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Numerical assement and evaluation of a stream monidification strategy to address sediment aggradation issues at Dean Road bridge in Dale County, Alabama
(2019-01-07)
Severe aggradation in bridge structures is a serious issue since it may lead to overtopping episodes during peak flows or increased risk of serious structural damage. Aggradation processes may be caused by changes in ...
A Study of Differences in Severity among Crash Types in Work Zones and between Work Zone and Non-Work Zone Crashes in Alabama
(2018-07-23)
Highway work zones have become a hazardous place for both construction workers and roadway users due to the increasing risk caused by maintaining and reconstructing roadways. Both the number of crashes and fatalities in ...
Load Testing, Analysis, and Design of a New Box Culvert Wing Tab
(2018-08-03)
Culverts are critical hydraulic and transportation structures. They are often subjected to complex load conditions such as backfill earth pressure and traffic live load. Culverts may experience total and differential soil ...
Investigation of Seismic Design of Slab-on-Girder Bridge Details in Alabama
(2018-07-31)
The Alabama Department of Transportation (ALDOT) requested assistance to simplify and evaluate the process of designing typical slab-on-girder bridges for seismic loads. First, the determination of the seismic hazard in ...
Advanced physical and chemical characterization of oil spill residues
(2019-04-18)
Oil spill contamination is a worldwide problem. On April 20th, 2010, the Deepwater Horizon (DWH) oil platform located off the coast of Louisiana exploded and sank after 2 days. The wellhead could not be sealed until July ...
State of the Practice of Long Distance and Intercity Travel Modeling in US Metropolitan Planning Organizations and State Departments of Transportation
(2019-04-23)
Long distance and intercity travel represent a small percentage of total trips in the U.S., yet they represent a large percentage of total VMT. Long distance trips represent an important travel market with over $317 billion ...
Removal of Uranium(VI) in Contaminated Water Using Iron Based Nanoparticles and Simultaneous Adsorption of Uranium(VI) and 2-Chlorophenol by Activated Carbon Fiber supported Titanate Nanotubes
(2019-12-05)
Uranium is one of the most detected radionuclides in aquatic systems. Reductive immobilization and adsorption have been commonly practiced to remove uranium from water. In this study, CMC-stabilized iron sulfide (FeS) ...
Ozonation and Photodegradation of Oil Compounds by Surface Level Ozone and Engineered Catalysts in Marine Ecosystem
(2018-11-27)
Marine oil spill has been an environmental challenge for many decades. As the use of oil dispersants has become one of the main approaches to clean up spilled oil, the environmental behavior of dispersed oil remains poorly ...
Investigation of Deflection Basins to Identify Structural Distresses within Flexible Pavements
(2017-04-21)
Cracking in pavements is often considered a random phenomenon that is difficult to predict and diagnose. It would be beneficial to pavement managers to identify pavements that are likely to have cracking in the near future ...
Investigation of Contributing Factors of Wrong-Way Driving Crashes on Partially/ Uncontrolled-Access Divided Highways
(2017-04-21)
Wrong-way driving (WWD) crashes are more likely to pose fatal and serious injuries than other types of highway accidents. This study focuses on differentiating the confounding factors that contribute to WWD crashes from ...