Adaptability Analysis Of Traffic Incident Detection Algorithm And Method Of Detectors Distribution

Traffic incident detection as the prerequisite and an important part of the trafficmanagement system can monitor traffic operating conditions for the traffic managementdepartments, and provide traffic information for the traffic management system in time. Soaccident state can be restored to normal operation as soon as possible by means of planningand coordination. And how the traffic incident detection algorithm adapted to local trafficconditions and whether the detector distribution is reasonable play a decisive role in rapidtraffic incident detection.First, the paper researched traffic incident detection theoretical, summed up thedefinition of a traffic incident and the classification of traffic incident detectiontechnology,then traffic incident detection algorithm based on detection theory classificationare introduced, and described the traffic incident detection algorithm evaluation index and therelationship between the evaluation index; Secondly, in view of the less research of trafficincident detection algorithm adaptability at home and abroad, the paper analysis ofinfluencing factors of event detection algorithm, and by means of the VISSIM simulationanalysis of traffic is validated, the detector spacing, the incident location and severity of theincident on the increase amount of automatic detection algorithm and detection algorithm inCalifornia; Finally, studied the layout method of traffic detectors, summarized severalcommon traffic detector layout method, combined with examples of the shock wave theorylaid costs and detection results method of setting research.