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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 33841 - 33860 of 35438 results
  • Evaluation of load transfer devices final report
    Evaluation of load transfer devices : final report.
    Bolourchi, Zahir ;
    Temple, William H.
    1975-11-01 | PDF
    This report describes the procedures and findings of a study conducted to evaluate two types of load transfer devices used in Louisiana--steel dowel bars and starlugs (a patented device). A statistical comparison was accomplished by evaluating existing concrete roadways with 58.5-foot (17.8-m), 30-foot (9.1-m), and 20-foot (6.1-m) slabs. The two pr ...
  • Crash Test and Evaluation of a Stiffened Metal Beam Guard Fence Median Barrier for Use Around Luminaire Supports
    Crash Test and Evaluation of a Stiffened Metal Beam Guard Fence Median Barrier for Use Around Luminaire Supports
    Marquis, E. L. ;
    Hirsch, T. J.
    1975-11-01 | PDF
    A successful full-scale vehicle crash test was conducted on a State Department of Highways and Public Transportation standard Metal Beam Guard Fence (MBGF) median barrier which had been modified to strengthen it in the vicinity of a median mounted luminaire support. Under similar crash tests the standard MBGF would have deflected laterally 1 ft (0. ...
  • Summary of Crash Cushion Experience in Texas Four Hundred Collisions in Seven Years on One Hundred ThirtyFive Installations
    Summary of Crash Cushion Experience in Texas: Four Hundred Collisions in Seven Years on One Hundred Thirty-Five Installations
    Hirsch, T. J. ;
    Nixon, John F.
    1975-11-01 | PDF
    Steel drum crash cushions (both fixed and portable) and the sand inertia barrier have made and will continue to make important contributions to the safety of our state's and nation's highways. Texas first installed the steel drum crash cushion in October 1968. As of July 1, 1975, 147 crash cushions of all types were in use on Texas highways. These ...
  • Drilling and Preparation of Reusable Long Range Horizontal Bore Holes in Rock and in Gouge Vol I StateoftheArt Assessment
    Drilling and Preparation of Reusable, Long Range, Horizontal Bore Holes in Rock and in Gouge.: Vol. I.: State-of-the-Art Assessment
    Harding, J. C. ;
    Rubin, L. A.
    1975-10-01 | PDF
    The objective of this study is to assess horizontal drilling as an alternative to pilot tunneling in geological investigation prior to the design and construction of highway tunnels and to identify means to increase the penetration capability and accuracy and decrease the cost of horizontal drilling. This volume assesses the horizontal penetration ...
  • Drilling and Preparation of Reusable Long Range Horizontal Bore Holes in Rock and in Gouge Vol II Estimating Manual for Time and Cost Requirements
    Drilling and Preparation of Reusable, Long Range, Horizontal Bore Holes in Rock and in Gouge.: Vol. II.: Estimating Manual for Time and Cost Requirements
    Mack, W. M. ;
    Tracy, N.
    1975-10-01 | PDF
    The objective of this study is to assess horizontal drilling as an alternative to pilot tunneling in geological investigation prior to the design and construction of highway tunnels and to identify means to increase the penetration capability and accuracy and decrease the cost of horizontal drilling. This volume presents a model for estimating the ...
  • State Revenue Scenarios for Different Economic Conditions and Taxation Policies
    State Revenue Scenarios for Different Economic Conditions and Taxation Policies
    McFarland, William F. ;
    Smith, Evelyn K.
    1975-10-01 | PDF
    Recent changes in basic economic conditions have had a considerable impact on state revenues available to the Texas State Department of Highways and Public Transportation (SDHPT). The historical growth pattern for revenues has been interrupted because of reduced growth in travel and numbers of vehicles. This change in the revenue growth pattern, co ...
  • Crash Test and Evaluation of a Precast Concrete Median Barrier
    Crash Test and Evaluation of a Precast Concrete Median Barrier
    Hirsch, T. J. ;
    Marquis, E. L.
    1975-10-01 | PDF
    Median barriers are used on high-volume, high-speed traffic facilities to prevent errant vehicles from crossing a median and conflicting with the opposing traffic stream. A secondary function for some designs of median barriers is to minimize the glare of opposing headlights. The cast-in-place Concrete Median Barrier (CMB) has proven to be an effec ...
  • Preliminary Control of African Rue Peganum harmala L with Various Herbicides
    Preliminary Control of African Rue (Peganum harmala L.) with Various Herbicides
    Allen, Thomas J. ;
    McCully, Wayne G.
    1975-10-01 | PDF
    Twenty-six herbicides used alone or in combinations were applied to African rue. The rate of application of each herbicide was determined by the recommended label rate. An exception was the rate of diuron applied, which surpasses the recommended label rate. Eight herbicides resulted in control of a least 50 percent of 7 1/2 months or longer. Tebuth ...
  • Citizen Participation in Airport Planning
    Citizen Participation in Airport Planning
    United States. Department of Transportation. Federal Aviation Administration
    1975-09-26 | PDF
    Provides guidance for citizen involvement in airport planning. Although not mandatory for airport grant programs, it demonstrates the need for early citizen participation.
  • Runway and Taxiway Edge Lighting System
    Runway and Taxiway Edge Lighting System
    United States. Department of Transportation. Federal Aviation Administration
    1975-09-03 | PDF
    This advisory circular describes standards for the design, installation, and maintenance of runway and taxiway edge lighting system.
  • Evaluation of Glare Reduction Techniques
    Evaluation of Glare Reduction Techniques
    Raine, W. L. ;
    Chatterton, N. E.
    1975-09-01 | PDF
    Degradation of the visual capacity of a motor vehicle driver caused by luminous 'sources' 1 on the driver's own vehicle during daylight is quantified according to luminance glare theory. Effects of driver's age and daylight conditions are considered, and a means for laboratory measurement of vehicle glare production characteristics is developed. Ba ...
  • Construction records study final report
    Construction records study : final report.
    Bizette, J. G. ;
    Roussel, Cherye R.
    1975-09-01 | PDF
    The purpose of this study was to determine the extent of change and revision necessary for efficient record keeping and to revise the record keeping process in the field, eliminating irrelevant entries. This study attempted to standardize field records which were systematically kept and to establish a consistently uniform system of office records s ...
  • Design and Construction of Compacted Shale Embankments Vol 2 Evaluation and Remedial Treatment of Compacted Shale Embankments
    Design and Construction of Compacted Shale Embankments: Vol. 2. Evaluation and Remedial Treatment of Compacted Shale Embankments
    Bragg, G. H. ;
    Zeigler, T. W.
    1975-09-01 | PDF
    The purpose of the three-phase study is to develop design and construction methodologies that will enable shales which have caused settlements and slope failure in highway embankments to be identified and used successfully in future construction. The purpose of Phase II was to develop (a) techniques for evaluating the stability of existing embankme ...
  • Automated Design of Prestressed Concrete Box Girders
    Automated Design of Prestressed Concrete Box Girders
    Jones, Harry L. ;
    James, Mike E.
    1975-09-01 | PDF
    Three computer programs have been developed or adapted to assist in the design of multi-beam prestressed concrete box girder bridges. Programs DBOXSS and DBOXDS treat girders with straight and draped strands, respectively. Each program has a "design'' option which selects. concrete release strength and strand pattern for a specified cross section a ...
  • Dynamic Vehicular Loading of the North Floodway Bridges 1975
    Dynamic Vehicular Loading of the North Floodway Bridges, 1975
    Lee, Clyde E.
    1975-09-01 | PDF
    The half-mile-long twin reinforced concrete bridges on U.S. 77 which cross the North Floodway above Harlingen, Texas, were opened to traffic in 1974. The 12-in. deck has developed an undulating longitudinal profile with sags of 1/4 to 1/2 inch in most of the 25-ft spans; thus, the riding quality is impaired, vehicles using the highway are subject t ...
  • Evaluation of retrorefletive durability of raised pavement markers final report
    Evaluation of retrorefletive durability of raised pavement markers : final report.
    Kinchen, Richard W. ;
    LeBlanc, E. J.
    1975-08-01 | PDF
    The Louisiana Department of Highways began using reflectorized raised pavement markers on a large scale basis in 1967 when such markers were placed on the Mississippi River Bridge along Route I-10 at Baton Rouge. The Department has engaged in a considerable amount of research since 1967 in order to derive the most benefit from reflectorized raised ...
  • Test using expansive cement in cement stabilized base to eliminate or prevent cracking experimental projects
    Test using expansive cement in cement stabilized base to eliminate or prevent cracking : experimental projects.
    Rodriquez, Robert
    1975-08-01 | PDF
    The purpose of this study was to determine the feasibility of using anexpansive cement, TXI 4C Chem Comp, in lieu of the regular Type I PortlandCement in a cement stabilized gravel screenings base so as to eliminateor reduce cracks associated with this type of base construction. The testwas carried out by field experimentation and observation.The r ...
  • Federal Funding of Rail Rehabilitation A Review of Alternative Approaches
    Federal Funding of Rail Rehabilitation: A Review of Alternative Approaches
    United States. Congress. Office of Technology Assessment  ...
    1975-08-01 | PDF
    This study explores the proposed mechanisms for injecting federal funds into the rehabilitation of the fixed plant of U.S. railroads--that is, the roadbed, ballast, ties, signaling systems, yards and terminals that make up the physical rail system. The study accomplishes two specific tasks: (1) it identifies and describes selected alternative fundi ...
  • Design and Construction of Compacted Shale Embankments Vol 1 Survey of Problem Areas and Current Practices
    Design and Construction of Compacted Shale Embankments: Vol. 1. Survey of Problem Areas and Current Practices
    Shamburger, J. H. ;
    Patrick, D. M.
    1975-08-01 | PDF
    The purpose of the three-phase study is to develop design and construction methodologies that will enable shales causing settlements and slope failure in highway embankments in the past to be identified and used successfully in future construction. During the first year's work (Phase I), state and federal agencies were contacted. Information obtain ...
  • Control of large commercial vehicle accidents caused by front tire failures
    Control of large commercial vehicle accidents caused by front tire failures.
    Anderson, R.L. ;
    Nidey, R.A.
    1975-08-01 | PDF
    The Federal Highway Administration of the u.s. Department ofTransportation is concerned with the loss of life, injury, andproperty damage that result from front tire failure on heavydutytrucks. The Bureau of Motor Carrier Safety contractedwith Ultrasystems, Inc., the Dynamic Science Division (ContractNo. DOT-FH-11-8562), to conduct an inve~tigation ...
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