With road accident characteristic factors and environmental factors as independent variables and accident severity as depend-ent variables,SVM was used to build a road accident prediction model,and the optimal parameter combination in the SSA optimization model was used to establish a road accident prediction model based on SSA optimization.The prediction accuracy of the model was bet-ter than that of generalized linear prediction model and BP neural network prediction model.Through the model causation analysis,three independent variables that have a significant impact on the severity of road accidents are obtained,namely,the non-isolation form,monitoring facilities and the traffic organization form of the nearest intersection,which can be used as the core control parameters of road traffic safety management and control.
NETL
NSTL
万方数据
