Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 42 for “"FHWA"”.
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Role of Driver Hearing in Commercial Motor Vehicle Operation: An Evaluation of the FHWA Hearing Requirement
The Federal Highway Administration (FHWA) currently requires that all persons seeking a commercial driver's license for interstate commerce possess a certain minimal level of hearing. After an extensive literature review on topics related to hearing and driving, a human factors engineering approach …
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Miles to meters an examination of public attitudes towards metric conversion: The 1977 FHWA Highway Metrication Proposal
Using letters written to the federal government in opposition to conversion to the metric system, this paper examines the phenomenon of fierce opposition to standards change, focusing on the types of reasoning used. I evaluate the presence of both economic and normative reasoning and identify six …
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Super Heavy Load Pavement Analysis PaCKage (SuperPACK): Verification and Modification
… of the Federal Highway Administration (FHWA) study, Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements. SuperPACK(TM) implements the different procedures, and methods developed by the FHWA study to analyze the move of Superheavy Loads (SHLs) on flexible …
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A methodology for the design of wet detention basins for treatment of highway stormwater runoff
… solids to refine a methodology selected by the FHWA in designing wet detention basins for the treatment of highway stormwater runoff. Thirteen runoff samples were collected, over two years, from high volume (greater than 100,000 vehicles per day) highways in the Northern Virginia area. The …
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Effects of Font Design on Highway Sign Legibility
… tested fonts were E Modified Base, Alpha Two FHWA E Narrow, Alpha Two FHWA D, and Alpha Two FHWA C, named Base, Narrow, D-Altered, and C-Altered respectively. Forty-two participants participated in both tests. For the "Letters Test", the smallest average font size was the narrow font, followed …
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Model-based design of a ultra high performance concrete prototype highway bridge girder
… today, the Federal Highway Administration (FHWA) is constantly seeking to develop new bridges that can meet and adapt to current and future traffic, minimize environmental impact, require low-maintenance and are economical and easy to install. An Ultra High Performance Concrete (UHPC) bridge …
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Analysis of Freeway Weaving Areas Using Corridor Simulator and Highway Capacity Manual
… developed by Federal Highway Administration (FHWA) for simulation of traffic behavior on integrated urban transportation networks of freeway and surface streets. The intent of this research is to identify the difference in the results by using the new CORSIM simulation and the traditional HCM …
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In-Situ Recycling: Applications, Guidelines, and Case Study for Local Governments
… Recycling and Reclamation Association (ARRA), FHWA, and state agencies with recycling experience. This study also resulted in documenting obstacles that localities may face when in-situ recycling, as well as the impact of limited experience with recycling. The study also evaluated the …
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Identifying Secondary Crashes by Using Geographic Information System (GIS) and Determining the Secondary Crashes Characteristics
… 25% of traffic congestion in the United States (FHWA, 2014). The risk of the occurrence of secondary crashes can be six times higher in the presence of a primary crash than that at a normal traffic condition (Yang et al., 2013 and Tedesco, 1994). The purpose of this study is 1) to develop a …
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Seismic Assessment of RC Structures Considering Vertical Ground Motion
… the effect of vertical ground motion. FHWA Bridge systems selected from the previously completed analysis was used during full hybrid simulations designed to realistically represent the loading experienced by bridge columns during earthquakes. The horizontal ground motion was used as …
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Live Load Testing and Analysis of the Southbound Span of U.S. Route 15 over Interstate-66
… The Federal Highway Administration's (FHWA) Long-Term Bridge Performance (LTBP) Program has been developed to help bridge stakeholders make the best decisions concerning the allocation of these funds. This is done through the use of high quality data obtained through numerous testing …
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Non-Destructive Bridge Deck Condition Assessment with a Probability-Based Deterioration Threshold
… studied under Federal Highway Administration (FHWA)'s Long-Term Bridge Performance (LTBP) Program.
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Effect of Severe Corrosion on Lateral Strength of Square RC Bridge Columns
… to the Federal Highway Administration (FHWA) report in 2013, 25.9 percent of the total inventory of highway bridges are deficient or functionally obsolete. Corrosion damage caused by deicing salts is considered one of the main problems that cause a bridge structure to be structurally …
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HDL implementation of a controller area network node
… (NJDOT), and the Federal Highway Administration (FHWA). Promising results have been obtained using this approach and should improve driver safety and assist NJSP with technology modernization and management within their fleet of troop cars.</p>
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Investigation of Ultra-High Performance Concrete for Longitudinal Joints in Deck Bulb Tee Bridge Girders
… concrete. The Federal Highway Administration (FHWA) has extensively tested a proprietary class of UHPC, but WSDOT has been hesitant to adopt this mix because of its high cost and associated high risk. In this study, a mix design developed by Washington State University was tested for its …
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Determination of scour susceptibility through rapid assessment
… to rapidly estimate scour components outlined in FHWA guidelines. Key to the successful implementation of this procedure is all information including bridge plans, historic inspection records, historic photographs, and current photographs were digitized, geo-referenced, and incorporated into GIS …
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LONG-TERM EFFECTS OF CONFIRMATION LIGHTS AND FACTORS THAT LEAD TO RED LIGHT RUNNING
… nationwide. The Federal Highway Administration (FHWA) reported a total of 676 fatalities in 2009 were due to RLR. The Insurance Institute for Highway Safety (IIHS) reported that more than half of RLR crash fatalities are other than the driver (pedestrians, occupants, etc.). There are many …
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A System for Travel Time Estimation on Urban Freeways
… this system are compared with the results of FHWA simulation package TSIS 5.0 and the estimation system is found to give reasonable and comparable results when compared with TSIS results.
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Assessing the Impact of Bicycle Infrastructure and Modal Shift on Traffic Operations and Safety Using Microsimulation
… surrogate safety assessment model (SSAM) from FHWA was used to analyze the safety effect on the bike infrastructure improvement and expansion. Results of this study showed a positive impact of complete streets transformation on the streets of Midtown and Downtown Atlanta. These impacts are …
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Environmental Influence on the Bond Between a Polymer Concrete Overlay and an Aluminum Substrate
… method by the Federal Highway Administration (FHWA). However, recent evidence has suggested that ECR will not provide adequate long term corrosion protection. The Reynolds Metals Company has developed an aluminum bridge deck system as a proposed alternative to conventional reinforced steel …
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