Highway Collision Safety Risk Situation Assessment Based on the Number of Deviation Connections
In the past,collisions were mostly focused on factors such as traffic flow and bad weather,and less were explored on linear indicators.Therefore,there is an urgent need for more comprehensive indicators to assess the impact risk.In order to evaluate the highway collision risk and explore the dynamic change trend of the risk,this study proposed a collision safety risk assessment based on the five-element partial correlation number method,which made up for the lack of collision risk in the highway risk assessment,improved the highway evaluation system,and dynamically predicted the risk index and trend change.Firstly,from the perspectives of drivers,vehicles,roads,traffic environment and other factors,a traffic risk assessment index system with 15 indicators was constructed.Considering the shortcomings of the single weighting method,the combination of analytic hierarchy process(AHP)and improved coefficient of variation method(ICVM)was used for weighting.Then,six sections of a highway in Hebei Province containing rich linear data were taken as analysis cases,and the model was used to evaluate its safety risk situation.
Five-dollar partial contact numberImproved coefficient of variation methodSecurity risksRisk profileFreeway
NETL
NSTL
万方数据
