wu-lin;HAN Le-wei;JIA Yan-feng(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China)
出处
《青岛理工大学学报》
CAS
2020年第2期121-129,共9页
Journal of Qingdao University of Technology
基金
国家自然科学基金资助项目(51678320)。
关键词
特殊事件
交通组织
递阶优化模型
交通仿真
special event
traffic organization
hierarchical optimization model
traffic simulation
