The invention discloses a highway traffic detector layout method based on double-layer constraint, and belongs to the technical field of highway traffic informatization. In order to solve the problem of effective arrangement of detectors on an expressway, the expressway scene simulation model is constructed by using VISSIM software, and the perceptual traffic flow, vehicle speed and occupancy data of a section are acquired by setting detector detection points in the simulation model; analyzing a traffic information correlation coefficient, and constructing a traffic information perception completeness function of the detector; setting a traffic information perception completeness threshold value, and establishing a constraint condition for complete acquisition of traffic information; considering a redundancy sensing area of traffic data, and establishing a constraint condition of traffic information sensing redundancy; analyzing influence factors of detector layout; and constructing a double-layer constraint detector layout model, and solving by using a simulated annealing algorithm to obtain a double-layer constraint-based expressway traffic detector layout result. The invention provides an economical and practical detector layout scheme.
一种基于双层约束的高速公路交通检测器布设方法,属于公路交通信息化技术领域。为解决检测器在高速公路上的有效进行布设的问题,本发明利用VISSIM软件构建高速公路场景仿真模型,通过在仿真模型中设置检测器检测点,采集断面的感知交通流量、车速、占有率数据;分析交通信息相关系数,构建检测器的交通信息感知完备度函数;设定交通信息感知完备度阈值,建立交通信息完备获取的约束条件;考虑交通数据的冗余感知区域,建立交通信息感知冗余度的约束条件;分析检测器布设的影响因素;构建双层约束的检测器布设模型,利用模拟退火算法进行求解,得到基于双层约束的高速公路交通检测器布设结果。本发明提供经济实用的检测器布设方案。
Highway traffic detector layout method based on double-layer constraint
一种基于双层约束的高速公路交通检测器布设方法
2023-12-15
Patent
Electronic Resource
Chinese
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