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    Effects of Pavement Surface Conditions on Traffic Crash Severity

    Source: Journal of Transportation Engineering, Part A: Systems:;2015:;Volume ( 141 ):;issue: 010
    Author:
    Jaeyoung Lee
    ,
    BooHyun Nam
    ,
    Mohamed Abdel-Aty
    DOI: 10.1061/(ASCE)TE.1943-5436.0000785
    Publisher: American Society of Civil Engineers
    Abstract: Improving road safety through proper pavement maintenance is one of the goals of pavement management. Many studies have found that pavement conditions significantly influence traffic safety. Although several studies have explored the relationship between pavement conditions and crash occurrence, the effect of poor pavement conditions on crash severity levels has not been investigated, especially by using a discrete model that can handle ordered data. This paper focuses on the development of the relationship between poor pavement conditions and crash severity levels using a series of Bayesian ordered logistic models for low/medium/high speed roads and single/multiple collision cases. The Bayesian ordered logistic regression models indicated that the poor pavement condition decreases the severity of single-vehicle collisions on low-speed roads whereas it increases their severity on high-speed roads. On the other hand, the poor pavement condition increases the severity of multiple-vehicle crashes on all roads. Findings of this study can assist transportation agencies at the federal, state, and local levels to select appropriate pavement maintenance and rehabilitation strategies to reduce traffic crash severity levels.
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      Effects of Pavement Surface Conditions on Traffic Crash Severity

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    http://yetl.yabesh.ir/yetl1/handle/yetl/80594
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    contributor authorJaeyoung Lee
    contributor authorBooHyun Nam
    contributor authorMohamed Abdel-Aty
    date accessioned2017-05-08T22:26:07Z
    date available2017-05-08T22:26:07Z
    date copyrightOctober 2015
    date issued2015
    identifier other44897838.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/80594
    description abstractImproving road safety through proper pavement maintenance is one of the goals of pavement management. Many studies have found that pavement conditions significantly influence traffic safety. Although several studies have explored the relationship between pavement conditions and crash occurrence, the effect of poor pavement conditions on crash severity levels has not been investigated, especially by using a discrete model that can handle ordered data. This paper focuses on the development of the relationship between poor pavement conditions and crash severity levels using a series of Bayesian ordered logistic models for low/medium/high speed roads and single/multiple collision cases. The Bayesian ordered logistic regression models indicated that the poor pavement condition decreases the severity of single-vehicle collisions on low-speed roads whereas it increases their severity on high-speed roads. On the other hand, the poor pavement condition increases the severity of multiple-vehicle crashes on all roads. Findings of this study can assist transportation agencies at the federal, state, and local levels to select appropriate pavement maintenance and rehabilitation strategies to reduce traffic crash severity levels.
    publisherAmerican Society of Civil Engineers
    titleEffects of Pavement Surface Conditions on Traffic Crash Severity
    typeJournal Paper
    journal volume141
    journal issue10
    journal titleJournal of Transportation Engineering, Part A: Systems
    identifier doi10.1061/(ASCE)TE.1943-5436.0000785
    treeJournal of Transportation Engineering, Part A: Systems:;2015:;Volume ( 141 ):;issue: 010
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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