Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneity

Introduction: This research aims to identify and understand the risk factors associated with injury severities in accidents occurring at highway–rail grade crossings in the context of the developing country, Thailand.Method: The mixed logit model was employed by analyzing crash data over 10 years, f...

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Main Authors: Chamroeun Se, Thanapong Champahom, Wimon Laphrom, Sajjakaj Jomnonkwao, Vatanavongs Ratanavaraha
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-10-01
Series:Frontiers in Built Environment
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fbuil.2023.1255762/full
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author Chamroeun Se
Thanapong Champahom
Wimon Laphrom
Sajjakaj Jomnonkwao
Vatanavongs Ratanavaraha
author_facet Chamroeun Se
Thanapong Champahom
Wimon Laphrom
Sajjakaj Jomnonkwao
Vatanavongs Ratanavaraha
author_sort Chamroeun Se
collection DOAJ
description Introduction: This research aims to identify and understand the risk factors associated with injury severities in accidents occurring at highway–rail grade crossings in the context of the developing country, Thailand.Method: The mixed logit model was employed by analyzing crash data over 10 years, from 2012 to 2022.Results: The analysis revealed a number of significant factors associated with severe or fatal crashes. These included accidents that occurred between midnight and 6 a.m., collisions involving pickup cars or heavy trucks, roads with a “no overtaking zone” sign, intersections classified as Type B1 (defined by the presence of only warning posts and horizontal crossing barriers), and intersections without adequate traffic control devices. In contrast, hazard markers on pavements and traverse rumble strips were positively correlated with property damage only crashes, where no injuries were reported.Discussion: This study provides insights into contributory factors to accidents at highway–rail grade crossing. Based on these key findings, the study recommends increasing nighttime visibility at railway grade crossings, developing targeted education and training programs for pickup car and truck drivers, installing hazard markers and traverse rumble strips, and considering physical barriers, such as bollards or delineators, to discourage overtaking maneuvers near the railway crossing.
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spelling doaj.art-7f39f6b336824441a8016050f9a177202023-10-23T11:54:55ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622023-10-01910.3389/fbuil.2023.12557621255762Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneityChamroeun Se0Thanapong Champahom1Wimon Laphrom2Sajjakaj Jomnonkwao3Vatanavongs Ratanavaraha4Institute of Research and Development, Suranaree University of Technology, Nakhon Ratchasima, ThailandDepartment of Management, Faculty of Business Administration, Rajamangala University of Technology Isan, Nakhon Ratchasima, ThailandInstitute of Research and Development, Suranaree University of Technology, Nakhon Ratchasima, ThailandSchool of Transportation Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, ThailandSchool of Transportation Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, ThailandIntroduction: This research aims to identify and understand the risk factors associated with injury severities in accidents occurring at highway–rail grade crossings in the context of the developing country, Thailand.Method: The mixed logit model was employed by analyzing crash data over 10 years, from 2012 to 2022.Results: The analysis revealed a number of significant factors associated with severe or fatal crashes. These included accidents that occurred between midnight and 6 a.m., collisions involving pickup cars or heavy trucks, roads with a “no overtaking zone” sign, intersections classified as Type B1 (defined by the presence of only warning posts and horizontal crossing barriers), and intersections without adequate traffic control devices. In contrast, hazard markers on pavements and traverse rumble strips were positively correlated with property damage only crashes, where no injuries were reported.Discussion: This study provides insights into contributory factors to accidents at highway–rail grade crossing. Based on these key findings, the study recommends increasing nighttime visibility at railway grade crossings, developing targeted education and training programs for pickup car and truck drivers, installing hazard markers and traverse rumble strips, and considering physical barriers, such as bollards or delineators, to discourage overtaking maneuvers near the railway crossing.https://www.frontiersin.org/articles/10.3389/fbuil.2023.1255762/fullrailway-grade crossingsinjury severitydeveloping countryThailandrandom parametersheterogeneity in means and variances
spellingShingle Chamroeun Se
Thanapong Champahom
Wimon Laphrom
Sajjakaj Jomnonkwao
Vatanavongs Ratanavaraha
Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneity
Frontiers in Built Environment
railway-grade crossings
injury severity
developing country
Thailand
random parameters
heterogeneity in means and variances
title Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneity
title_full Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneity
title_fullStr Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneity
title_full_unstemmed Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneity
title_short Analysis of factors influencing crash injury severities at highway–rail grade crossings accommodating for unobserved heterogeneity
title_sort analysis of factors influencing crash injury severities at highway rail grade crossings accommodating for unobserved heterogeneity
topic railway-grade crossings
injury severity
developing country
Thailand
random parameters
heterogeneity in means and variances
url https://www.frontiersin.org/articles/10.3389/fbuil.2023.1255762/full
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AT thanapongchampahom analysisoffactorsinfluencingcrashinjuryseveritiesathighwayrailgradecrossingsaccommodatingforunobservedheterogeneity
AT wimonlaphrom analysisoffactorsinfluencingcrashinjuryseveritiesathighwayrailgradecrossingsaccommodatingforunobservedheterogeneity
AT sajjakajjomnonkwao analysisoffactorsinfluencingcrashinjuryseveritiesathighwayrailgradecrossingsaccommodatingforunobservedheterogeneity
AT vatanavongsratanavaraha analysisoffactorsinfluencingcrashinjuryseveritiesathighwayrailgradecrossingsaccommodatingforunobservedheterogeneity