عنوان

Safety and Operational Analysis with Mitigation Strategies for Freeway Truck Traffic in Wyoming

Number

TL56178

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Safety and Operational Analysis with Mitigation Strategies for Freeway Truck Traffic in Wyoming

General Material Designation

[Thesis]

First Statement of Responsibility

Haq, Muhammad Tahmidul

Subsequent Statement of Responsibility

Ksaibati, Khaled

Name of Publisher, Distributor, etc.

University of Wyoming

Date of Publication, Distribution, etc.

2020

Text of Note

294 p.

Dissertation or thesis details and type of degree

Ph.D.

Body granting the degree

University of Wyoming

Text preceding or following the note

2020

Text of Note

I-80 in Wyoming is characterized by heavy truck traffic, with an average of 47 percent of heavy trucks in the traffic flow. This research analyzes the impacts of truck traffic along I-80 in Wyoming, as well as mitigation strategies to minimize negative impacts, through analyses of safety and operational implications that result from the interactions between trucks and other vehicles. Various traffic, geometrical, and weather characteristics were found significant to increase truck-related crashes, whereas the presence of climbing lanes was found to have potential safety and operational benefits. The analysis of occupant injury severity in passenger car-truck collisions shows that car drivers are more responsible than truck drivers contributing more severe injuries. The disaggregate modeling approach shows significant differences in both the combination and the magnitude of the impact of variables that justify the importance of examining the injury severity of truck-involved crashes broken down by vehicle types, truck configurations, and driving actions. The crash rate analysis shows a higher tire failure rate for trucks compared to the total tire failure rate considering equal vehicle miles traveled as exposure. Benefit-cost analysis for climbing lane installations indicates that the installation of climbing lanes has a significant potential to improve traffic performances for a 20-year planning horizon, with aggregated benefits significantly outperforming the corresponding costs. Findings from this study are expected to help the Wyoming Department of Transportation and policymakers take necessary actions in reducing truck-related crashes and improve the overall operational performance by targeting appropriate strategies and proper resource allocation.

Subject Term

Civil engineering

Subject Term

Statistics

Subject Term

Transportation

Haq, Muhammad Tahmidul

Ksaibati, Khaled

University of Wyoming

Electronic name

p

[Thesis]

276903

a

Y