National Road Traffic Safety Level Analysis Based on Principal Component Analysis
In order to provide a clear and intuitive analysis of road traffic safety in various regions of the country,the princi-pal component analysis was used to analyze the changes in the national road traffic safety level from 2013 to 2022,using the indicators of mortality rate per 10 000 vehicles,injury rate per 10 000 vehicles,accident loss per 10 000 vehicles(RMB 10000),and accident rate per 10000 vehicles.The results indicate that the level of road traffic safety in China has shown a gradual upward trend from 2013 to 2022.In 2015 and 2020,Shanghai remained the city with the highest level of road traffic safety,while Chongqing made the greatest progress in road traffic safety.Based on the experience of traffic safety manage-ment in these two cities,measures are proposed to expand and renovate road networks,construct and optimize public trans-portation,improve road traffic efficiency and regulatory construction,strengthen law enforcement.In addition,it is necessary to strengthen the education and management of drivers and pedestrians to improve the level of road traffic safety.