Exploring contributing factors to improper driving actions in single-vehicle work zone crashes: A mixed logit analysis considering heterogeneity in means and variances, and temporal instability

A work-zone introduces unexpected conditions for road users and may cause severe safety issues. This study aims to understand drivers’ pre-crash improper actions, which are the major contributing factor to the crash occurrence and outcomes severity in single-vehicle (SV) work-zone crashes. A mixed logit model with heterogeneity in mean and variance was developed using Florida’s seven-year work-zone crash data. The estimated models investigated five pre-crash improper actions (no contributing action, careless driving, speeding, swerving lanes, and other pre-crash actions) in SV work-zone crashes. Year-paired likelihood ratio tests identified temporal instability existing in the dataset over the study period and suggested yearly model estimation to capture the temporal instability. The model results identified a wide range of variables that impact drivers’ pre-crash improper actions, such as driver and weather conditions, work-zone type, and temporal and lighting characteristics. The findings of this study imply that driving psychology plays a critical role in safety-related driving behaviors in work-zone areas. Engineering or education countermeasures that could increase driver alertness of potential hazards are suggested to reduce improper actions by drivers and improve work-zone safety.

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    • © 2023 Publisher & Univ. of Tenn. Published with license by Taylor & Francis Group, LLC 2023. Abstract reprinted with permission of Taylor & Francis.
  • Authors:
    • Rangaswamy, Rakesh
    • Alnawmasi, Nawaf
    • Wang, Zhenyu
    • Lin, Pei-Sung
  • Publication Date: 2024-7

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  • English

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  • Accession Number: 01925878
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 29 2024 4:27PM