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The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations. Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.

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Showing 7281 - 7300 of 36114 results
  • Evaluation of Energy Efficient Options to Heat Ohio Department of Transportation ODOT Maintenance Facilities
    Evaluation of Energy Efficient Options to Heat Ohio Department of Transportation (ODOT) Maintenance Facilities
    Foor, Josh
    ORCID ICON IMG
    2018-01-01 | PDF
    This project was initiated by the ODOT District 2 staff who were looking for more efficient ways to heat and operate their maintenance facilities. This especially applied to the idea of using radiant floor heating as an alternative to today’s standard heating systems. Unfortunately, the research has shown that the financial benefits just aren’t eno ...
  • Advanced Modelling of Piezocone Penetration Test Using Cavity Expansion Theory and Interpretation Simulator Development
    Advanced Modelling of Piezocone Penetration Test Using Cavity Expansion Theory and Interpretation Simulator Development
    Chen, Shengli ;
    Liu, Kai
    2018-01-01 | PDF
    The piezocone penetration test (CPTu) is a well-established and efficient tool used in geotechnical engineering for measuring/interpreting the fundamental soil properties. However, the currently used interpretation methods for the CPTu test are largely empirical in nature and/or often based on over simplistic formulations, thus lacking the analytic ...
  • Evaluating the Effect of Temporary Casing on Drilled Shaft Rock Socket Friction
    Evaluating the Effect of Temporary Casing on Drilled Shaft Rock Socket Friction
    Mullins, Gray ;
    Caliari, Lucas
    2018-01-01 | PDF
    Installation of large diameter steel pipes, called casing, is a common means of stabilizing open excavations needed for drilled shaft construction. While methods vary in both the installation and sequencing of their installation, an expected depth of casing embedment based on boring logs can vary from that which actually is observed in the field. W ...
    Supporting Files
  • Exploring Blockchain Technology Behind Bitcoin and Implications for Transforming Transportation Final Report
    Exploring Blockchain – Technology Behind Bitcoin and Implications for Transforming Transportation, Final Report
    Rajbhandari, Rajat
    2018-01-01 | PDF
    With the release of the Bitcoin concept into the public domain in late 2008, the world of cryptocurrency (electronic currency such as Bitcoin, Ethereum, and hundreds of others) and distributed computing gained a new kind of trust protocol called “blockchain.” Blockchain is a distributed immutable (cannot be deleted) ledger of electronic transaction ...
  • Implementation Plan for Alternatives to Nuclear Density Testing Technical Brief
    Implementation Plan for Alternatives to Nuclear Density Testing [Technical Brief]
    Venkiteela, Giri ;
    Mehta, Yusuf
    2018-01-01 | PDF
    The goal of this study was to facilitate the use of the DCP and initiate implementation in NJ by providing training to NJDOT personnel and contractors in the State of New Jersey on how to operate the DCP and interpret the test results. To achieve this goal, field demonstrations were conducted at NJDOT job sites to present how to operate the DCP and ...
  • Protodrive An Experimental Platform for Electric Vehicle Energy Scheduling and Control DOT UTC Final Report
    Protodrive : An Experimental Platform for Electric Vehicle Energy Scheduling and Control, DOT UTC Final Report
    Mangharam, Rahul
    2018-01-01 | PDF
    Electric vehicles are a promising alternative to vehicles powered by fossil fuels due to their cleaner energy emission, but current limitations in battery technology are preventing electric vehicles from burgeoning in the mass consumer market. Therefore, simulating and prototyping various power trains become paramount for finding different energy e ...
  • Successes in Stewardship Back to the Basics How FHWA Legal Staff Can Help with Project Delivery
    Successes in Stewardship - Back to the Basics: How FHWA Legal Staff Can Help with Project Delivery
    United States. Federal Highway Administration
    2018-01-01 | PDF
    Successes in Stewardship is a Federal Highway Administration (FHWA) bimonthly newsletter highlighting current best practices in stewardship and environmental review from around the country.
  • Truck Platooning Policy Barriers Study
    Truck Platooning Policy Barriers Study
    Windover, Paul ;
    Owens, Russell
    2018-01-01 | PDF
    Heavy truck platooning has the potential to reduce fuel consumption by up to 10% while improving safety. Truck platooning has been successfully demonstrated on test vehicles by several developers in the U.S. This project investigated heavy truck platooning technology readiness; projected commercialization timeframe; fleet knowledge of, interest in, ...
  • Technology Today Volume 32 Issue 2 Winter 2018
    Technology Today, Volume 32, Issue 2, Winter 2018
    Louisiana Transportation Research Center
    2018-01-01 | PDF
    Technology Today is a quarterly publication of the Louisiana Transportation Research Center, administered jointly by the Louisiana Department of Transportation and Development and Louisiana State University.
  • Real Estate Acquisition Guide For Local Public Agencies
    Real Estate Acquisition Guide For Local Public Agencies
    United States. Department of Transportation. Federal Highway Administration. Office of Real Estate Services
    2018-01-01 | PDF
    This guide is intended to serve as a basic reference for local public agencies and others who receive Federal–aid highway funds for projects involving the acquisition of real property. Typically, the Federal Highway Administration (FHWA) provides funds to State governments who carry out highway projects. These funds are used to support activities r ...
  • Development of a Road Condition Recovery Time Estimation System for Winter Snow Events
    Development of a Road Condition Recovery Time Estimation System for Winter Snow Events
    Kwon, Eil ;
    Park, Chongmyung
    2018-01-01 | PDF
    This research develops a Normal Condition Regain Time (NCRT) estimation system, which automatically determines the NCRT at detector stations on the metro-freeway network for given snow events. The NCRT process is based on the findings that the speed level during the recovery process reaches a stable free-flow-speed (FFS), whose value is generally l ...
  • Effect of Polymer Slurry Stabilization on Drilled Shaft Side Shear Over Time
    Effect of Polymer Slurry Stabilization on Drilled Shaft Side Shear Over Time
    Mullins, G. ;
    Caliari, L
    2018-01-01 | PDF
    Slurry supported construction of drilled shafts requires highly engineered fluid made from mineral clay or polymer powder mixed with water. In the state of Florida the present open excavation time limit / specification is directed at the use of mineral slurry that forms a layer of clay along the excavation walls and thereby can affect the as-built ...
  • Transportation Investment and Job Creation in Minnesota Counties
    Transportation Investment and Job Creation in Minnesota Counties
    Zhao, Zhirong (Jerry) ;
    Leung, Weiwen
    2018-01-01 | PDF
    Numerous studies have been conducted about the impact of transportation investment on economic development. These studies typically use a conventional production function model of economic development augmented by a public capital input, such as highways, rail, or other transportation investments. The findings, in general, confirm a positive elasti ...
  • Electric Vehicle Interaction at the Electrical Circuit Level
    Electric Vehicle Interaction at the Electrical Circuit Level
    Sariri, Shawyun ;
    Schwarzer, Volker
    2018-01-01 | PDF
    The objective of the Electric Vehicle Interaction at the Electrical Circuit Level project was to investigate electric vehicle (EV) charging as a means of mitigating transient over-voltages (TOVs) on the circuit level electric utility distribution grid. A transient time domain model of a sub-circuit service area was developed to simulate TOV mitigat ...
  • Carbon Fiber Reinforced Polymer Grids for Shear and End Zone Reinforcement in Bridge Beams
    Carbon Fiber Reinforced Polymer Grids for Shear and End Zone Reinforcement in Bridge Beams
    Ward, John E. ;
    Magee, Mitch
    2018-01-01 | PDF
    Corrosion of reinforcing steel reduces life spans of bridges throughout the United States; therefore, using non-corroding carbon fiber reinforced polymer (CFRP) reinforcement is seen as a way to increase service life. The use of CFRP as the flexural reinforcement in bridge girders has been extensively studied. However, CFRP transverse reinforcement ...
  • WisDOT Research Program 2018 Annual Report
    WisDOT Research Program: 2018 Annual Report
    Wisconsin. Department of Transportation
    2018-01-01 | PDF
    This is a report of research and technology transfer activities carried out by the Wisconsin Department of Transportation through the Part 2 research portion of the State Planning and Research Program of the Federal Highway Administration, U.S. Department of Transportation. The report describes activities during Federal Fiscal Year 2018, covering O ...
  • Connected Vehicle WrongWay Driving Detection and Mitigation DemonstrationPhase II Project Summary
    Connected Vehicle Wrong-Way Driving Detection and Mitigation Demonstration-Phase II : Project Summary
    Finley, Melisa D. (Melisa Dayle)
    2018-01-01 | PDF
    Connected vehicles (CVs) and their integration with transportation infrastructure provide new approaches to wrong-way driving (WWD) detection, warning, verification, and intervention that will help practitioners further reduce the occurrence and severity of WWD crashes. In Phase I, the research team reviewed the state of the practice regarding inte ...
  • Overturning Forces at Bridge Abutments and the Interaction of Horizontal Forces from Adjacent Roadways
    Overturning Forces at Bridge Abutments and the Interaction of Horizontal Forces from Adjacent Roadways
    Muraleetharan, Kanthasamy K. ;
    Miller, Gerald A.
    2018-01-01 | PDF
    ODOT is experiencing a number of problems related to the interactions between bridge abutments and adjacent roadways. These problems include expansion joints closing, roller support bearings tilting, and beams pushing against abutment backwalls. Design, construction, repair, and maintenance guidelines to alleviate adverse effects of interactions be ...
  • Scheduling Work Zones in MultiModal Networks
    Scheduling Work Zones in Multi-Modal Networks
    Mirchandani, Pitu B. ;
    Peng, Dening
    2018-01-01 | PDF
    This research develops heuristics to manage mandatory network capacity reductions to better serve the network flows. The main application discussed relates to transportation networks, and flow cost relates to travel cost of users of the network. Temporary mandatory capacity reductions are required by maintenance activities. The objective of managin ...
  • Synthesis Accelerating Implementation of Research Findings to Reduce Potential Concrete Pavement Joint Deterioration Summary
    Synthesis: Accelerating Implementation of Research Findings to Reduce Potential Concrete Pavement Joint Deterioration [Summary]
    Weiss, W Jason ;
    Olek, Jan
    2018-01-01 | PDF
    Over the last several years, the Indiana Department of Transportation (INDOT) initiated multiple research projects focused on identifying the origins and failure mechanisms responsible for premature joint deterioration in concrete pavements, as well as on the development of potential guidelines for eliminating or slowing down this distress. Similar ...
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