Crash injury results from complex interaction among factors related to at-fault driver's behavior, vehicle characteristics, and road conditions. Identifying the significance of these factors which affect crash injury severity is critical for improving traffic safety. A method was developed to explore the relationship based on crash data collected on rural two-lane highways in China. There were 673 crash records collected on rural two-lane highways in China. A partial proportional odds model was developed to examine factors influencing crash injury severity owing to its high ability to accommodate the ordered response nature of injury severity. An elasticity analysis was conducted to quantify the marginal effects of each contributing factor. The results show that nine explanatory variables, including at-fault driver's age, at-fault driver having a license or not, alcohol usage, speeding, pedestrian involved, type of area, weather condition, pavement type, and collision type, significantly affect injury severity. In addition to alcohol usage and pedestrian involved, others violate the proportional odds assumption. At-fault driver's age of 25-39years, alcohol usage, speeding, pedestrian involved, pavement type of asphalt, and collision type of angle are found to be increased crash injury severity. The developed logit model has demonstrated itself efficient in identifying the effect of contributing factors on the crash injury severity.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Exploring factors contributing to crash injury severity on rural two-lane highways



    Published in:

    Publication date :

    2015




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    44.80 / 44.80 Unfallmedizin, Notfallmedizin / 50.17 / 55.80 / 55.80 Verkehrswesen, Transportwesen: Allgemeines / 50.17 Sicherheitstechnik



    Exploring factors contributing to crash injury severity on rural two-lane highways

    Ma, Zhuanglin / Zhao, Wenjing / Chien, Steven I-Jy et al. | Elsevier | 2015



    Modified Geometric Design Consistency Criteria for Two-Lane Rural Highways Based On Crash Severity

    Goyani, Jaydip / Arkatkar, Shriniwas / Joshi, Gaurang et al. | Transportation Research Record | 2023



    Extracting crash patterns involving vulnerable users on two-lane rural highways

    López, Griselda / Oña, Juan | Springer Verlag | 2017