智慧城市路网交通流量均衡性优化调度方法  

Optimal Dispatching Method for Traffic Flow Balance of Smart City Road Network

作　　者：严萌 YAN Meng(Xingzhi College of Xi’an university of Finance and Economics,Shaanxi Xi’an 710054,China)

机构地区：[1]西安财经大学行知学院,陕西西安710054

出　　处：《计算技术与自动化》2024年第1期137-141,共5页Computing Technology and Automation

摘　　要：早高峰和晚高峰时段的路网交通混乱,极易发生拥堵情况,为缓解交通系统压力,设计节点元胞划分下智慧城市路网交通流量均衡性优化调度方法。获取不同交通路线间的流量分离函数,定义路径交通流量和可用路段费用,得到出行者在某段路径上的概率函数,计算智慧城市路网各路段交通流量;获取流量守恒和车辆传递函数,计算可变元胞的单独序列,建立交通节点元胞划分模型;设计交通流量均衡性优化调度算法,得到城市路网均衡性的优化调度结果。设置仿真参数,对比优化前后三个路网模型的路径流量,仿真结果显示:早高峰和晚高峰时段路段内的路径流量明显降低,在其他时段,优化后的路径流量也不同程度下降,且路网模型越复杂,该优化方法的调度效果越好。In order to alleviate the pressure of the transportation system,the optimal scheduling method of traffic flow balance of smart city road network under node cell division is designed.Obtain the flow separation function between different traffic routes,define the path traffic flow and available section cost,obtain the probability function of travelers on a certain section of the path,and calculate the traffic flow of each section of the smart city road network.Obtain the flow conservation and vehicle transfer function,calculate the separate sequence of variable cells,and establish the cell division model of traffic nodes.The optimal scheduling algorithm of traffic flow balance is designed to obtain the optimal scheduling results of urban road network balance.Set the simulation parameters and compare the path flow of the three road network models before and after optimization.The simulation results show that the path flow in the road sections in the morning peak and evening peak hours is significantly reduced,and in other periods,the optimized path flow also decreases to varying degrees,and the more complex the road network model is,the better the scheduling effect of this optimization method is.

关 键 词：节点元胞划分 智慧城市 路网 交通流量 均衡性优化调度 仿真分析 

分 类 号：TN06[电子电信—物理电子学]