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为了研究交通检测器在路网中的布局优化技术,研究通过路段交通流量检测数据反推道路网出行信息的技术。以居民出行OD矩阵为例,通过对OD矩阵与路段交通流量之间相互影响机理的分析,研究了基于交通量检测数据的进行OD反推的可能性。算例的分析结果表明:(1)根据路段交通流量检测数据反推道路网出行信息是可行的(2)路段交通检测器的布局对道路网出行信息反推精度的影响是至关重要的。(3)合理选择关键路段进行检测器的布设,不仅可以获得满足工程应用精度的城市出行信息,还能够节约交通设施的投入。
In order to study the layout optimization technology of traffic detector in road network, this paper studies the technology of traveling information of road network by using traffic data of road traffic detection. Taking the OD matrix of residents’ travel as an example, this paper studies the possibility of OD inversion based on traffic detection data by analyzing the interaction between OD matrix and road traffic flow. The results of the example show that: (1) It is feasible to deduce the information of the road network according to the traffic data of the road section. (2) The influence of the traffic detector layout on the accuracy of the information of the road network is crucial. (3) The rational selection of key sections for the deployment of detectors not only can obtain the city travel information that meets the engineering application precision, but also can save the investment of transportation facilities.