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 24 for “"Highway research"”.
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Evaluation of indirect tensile strength to identify asphalt concrete rutting potential
… as implemented at the end of the Strategic Highway Research Program (SHRP) does not include any testing to evaluate asphalt mixture for resistance to permanent deformation. This prompted the National Cooperative Highway Research Program (NCHRP) to sponsor projects for the development of a …
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Análise de recalques do aterro experimental II sobre a argila mole de Sarapuí com elementos drenantes
… under Trial Embankment II built by Brazilian Highway Research Institute on the Sarapui's soft clay at Fluminense Plains. This embankment has seven instrumented sections being five of them with vertical drains and the other two with no vertical drains. The methods used for the calculation of …
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Assessment of HEC-18 equations for NCHRP abutment scour based on Kansas field data
… localized. Recently the National Cooperative Highway Research Program (NCHRP) drafted a final report titled "Estimation of Scour Depth at Bridge Abutments, NCHRP 24-20." The method outlined in this document was adopted by HEC-18 as an alternative method for use in the estimation of scour …
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Shear Behavior of Reinforced Concrete Beams and Prestressed Concrete Beams
… structures due to a lack of experimental research data. As an effort to overcome the limitation to the use of high strength concrete (HSC) in shear design, an experimental study, Project 12-56 ""Application of the LRFD Bridge Design Specifications to High-Strength Structural Concrete: …
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Evaluation of performance graded asphalt binder equipment and testing protocol
… October 1987 through March 1993, the Strategic Highway Research Program (SHRP) conducted a {dollar}50 million research effort to improve asphalt pavement technology. The research led to the development of the Superpave(TM) mix design system (Superior Performing Asphalt Pavements) and the …
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Utilização de geotêxteis como reforço de aterros sobre solos moles
… This experimental program was a part of a large research program sponsored by the Highway Research Institute (Brazil). Six text sections, in which geotextile type and installation method varied, were constructed. Measurements were compared with a section with no reinforcement and also compared …
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The Effects of Cognitive Executive Load on Driving Crashes and Near-Crashes
… Data were extracted from the Second Strategic Highway Research Program Naturalistic Driving Study, where vehicles were instrumented to record driving behavior and crash/near-crash data. Cognitive executive and visual-manual tasks paired with a second cognitive executive task were compared to …
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An Evaluation of Assignment Algorithms and Post-Processing Techniques for Travel Demand Forecast Models
The purpose of this research project was to evaluate the techniques outlined in the National Cooperative Highway Research Program Technical Report 255 Highway Traffic Data for Urbanized Area Project Planning and Design (NCHRP-255), published in 1982 by the Transportation Research Board. This …
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Modeling Driver Behavior and I-ADAS in Intersection Traversals
… driving datasets: the Second Strategic Highway Research Program (SHRP-2) and the Virginia Traffic Cameras for Advanced Safety Technologies (VT-CAST) 2020. A step-by-step approach was taken to create an algorithm that can identify three different intersection traversal trajectories: …
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Evaluation of climate data sources and investigation of performance prediction models for mechanistic-empirical pavement designs
… was developed under National Cooperative Highway Research Program (NCHRP) research study 1-37A. Subsequently, renamed as DarWin-ME in April 2011, and AASHTOWare Pavement ME design (PMED) in February 2013, this tool has been rapidly emerging as the state-of-the-art practice for pavement …
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Fourier Transform Interferometry for 3D Mapping of Rough and Discontinuous Surfaces
… for large-scale aggregate characterization in highway research laboratories. Additionally, the techniques developed in this work are potentially useful in a large number of applications in which surface roughness or discontinuities pose a challenge.
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A Naturalistic Driving Study for Lane Change Detection and Personalization
… collected as part of the Second Strategic Highway Research Program (SHRP2). The SHRP2 Naturalistic Driving Study (NDS) set is mined for lane change events. This work develops a way to detect reliable lane changing instances from a huge NDS dataset with more than 5,400,000 data files. The …
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Assessing Driver Behavior in the Context of Driving Environment
… naturalistic driving data in recent years allows researchers the capability to capture real-time driver behavior and be able to infer an individual’s driving style. However, current studies focus largely on at-risk safety behavior that is often incomplete (e.g., does not consider all types of …
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The development of a holistic approach to modeling driver behavior : accounting for driver heterogeneity in car-following models
… dissertation, a sample from the second Strategic Highway Research Program Naturalistic Driving Study was analyzed. This sample contains 665 trips completed on freeways in clear weather conditions. Driver demographics, vehicle CAN bus, and external sensor data are available for each trip. The …
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Limits of Permissible Damage in Strong-Post W-Beam Guardrail
… protocols laid out in National Cooperative Highway Research Program (NCHRP) Report 350, test level 3. A number of minor damage modes were found to pose significant risks to vehicle occupants and should be repaired as soon as possible. In order of priority of repair, these modes are missing …
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The correlation of a penetrometer to load bearing tests on prepared plots
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science. Dept. of Civil Engineering, 1951
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Model-based design of a ultra high performance concrete prototype highway bridge girder
In light of the current situation of highway bridge girders 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 …
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Column-Supported Embankments: Full-Scale Tests and Design Recommendations
… for significant contributions to the Strategic Highway Research Program, which include accelerated construction and long-lived facilities. Twelve design/analysis procedures are described in this report, and ratings are assigned based on information available in the literature. A test facility …
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Flexural Resistance Factors for Partially Prestressed Members Using ASTM A 1035 Reinforcing Steel
… reports published by the National Co-operative Highway Research Program Project 12-77 (Shahrooz et al.) and Mast et al. (2008) changes were recommended to AASHTO LRFD and ACI 318 for increasing the strain limit that defines tension-controlled members using high-strength steel. The codes state …
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