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US Transportation Collection

rosaP Repository & Open Science Access Portal

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 28361 - 28380 of 35564 results
  • Consolidation of Concrete With EpoxyCoated Reinforcement
    Consolidation of Concrete With Epoxy-Coated Reinforcement
    Herman, Reagan S ;
    Jirsa, James O.
    1997-04-01 | PDF
    The specific objectives of this testing are as follows: (1) assess the damage to epoxy-coated reinforcing bars produced by metallic head and rubber head vibrators; (2) assess the quality of consolidation obtained with rubber head vibrators as compared with metallic head vibrators; (3) determine the degree and quality of consolidation obtained with ...
  • Permeability of Coarse MatrixHigh Binder Mixtures and Its Effects on Performance
    Permeability of Coarse Matrix-High Binder Mixtures and Its Effects on Performance
    Izzo, Richard P. ;
    Button, Joe W.
    1997-04-01 | PDF
    The primary objective of this study is to evaluate permeability of coarse matrix-high binder (CMHB) mixtures in comparison with dense-graded mixtures and estimate the relative effects on pavement performance. Specific objectives include (1) developing a permeability test protocol, (2) comparing oxidative aging of CMHB and dense-graded mixtures, (3) ...
  • Development of Automated Routing of OverweightOversize Vehicles System for Houston District
    Development of Automated Routing of Overweight/Oversize Vehicles System for Houston District
    Osegueda, Roberto A. ;
    Ashur, Suleiman
    1997-04-01 | PDF
    The Motor Carrier Division (MCD) of the Texas Department of Transportation (TxDOT) typically issues more than 32,000 permits each month for oversize and/or overweight vehicles. The procedure for attending these requests is time consuming and costly. It consists of (a) establishing a tentative route with adequate clearances (b) an identification of ...
  • Field instrumentation of dowels final report May 1997
    Field instrumentation of dowels : final report, May 1997.
    Sargand, Shad M. ;
    Cinadr, Edward
    1997-04-01 | PDF
    Four different types of dowels, 11/2 inch diameter epoxy-coated steel bars, 11/2 inch diameter fiberglass, 1 1/2 deep steel and fiberglass I-beams, were instrumented with strain gages and installed. Forces that developed in these dowel bars due to curling and non-destructive testing using falling weight deflectometer (FWD) were examined. Based on t ...
  • Field instrumentation of dowels executive summary April 1997
    Field instrumentation of dowels : executive summary, April 1997.
    Sargand, Shad M. ;
    Cinadr, Edward
    1997-04-01 | PDF
    Four different types of dowels, 11/2 inch diameter epoxy-coated steel bars, 11/2 inch diameter fiberglass, 1 1/2 deep steel and fiberglass I-beams, were instrumented with strain gages and installed. Forces that developed in these dowel bars due to curling and non-destructive testing using falling weight deflectometer (FWD) were examined. Based on t ...
  • ReEvaluation of Ramp Design Speed Criteria Review of Practice and Data Collection Plan
    Re-Evaluation of Ramp Design Speed Criteria: Review of Practice and Data Collection Plan
    Hunter, Michael ;
    Machemehl, Randy B
    1997-04-01 | PDF
    Freeway ramp design speed criteria contained in current American Association of Highway and Transportation Official (AASHTO) and Texas Department of Transportation (TxDOT) design policies have been traced through roughly 50 years of technical literature. The evolution of design speed criteria has been documented and a technical rationale leading to ...
  • Low volume highwayrail grade crossing treatments for the Oregon high speed rail corridor final report
    Low volume highway-rail grade crossing treatments for the Oregon high speed rail corridor : final report.
    Bell, Chris A. ;
    Hunter-Zaworski, K. M.
    1997-04-01 | PDF
    This study defines how to gather information and how to obtain the communication and response necessary for safety at highway-rail crossings. It examines technologies for low-cost, high-safety treatments for low volume (less than 200 ADT) highway crossings of higher speed [130-200 kph (80-125 mph)] rail. A full crossing closure and consolidation pr ...
  • Cops and Docs Prescription to Success
    Cops and Docs: Prescription to Success
    United States. Department of Transportation. National Highway Traffic Safety Administration
    1997-04-01 | PDF
    One page flyer advocating a partnership of medical and police personnel to campaign against unsafe driving practices.
  • An Integrated Computer Modeling Environment for Regional Land Use Air Quality and Transportation Planning
    An Integrated Computer Modeling Environment for Regional Land Use, Air Quality, and Transportation Planning
    Hanley, Charles J. ;
    Marshall, Norman L.
    1997-04-01 | PDF
    The Land Use, Air Quality, and Transportation Integrated Modeling Environment (LATIME) represents an integrated approach to computer modeling and simulation of land use allocation, travel demand, and mobile source emissions for the Albuquerque, New Mexico, area. This environment provides predictive capability combined with a graphical and geographi ...
  • Airport Development Needs Estimating Future Costs
    Airport Development Needs: Estimating Future Costs
    United States. Government Accountability Office
    1997-04-01 | PDF
    As part of the FAA Reauthorization Act of 1996 (P.L. 104-264, section 274(e)), the Congress directed the General Accounting Office (GAO) to provide an independent assessment of airport development needs to it and to the National Civil Aviation Review Commission. While no one disputes that upholding the integrity of the nation's airport system requi ...
  • Terrorism and Drug Trafficking Responsibilities for Developing Explosives and Narcotics Detection Technologies
    Terrorism and Drug Trafficking: Responsibilities for Developing Explosives and Narcotics Detection Technologies
    United States. Government Accountability Office
    1997-04-01 | PDF
    This report discusses (1) the roles, responsibilities, and authority of agencies that establish policy, provide funds or oversee funding requests, and develop explosives and narcotics detection technologies; (2) mechanisms used to coordinate the joint development of technologies; and (3) efforts to strengthen detection technology development.
  • Piloted Simulation Tests of Propulsion Control as Backup to Loss of Primary Flight Controls for a B747400 Jet Transport
    Piloted Simulation Tests of Propulsion Control as Backup to Loss of Primary Flight Controls for a B747-400 Jet Transport
    Bull,John ;
    Mah, Robert
    1997-04-01 | PDF
    This report describes the concept of a propulsion controlled aircraft (PCA), discusses pilot controls, displays, and procedures; and presents the results of a PCA piloted simulation test and evaluation of the B747-400 airplane conducted at NASA Ames Research Center in December, 1996. The purpose of the tests was to develop and evaluate propulsion c ...
  • Help Educate Your Community on Air Bag Safety
    Help Educate Your Community on Air Bag Safety
    United States. Department of Transportation. National Highway Traffic Safety Administration
    1997-04-01 | PDF
    Explains why air bags can be unsafe and lists resources for more information.
  • Evaluation of speed limits in Kentucky
    Evaluation of speed limits in Kentucky.
    Agent, Kenneth R. ;
    Pigman, Jerry G.
    1997-04-01 | PDF
    No Description
  • Development of a congestion management system using GPS technology volume I
    Development of a congestion management system using GPS technology : volume I.
    Bullock, Darcy ;
    Quiroga, Cesar
    1997-04-01 | PDF
    This report describes the results of a study undertaken to demonstrate the feasibility of using global positioning system( GPS) and geographic information system (CIS) technologies to measure travel time and speed data on urban highways. Compared to more traditional approaches for conducting travel time studies, which require a significant amount o ...
  • Thermal and Mechanical Fatigue Effects on GFRP RebarConcrete Bond
    Thermal and Mechanical Fatigue Effects on GFRP Rebar-Concrete Bond
    French, C. ;
    Shield, C.
    1997-04-01 | PDF
    This report summarizes an experimental program conducted to investigate the thermal and mechanical fatigue effects on the bond between Glass Fiber-Reinforced Plastic (GFRP) rebars and concrete. Variables included in the study were rebar diameter (No. 6 and No. 4 GFRP, No. 6 steel), material (steel and GFRP) and manufacturer (two different manufactu ...
  • Behaviorbased vs systembased training and displays for automated vertical guidance
    Behavior-based vs. system-based training and displays for automated vertical guidance
    Feary, Michael ;
    Alkin, Martin
    1997-04-01 | PDF
    Aircraft automation, particularly the automation surrounding vertical navigation has been cited as an area of training difficulty and a source of confusion during operation. A number of incidents and accidents have been attributed to a lack of crew understanding of what the automation is doing. This paper describes an experiment which tested a new ...
  • Mean streets pedestrian safety and reform of the nations transportation law
    Mean streets : pedestrian safety and reform of the nation's transportation law
    Surface Transportation Policy Project  ...
    1997-04-01 | PDF
    This report, a collaborative product of the Surface Transportation PolicyProject (STPP) and the Environmental Working Group (EWG), offers competingnotions of nostalgia and of progress. Its authors argue that America's streetsonce again ought to invite and protect the pedestrian. They make the case forinvestments in a range of measures that have mad ...
  • Presidential initiative for increasing seat belt use nationwide recommendations from the Secretary of Transportation buckle up
    Presidential initiative for increasing seat belt use nationwide : recommendations from the Secretary of Transportation : buckle up!
    United States. Department of Transportation. National Highway Traffic Safety Administration
    1997-04-01 | PDF
    On December 28, 1996 President Clinton asked all Americans to always wear seat belts, and to always keep children ages 12 and under buckled in the back seat where they are safest. On January 23, 1997, he directed the Secretary of Transportation to prepare a plan to increase the use of seat belts nationwide. The President directed that the plan addr ...
  • Developing new lowtemperature admixtures for concrete a field evaluation
    Developing new low-temperature admixtures for concrete : a field evaluation
    Charest, Brian ;
    Korhonen, Charles
    1997-04-01 | PDF
    Two new admixtures, capable of preventing water from freezing, as well as increasing the hydration rate of cement at below-freezing temperatures, were field tested at Sault Ste. Marie, Michigan. Concrete made with the admixtures was placed on a frozen subgrade during a cold winter day and was allowed to cure thermally, unprotected in the cold. Comp ...
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