China Safety Science Journal ›› 2021, Vol. 31 ›› Issue (7): 164-171.doi: 10.16265/j.cnki.issn 1003-3033.2021.07.023

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Safety performance evaluation of dangerous chemicals transport drivers based on vehicle GPS data

HAN Tianyuan, LI Xuan, LYU Kaiguang, ZHOU Wencai, LIU Yongtao, QIAO Jie   

  1. School of Vehicle, Chang'an University, Xi'an Shaanxi 710064, China
  • Received:2021-04-12 Revised:2021-06-08 Online:2021-07-28 Published:2022-01-28

Abstract: In order to improve science and convenience of daily safety performance evaluation of drivers in road transportation of dangerous chemicals, firstly, natural driving data were mined from vehicle GPS to evaluate drivers' safety performance. By using improved piecewise fitting method based on adaptive transformation of coordinate system, dynamic driving data such as driving speed, acceleration, plane curvature, road slope and slope length were extracted. Then, combined with vehicle rollover speed prediction model and brake drum temperature rise model, a safety evaluation system with seven indexes was established, which includes four levels: driving speed stability, vehicle lateral stability, braking stability and driving state stability. Finally, combination weighting method was used to build a 10 point safety performance evaluation model for road transport drivers of dangerous chemicals. The results show that piecewise-fitting method based on adaptive transformation of coordinate systemreduces fitting residual by 19.23% on average, and evaluation model is sensitive to dangerous driving behavior.

Key words: vehicle global positioning system(GPS), dangerous chemicals transport drivers, safety performance evaluation, driving track, combination weighting method

CLC Number: