In order to improve the defects of contrast analysis method on automated enforcement effectiveness evaluation in china,in consideration of the influence factors of regression to the mean and traffic management level,a new comprehensive analysis method is given by means of error analysis method in probability theory.It shows that crash effects in our country is greater than that in developed one as a result of automated enforcement,that is,the effects of reducing traffic accidents flowing automated enforcement in China is greater.However,in China,automated enforcement will increase pedestrian hit and the severity of the crash,as well as lead to significant increase the proportion of casualties,which is more obviously different from that in developed country(it only increases the number of rear-end crashes following automated enforcement).The comprehensive analysis method overcomes the defects that contrast analysis method overestimate or underestimate the impacts of automated enforcement in the traffic violations and accidents,it is helpful to promote the application scope and depth of automated enforcement.