Educational disparities shifts in motorcyclist injury severity: Accounting for unobserved heterogeneity

Traffic crashes involving motorcyclists are the dominant public health concern in developing countries. While existing literature has mainly focused on the severity of various risk factors contributing to motorcyclist injury severity, such as helmet use and road and environmental conditions, the rol...

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Published inJournal of transportation safety & security Vol. 17; no. 7; pp. 715 - 756
Main Authors Rehman, Zia Ur, Chaozhe, Jiang, Jamal, Arshad, Wang, Chenzhu
Format Journal Article
LanguageEnglish
Published Taylor & Francis 03.07.2025
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ISSN1943-9962
1943-9970
DOI10.1080/19439962.2024.2449118

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Abstract Traffic crashes involving motorcyclists are the dominant public health concern in developing countries. While existing literature has mainly focused on the severity of various risk factors contributing to motorcyclist injury severity, such as helmet use and road and environmental conditions, the role of the driver's educational background remains a relatively under-researched subject. Educational disparities can significantly impact the risk perception decision-making behavior of motorcyclists, and their complex interplay with other factors can potentially influence injury severity outcomes. Aiming to fill the highlighted research gaps, the current study employs a random parameter logit (RPL) approach by capturing the heterogeneity in individual responses to provide nuanced insights and relationships between motorcyclist educational disparities and their severity outcomes. Four RPL models that account for heterogeneity in means and variances of motorcyclist riders with different levels of education (illiterate, high school, college, and graduation) are developed. The empirical analysis is based on a database of three years (2020 to 2022) of motorcycle accidents maintained by RESCUE 1122 in Rawalpindi, Pakistan. Model assessment for heterogeneity in the means and variances highlighted unique indicators for riders with different educational backgrounds. Model results revealed that severe and fatal injury outcomes are affected by attributes including temporal indicators (weekend, day, year, winter, and autumn), rider profiles (male, young-, middle-, and older-ages), road characteristics (60-70 km/h, lane 3), weather conditions (raining, sunny), and vehicle and crash characteristics (crash with a truck or car, over-speeding, distractions, and slipping). Models' estimation results indicate notable differences among the injury-severity contributing factors for various RPL models, highlighting the significance of motorcyclists' educational backgrounds and unobserved heterogeneity. The recent findings can provide valuable insights and guide researchers and practitioners to develop effective countermeasures and targeted interventions to tackle the safety concerns associated with various motorcyclists' varying education levels.
AbstractList Traffic crashes involving motorcyclists are the dominant public health concern in developing countries. While existing literature has mainly focused on the severity of various risk factors contributing to motorcyclist injury severity, such as helmet use and road and environmental conditions, the role of the driver's educational background remains a relatively under-researched subject. Educational disparities can significantly impact the risk perception decision-making behavior of motorcyclists, and their complex interplay with other factors can potentially influence injury severity outcomes. Aiming to fill the highlighted research gaps, the current study employs a random parameter logit (RPL) approach by capturing the heterogeneity in individual responses to provide nuanced insights and relationships between motorcyclist educational disparities and their severity outcomes. Four RPL models that account for heterogeneity in means and variances of motorcyclist riders with different levels of education (illiterate, high school, college, and graduation) are developed. The empirical analysis is based on a database of three years (2020 to 2022) of motorcycle accidents maintained by RESCUE 1122 in Rawalpindi, Pakistan. Model assessment for heterogeneity in the means and variances highlighted unique indicators for riders with different educational backgrounds. Model results revealed that severe and fatal injury outcomes are affected by attributes including temporal indicators (weekend, day, year, winter, and autumn), rider profiles (male, young-, middle-, and older-ages), road characteristics (60-70 km/h, lane 3), weather conditions (raining, sunny), and vehicle and crash characteristics (crash with a truck or car, over-speeding, distractions, and slipping). Models' estimation results indicate notable differences among the injury-severity contributing factors for various RPL models, highlighting the significance of motorcyclists' educational backgrounds and unobserved heterogeneity. The recent findings can provide valuable insights and guide researchers and practitioners to develop effective countermeasures and targeted interventions to tackle the safety concerns associated with various motorcyclists' varying education levels.
Author Rehman, Zia Ur
Jamal, Arshad
Chaozhe, Jiang
Wang, Chenzhu
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Snippet Traffic crashes involving motorcyclists are the dominant public health concern in developing countries. While existing literature has mainly focused on the...
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SubjectTerms educational disparities shifts
injury severity
motorcyclist crashes
random parameter logit model
unobserved heterogeneity
Title Educational disparities shifts in motorcyclist injury severity: Accounting for unobserved heterogeneity
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