Volume 39 Issue 6
Dec.  2021
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DONG Aoran, QIN Dan, WANG Zhangshuai, ZHU Zishuo, ZHU Tong. An Analysis of Severity and Heterogeneity of Pedestrian Traffic Accidents Under Low Visibility Environment[J]. Journal of Transport Information and Safety, 2021, 39(6): 27-35. doi: 10.3963/j.jssn.1674-4861.2021.06.004
Citation: DONG Aoran, QIN Dan, WANG Zhangshuai, ZHU Zishuo, ZHU Tong. An Analysis of Severity and Heterogeneity of Pedestrian Traffic Accidents Under Low Visibility Environment[J]. Journal of Transport Information and Safety, 2021, 39(6): 27-35. doi: 10.3963/j.jssn.1674-4861.2021.06.004

An Analysis of Severity and Heterogeneity of Pedestrian Traffic Accidents Under Low Visibility Environment

doi: 10.3963/j.jssn.1674-4861.2021.06.004
  • Received Date: 2021-04-19
    Available Online: 2022-01-12
  • This work studies the factors affecting the severity of pedestrian accidents under low visibility levels and investigates the possible heterogeneity. Taking 6 405 motor vehicle-pedestrian accidents in a city as the object, a random parameter Logit model with heterogeneity in means is established to investigate the factors influencing the severity of pedestrian injuries under high and low visibility levels. Elasticity analysis is used to quantify the influences of significant variables on pedestrian injuries. The results show that there are significant differences in the factors affecting severity of the pedestrian injury under high and low visibility.(1) Male drivers, elderly pedestrians, trucks, asphalt roads, early morning hours, and dark lighting conditions increase the severity of pedestrian injuries under low visibility.(2) Trucks and early morning hours have random parameters under low visibility, which increases the probability of pedestrian death by 4.39% and 2.67%, respectively. Besides, accidents involving trucks and pedestrians at the age from 26 to 35 will increase pedestrian fatalities, and its probability decreases as the combination of street lighting and early morning hours.(3) No heterogeneous factors are found under high-visibility conditions; however, factors such as male pedestrians and motorcycles are found to increase the severity of the accidents. Additionally, factors such as the age of the driver, asphalt road, weekend, and terrain have no significant impact on the severity of the accident.

     

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