China Safety Science Journal ›› 2023, Vol. 33 ›› Issue (3): 126-133.doi: 10.16265/j.cnki.issn1003-3033.2023.03.0176

• Public safety • Previous Articles     Next Articles

Research on traffic violations interval time based on Cox proportional hazard regression model

LI Congying1(), ZHANG Haoxing1, TAN Qian1,2, LI Wei1, CHENG Hua3, WANG Qi1   

  1. 1 Civil Engineering College, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
    2 Transportation College, Xi'an Traffic Engineering Institute, Xi'an Shaanxi 710300, China
    3 Xi'an Municipal Design and Research Institute Co., Ltd., Xi'an Shaanxi 710068, China
  • Received:2022-10-12 Revised:2023-01-11 Online:2023-03-28 Published:2023-11-28

Abstract:

In order to explore the influence of driver and time factors on the interval time of motor vehicle traffic violations on urban roads, data on the interval time, driver age, and accumulated points of motor vehicle drivers were collected. A set of 10 influencing factors was obtained after data cleaning. A Cox proportional hazard regression model based on the survival analysis algorithm was utilized to study the differences in the interval of the driver traffic offense and the key factors affecting the reccurrence of driver offense. The impact of each variable on the interval between the reccurrence of traffic offenses was analyzed. The findings indicate that the time interval of traffic violations is significantly affected by age, accumulated points, and month. Drivers aged 33 to 44 have the highest re-offending rate, while drivers over 60 have the lowest. Additionally, the cumulative points of the driver were found to be positively correlated with the steepness of the survival curve, and the accumulated points were positively correlated with the re-offending rate of the driver. Finally, the survival rates were highest in November and shortest in January at the same interval.

Key words: Cox proportional hazard model, traffic violation interval, survival analysis, influencing factor, survival rate