Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition
This study examines the effects of wet pavement surface conditions on the likelihood of occurrences of nonsevere crashes in two- and four-lane urban and rural highways in Alabama. Initially, sixteen major highways traversing across the geographic locations of the state were identified. Among these h...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2018/2871451 |
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| _version_ | 1849304440140464128 |
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| author | Aschalew Kassu Michael Anderson |
| author_facet | Aschalew Kassu Michael Anderson |
| author_sort | Aschalew Kassu |
| collection | DOAJ |
| description | This study examines the effects of wet pavement surface conditions on the likelihood of occurrences of nonsevere crashes in two- and four-lane urban and rural highways in Alabama. Initially, sixteen major highways traversing across the geographic locations of the state were identified. Among these highways, the homogenous routes with equal mean values, variances, and similar distributions of the crash data were identified and combined to form crash datasets occurring on dry and wet pavements separately. The analysis began with thirteen explanatory variables covering engineering, environmental, and traffic conditions. The principal terms were statistically identified and used in a mathematical crash frequency models developed using Poisson and negative binomial regression models. The results show that the key factors influencing nonsevere crashes on wet pavement surfaces are mainly segment length, traffic volume, and posted speed limits. |
| format | Article |
| id | doaj-art-1381747557b84de994b0a2c330cc2a3d |
| institution | Kabale University |
| issn | 0197-6729 2042-3195 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-1381747557b84de994b0a2c330cc2a3d2025-08-20T03:55:44ZengWileyJournal of Advanced Transportation0197-67292042-31952018-01-01201810.1155/2018/28714512871451Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface ConditionAschalew Kassu0Michael Anderson1Department of Mechanical, Civil Engineering and Construction Management, Alabama A&M University, Normal, AL 35762, USADepartment of Civil & Environmental Engineering, University of Alabama in Huntsville, Huntsville, AL 35899, USAThis study examines the effects of wet pavement surface conditions on the likelihood of occurrences of nonsevere crashes in two- and four-lane urban and rural highways in Alabama. Initially, sixteen major highways traversing across the geographic locations of the state were identified. Among these highways, the homogenous routes with equal mean values, variances, and similar distributions of the crash data were identified and combined to form crash datasets occurring on dry and wet pavements separately. The analysis began with thirteen explanatory variables covering engineering, environmental, and traffic conditions. The principal terms were statistically identified and used in a mathematical crash frequency models developed using Poisson and negative binomial regression models. The results show that the key factors influencing nonsevere crashes on wet pavement surfaces are mainly segment length, traffic volume, and posted speed limits.http://dx.doi.org/10.1155/2018/2871451 |
| spellingShingle | Aschalew Kassu Michael Anderson Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition Journal of Advanced Transportation |
| title | Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition |
| title_full | Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition |
| title_fullStr | Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition |
| title_full_unstemmed | Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition |
| title_short | Analysis of Nonsevere Crashes on Two- and Four-Lane Urban and Rural Highways: Effects of Wet Pavement Surface Condition |
| title_sort | analysis of nonsevere crashes on two and four lane urban and rural highways effects of wet pavement surface condition |
| url | http://dx.doi.org/10.1155/2018/2871451 |
| work_keys_str_mv | AT aschalewkassu analysisofnonseverecrashesontwoandfourlaneurbanandruralhighwayseffectsofwetpavementsurfacecondition AT michaelanderson analysisofnonseverecrashesontwoandfourlaneurbanandruralhighwayseffectsofwetpavementsurfacecondition |