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dc.contributor.authorWatson, Donald C.
dc.contributor.authorAl-Kaisy, Ahmed
dc.contributor.authorAnderson, Nathan D.
dc.date.accessioned2019-03-05T15:31:24Z
dc.date.available2019-03-05T15:31:24Z
dc.date.issued2014-03
dc.identifier.citationWatson, Donald C., Ahmed Al-Kaisy, and Nathan D. Anderson. “Examining the Effect of Speed, Roadside Features, and Roadway Geometry on Crash Experience Along a Rural Corridor.” Journal of Modern Transportation 22, no. 2 (March 28, 2014): 84–95. doi:10.1007/s40534-014-0040-4.en_US
dc.identifier.issn2196-0577
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15304
dc.description.abstractThis paper presents a current investigation into crash experience along a 15.7-mile rural corridor in southwest Montana with the aim of better understanding crash causal factors along the corridor. The study utilized ten years of crash data, geometric data, and observed free-flow speed data along the corridor. A systematic approach was used where every tenth of a mile was described in term of the crash experience, speed, alignment, and roadside features. Using bivariate and multivariate statistical analyses, the study investigated the crash experience along the corridor as well as some of the underlying relationships which could explain some of the crash causal factors. Results show a strong association between crash rates and horizontal curvatures even for flat curves that can be negotiated at speeds above the posted speed limit, per the highway design equations. Higher crash rates were also found to be associated with the difference between the observed free-flow speeds and the speed dictated by the curve radius or sight distance as per the design equations. Further, results strongly support the safety benefits of guardrails as evidenced by the lower crash rates and severities. The presence of fixed objects and the steepness of side slopes were also found to have an effect on crash rates and severities.en_US
dc.description.sponsorshipNational Science Foundation Montana State University Western Transportation Instituteen_US
dc.language.isoenen_US
dc.rightsCC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleExamining the Effect of Speed and Roadway Geometry on Crash Experience along a Rural Corridoren_US
dc.typeArticleen_US
mus.citation.extentfirstpage84en_US
mus.citation.extentlastpage95en_US
mus.citation.issue2en_US
mus.citation.journaltitleJournal of Modern Transportationen_US
mus.citation.volume22en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.1007/s40534-014-0040-4en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentCivil Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupWestern Transportation Institute (WTI).en_US
mus.data.thumbpage8en_US


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CC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.
Except where otherwise noted, this item's license is described as CC BY: This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.