Evaluation of the performance of provincial road traffic safety in China based on two-stage DEA model

With rapid development of road and traffic construction, China achieved tremendous growth in social and economic progress, yet also caused a mass of road traffic accidents and suffered great losses in people's lives and property. Through opening the "black box", the road traffic system was decomposed into two subsystems: accident occurrence and accident loss. A serial two-stage additive DEA model was employed to analyze the performance of road traffic safety of 31 provinces in China. The results effectively show regional differences in road traffic safety, identify the key link affected the whole performance, and provide some feasible suggestions for government traffic management department