Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, Montana
Indian reservations have been struggling with the highest rate of crashes that lead to fatal and incapacitating injuries across the United States for decades. The US government has been striving to improve roadway safety on Indian reservations to reduce such crashes. However, the rustic nature of th...
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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/10.1155/2018/5942686 |
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| author | Sahima Nazneen Mahdi Rezapour Khaled Ksaibati |
| author_facet | Sahima Nazneen Mahdi Rezapour Khaled Ksaibati |
| author_sort | Sahima Nazneen |
| collection | DOAJ |
| description | Indian reservations have been struggling with the highest rate of crashes that lead to fatal and incapacitating injuries across the United States for decades. The US government has been striving to improve roadway safety on Indian reservations to reduce such crashes. However, the rustic nature of the reservations, issues of jurisdictional coordination and collaboration, inadequate resources, and limited crash data make it challenging for the tribes to reduce the number of severe crashes. Determining factors associated with crashes is one of the most efficient and effective ways to select appropriate countermeasures for improving roadway safety and reducing crashes. Due to the unique nature of each of the reservations, factors contributing to crashes vary across the reservations as well as across the different roadways within the reservations. Only a few researches have investigated factors contributing to crashes on Indian reservations, and no studies have determined the factors separately for different roadways within the reservations. Therefore, this study was conducted to identify the contributory factors to fatal and injury crashes in the Fort Peck Indian Reservation (FPIR). The crash database covering a ten-year period from 2005 to 2014 was obtained from the Montana Department of Transportation (MDT). During this period, 940 crashes occurred on state, county, city, and tribally owned roads. Binary logistic regression models were developed to determine the factors associated with fatal and injury crashes for all roads within the FPIR and separately for the roads maintained by different agencies. The analysis identified unique contributory factors to fatal or injury crashes for different roadways, which justified separating crashes based on different road types. Impaired driving, adverse weather condition, collision with a ditch/embankment, pedestrian involvement, and overturn/rollover crashes were some of the factors that significantly contribute to increasing the risk associated with fatal and injury crashes. Impaired driving was found to be the most significant factor contributing to crash severity in all three roadways. Indian reservation roads were found to be possessing the highest risk of fatal and injury crashes due to impaired driving among the three roadway systems. The results of the study provide the Fort Peck Tribes with the opportunity to determine the countermeasures for safety improvements on their roadway systems efficiently. |
| format | Article |
| id | doaj-art-8e7e25d9a3fa42028ea8d726a4177e7d |
| 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-8e7e25d9a3fa42028ea8d726a4177e7d2025-02-03T06:08:35ZengWileyJournal of Advanced Transportation0197-67292042-31952018-01-01201810.1155/2018/59426865942686Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, MontanaSahima Nazneen0Mahdi Rezapour1Khaled Ksaibati2Department of Civil & Architectural Engineering, University of Wyoming, Office EN 3084, 1000 E University Ave, Dept. 3295, Laramie, WY 82071, USADepartment of Civil & Architectural Engineering, University of Wyoming, Office EN 3084, 1000 E University Ave, Dept. 3295, Laramie, WY 82071, USAWyoming Technology Transfer Center, 1000 E. University Avenue, Department 3295, Laramie, WY 82071, USAIndian reservations have been struggling with the highest rate of crashes that lead to fatal and incapacitating injuries across the United States for decades. The US government has been striving to improve roadway safety on Indian reservations to reduce such crashes. However, the rustic nature of the reservations, issues of jurisdictional coordination and collaboration, inadequate resources, and limited crash data make it challenging for the tribes to reduce the number of severe crashes. Determining factors associated with crashes is one of the most efficient and effective ways to select appropriate countermeasures for improving roadway safety and reducing crashes. Due to the unique nature of each of the reservations, factors contributing to crashes vary across the reservations as well as across the different roadways within the reservations. Only a few researches have investigated factors contributing to crashes on Indian reservations, and no studies have determined the factors separately for different roadways within the reservations. Therefore, this study was conducted to identify the contributory factors to fatal and injury crashes in the Fort Peck Indian Reservation (FPIR). The crash database covering a ten-year period from 2005 to 2014 was obtained from the Montana Department of Transportation (MDT). During this period, 940 crashes occurred on state, county, city, and tribally owned roads. Binary logistic regression models were developed to determine the factors associated with fatal and injury crashes for all roads within the FPIR and separately for the roads maintained by different agencies. The analysis identified unique contributory factors to fatal or injury crashes for different roadways, which justified separating crashes based on different road types. Impaired driving, adverse weather condition, collision with a ditch/embankment, pedestrian involvement, and overturn/rollover crashes were some of the factors that significantly contribute to increasing the risk associated with fatal and injury crashes. Impaired driving was found to be the most significant factor contributing to crash severity in all three roadways. Indian reservation roads were found to be possessing the highest risk of fatal and injury crashes due to impaired driving among the three roadway systems. The results of the study provide the Fort Peck Tribes with the opportunity to determine the countermeasures for safety improvements on their roadway systems efficiently.http://dx.doi.org/10.1155/2018/5942686 |
| spellingShingle | Sahima Nazneen Mahdi Rezapour Khaled Ksaibati Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, Montana Journal of Advanced Transportation |
| title | Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, Montana |
| title_full | Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, Montana |
| title_fullStr | Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, Montana |
| title_full_unstemmed | Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, Montana |
| title_short | Determining Causal Factors of Severe Crashes on the Fort Peck Indian Reservation, Montana |
| title_sort | determining causal factors of severe crashes on the fort peck indian reservation montana |
| url | http://dx.doi.org/10.1155/2018/5942686 |
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