Deployment of heterogeneous sensors for traffic accident detection and prevention
At present,there is a lack of technical standards and theoretical methods in heterogeneous sensors deployment for road traffic accident detection and prevention.Therefore,this paper presented a deployment method of heterogeneous sensors for accident detection and prevention.Considering the uncertainty of traffic accidents,historical traffic accident data was used to obtain the stable spatial distribution of road accident risk.Then sensors deployment problem was converted into the optimal coverage problem on road traffic accidents risk.The optimal deployment model of heterogeneous sensors was established to maximize the coverage quality with the constraint of sensors deployment cost,accidents detection error,and so on.International open accidents data and road scenarios were used to validate the proposed method.The results show that the sensors layout scheme can effectively match with road accidents risk and achieve the expected coverage performance under different cost.Therefore,the proposed method can meet the requirements of sensors deployment under accidents uncertainty,and realize the optimal layout of heterogeneous sensors.
traffic engineeringsensors deploymentcombinatorial optimizationheterogeneous sensorstraffic accident detection and prevention
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