Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances Approach

Autonomous vehicle (AV) technologies are expected to play a crucial role in reducing traffic crashes occurred by human factors; however, foreseeable coexistence of AVs with human-driven vehicles (HDVs) for an extended transition period raises safety concerns. Understanding factors influencing AV-inv...

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Main Authors: Haocheng Li, Amjad Pervez, Jaeyoung Jay Lee
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10850905/
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author Haocheng Li
Amjad Pervez
Jaeyoung Jay Lee
author_facet Haocheng Li
Amjad Pervez
Jaeyoung Jay Lee
author_sort Haocheng Li
collection DOAJ
description Autonomous vehicle (AV) technologies are expected to play a crucial role in reducing traffic crashes occurred by human factors; however, foreseeable coexistence of AVs with human-driven vehicles (HDVs) for an extended transition period raises safety concerns. Understanding factors influencing AV-involved crashes is crucial, especially as human drivers may struggle to comprehend the behavior of AVs during interactions. This study addresses this gap by employing a random parameter probit model with heterogeneity in means and variances. Dataset comprises AV crash records obtained from the California Department of Motor Vehicles from 2018 to the first quarter of 2024. Crashes on roadway segments and intersection are modeled separately. Modeling results reveal that factors such as poor lighting conditions, braking maneuver of AVs, proceeding straight movement of HDVs, involvement of bikes/scooters, residential land-use significantly contribute to AV-involved crash occurrence on segments and at intersections. On segments, first quarter of the year, the retail/entertainment land use, sideswipe collision, dangerous maneuver of HDVs and proceeding straight moment of AVs affect the likelihood of AV-involved crashes. Meanwhile, at intersection, rear-end collision, raining/snowing, unusual road conditions, four-leg intersection, lack of pedestrian island/intersection control significantly increases the probability of AV-involved crashes while angle collision and large skew angle decreases it. The findings highlight the need for more targeted goals to improve AV’s safety, such as enhancing AV sensor perception capabilities, incorporating scenario-based tests by categorization of crash location, and developing mass education initiatives to facilitate the broader acceptance and understanding of AV technologies.
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spelling doaj-art-738a5eddf2ab427cbe7f32604c0b51f72025-01-31T00:01:05ZengIEEEIEEE Access2169-35362025-01-0113168791689510.1109/ACCESS.2025.353293710850905Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances ApproachHaocheng Li0https://orcid.org/0009-0007-7410-4637Amjad Pervez1https://orcid.org/0000-0001-6283-2871Jaeyoung Jay Lee2https://orcid.org/0000-0003-1211-688XSchool of Traffic and Transportation Engineering, Central South University, Changsha, ChinaSchool of Traffic and Transportation Engineering, Central South University, Changsha, ChinaSchool of Traffic and Transportation Engineering, Central South University, Changsha, ChinaAutonomous vehicle (AV) technologies are expected to play a crucial role in reducing traffic crashes occurred by human factors; however, foreseeable coexistence of AVs with human-driven vehicles (HDVs) for an extended transition period raises safety concerns. Understanding factors influencing AV-involved crashes is crucial, especially as human drivers may struggle to comprehend the behavior of AVs during interactions. This study addresses this gap by employing a random parameter probit model with heterogeneity in means and variances. Dataset comprises AV crash records obtained from the California Department of Motor Vehicles from 2018 to the first quarter of 2024. Crashes on roadway segments and intersection are modeled separately. Modeling results reveal that factors such as poor lighting conditions, braking maneuver of AVs, proceeding straight movement of HDVs, involvement of bikes/scooters, residential land-use significantly contribute to AV-involved crash occurrence on segments and at intersections. On segments, first quarter of the year, the retail/entertainment land use, sideswipe collision, dangerous maneuver of HDVs and proceeding straight moment of AVs affect the likelihood of AV-involved crashes. Meanwhile, at intersection, rear-end collision, raining/snowing, unusual road conditions, four-leg intersection, lack of pedestrian island/intersection control significantly increases the probability of AV-involved crashes while angle collision and large skew angle decreases it. The findings highlight the need for more targeted goals to improve AV’s safety, such as enhancing AV sensor perception capabilities, incorporating scenario-based tests by categorization of crash location, and developing mass education initiatives to facilitate the broader acceptance and understanding of AV technologies.https://ieeexplore.ieee.org/document/10850905/Autonomous vehiclecrash analysisrandom parameters with heterogeneity in means and variancesroadway segmentintersectionroad safety
spellingShingle Haocheng Li
Amjad Pervez
Jaeyoung Jay Lee
Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances Approach
IEEE Access
Autonomous vehicle
crash analysis
random parameters with heterogeneity in means and variances
roadway segment
intersection
road safety
title Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances Approach
title_full Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances Approach
title_fullStr Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances Approach
title_full_unstemmed Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances Approach
title_short Exploring Factors Influencing Crash Occurrence Involving Autonomous Vehicle: Random Parameters Model With Heterogeneity in Means and Variances Approach
title_sort exploring factors influencing crash occurrence involving autonomous vehicle random parameters model with heterogeneity in means and variances approach
topic Autonomous vehicle
crash analysis
random parameters with heterogeneity in means and variances
roadway segment
intersection
road safety
url https://ieeexplore.ieee.org/document/10850905/
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AT amjadpervez exploringfactorsinfluencingcrashoccurrenceinvolvingautonomousvehiclerandomparametersmodelwithheterogeneityinmeansandvariancesapproach
AT jaeyoungjaylee exploringfactorsinfluencingcrashoccurrenceinvolvingautonomousvehiclerandomparametersmodelwithheterogeneityinmeansandvariancesapproach