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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 31081 - 31100 of 35440 results
  • Highway Constructability Guide
    Highway Constructability Guide
    Hugo, Frederick ;
    O'Connor, James T.
    1990-07-01 | PDF
    This Guide is directed toward senior Division and District personnel at the Texas State Department of Highways and Public Transportation for the purpose of increasing their awareness of project constructability. Constructability is defined as a measure of the ease or expediency with which a facility can be constructed. Information is provided on th ...
  • Performance of jointed concretes volume II evaluation and modification of concrete pavement design and analysis models
    Performance of jointed concretes, volume II : evaluation and modification of concrete pavement design and analysis models.
    Smith, K. D. ;
    Mueller, A. L.
    1990-07-01 | PDF
    No Description
  • Report on Funding Levels and Allocations of Funds Report of the Secretary of Transportation to the United States Congress 1990
    Report on Funding Levels and Allocations of Funds: Report of the Secretary of Transportation to the United States Congress [1990]
    United States. Federal Transit Administration
    1990-06-01 | PDF
    This is the annual report called for under Section 304 of the Federal Mass Transportation Act of 1987. This provision added to Section 3 of the Urban Mass Transportation Act a new subsection (j) entitled "Report on Funding Levels and Allocations of Funds." This report proposes an allocation of the unspecified 10 percent in subparagraph (D) among th ...
  • Electronic Toll Collection Key To Solving Urban Freeway Congestion
    Electronic Toll Collection: Key To Solving Urban Freeway Congestion
    Poole, Robert W.
    1990-06-01 | PDF
    For several decades, economists have advocated direct pricing of highway use to resolve congestion problems. New technology and changing socioeconomic trends now make "congestion pricing" feasible. The key advance is electronic toll collection (ETC). ETC systems now on the market use a credit-card-size vehicle-mounted tag which can be read by roads ...
  • An Analysis of the Potential for Traffic Diversion to a Strategic Arterial System
    An Analysis of the Potential for Traffic Diversion to a Strategic Arterial System
    Mullins III, James A. ;
    Benson, Jim D.
    1990-06-01 | PDF
    This report presents the results of an analysis of strategic arterials and their effect on the travel demands of an urban region. The Texas travel demand models were used to macroscopically estimate potential demands for, and the magnitude of any reduction in travel demand on other parts of the regional transportation system due to the implementati ...
  • The 1989 Prestressed Girder Project
    The 1989 Prestressed Girder Project
    Sigl, Arden
    1990-06-01 | PDF
    The 1989 Prestressed Girder Project was undertaken to provide insight into the cause and probable effect that the cracking would have on the service life of the structures included in this report. The following are the project objectives: (1) to determine the probable cause of the cracking, (2) to determine if the presence of the cracking has reduc ...
  • Effects of Banded PostTensioning in a Prestressed Concrete Flat Slab
    Effects of Banded Post-Tensioning in a Prestressed Concrete Flat Slab
    Roschke, Paul N ;
    Inoue, Masamichi
    1990-06-01 | PDF
    A new class of flat slab concrete bridges employs bidirectional post-tensioning. While longitudinal post-tensioning is uniform, transverse tendons are concentrated in the vicinity of column lines to act as bent cap-like supports. For multi-span structures, transverse post-tensioning is limited to a series of narrow banded regions. This report, firs ...
  • Hot laid preformed patterned striping materials OR 8902 A B experimental features construction report
    Hot laid, preformed, patterned striping materials, OR 89-02 A & B : experimental features construction report.
    Rusnak, James S.
    1990-06-01 | PDF
    This construction report covers two experimental feature installations of a Permanent, Hot Laid, Preformed, Patterned, Striping Material. The permanent striping material used on these experimental feature projects is a 3M project called, "Stamark Pliant Polymer Marking Tape, series A 350". The preformed, patterned, marking tape consists of white or ...
  • Space Applications of Radioactive Materials
    Space Applications of Radioactive Materials
    SRS Technologies
    1990-06-01 | PDF
    As the regulatory agency assigned the overall responsibility for ensuring public safety from hazards associated with U.S. commercial space launch activities, Office of Commercial Space Transportation (OCST) must oversee that compliance. Licensees using Federal ranges will have to comply with established Range Safety procedures related to both regul ...
  • report
    report.
    Temple, William H. ;
    Carpenter, Walter
    1990-06-01 | PDF
    This study was undertaken to provide the LA DOTD with an implementation package to facilitate adoption of the new AASHTO Guide for Design of Pavement Structures. The study included evaluation of design parameters for rigid and flexible pavements, including several new parameters such as design reliability, resilient modulus, drainage, and use of ti ...
  • Medically Disqualified Airline Pilots in Calendar Years 1987 and 1988
    Medically Disqualified Airline Pilots in Calendar Years 1987 and 1988
    Downey, Leslie E. ;
    Dark, Shirley J.
    1990-06-01 | PDF
    This study presents comprehensive data reflecting pertinent denial rates regarding the medical and general attributes of those airline pilots denied medical certification in calendar years 1987 and 1988. The overall annual denial rate of this group is 4.3 per 1,000 active airline pilots. Age-specific denial rates for airline pilots increase to the ...
  • The Effects of Increased Salt Usage on the Chloride Concentration in South Dakota Department of Transportation Bridges and Roads
    The Effects of Increased Salt Usage on the Chloride Concentration in South Dakota Department of Transportation Bridges and Roads
    Marks, Kenneth E
    1990-05-09 | PDF
    Due to the concern for public safety during the 1988 Legislative Session, a law (HB 1162) was passed to create a winter safe highway maintenance program which included a special fund to be used for the increased salting of State highways and bridges. Departmental policy and standards were developed to apply more salt for the increased removal of sn ...
  • The Impact of State Economic Regulation of Motor Carriage on Intrastate and Interstate Commerce
    The Impact of State Economic Regulation of Motor Carriage on Intrastate and Interstate Commerce
    Allen, W. Bruce ;
    Preechemetta, Arayah
    1990-05-01 | PDF
    The purpose of this study is to show the cost impact of the remaining motor carrier regulation in the states that still impose such regulation, as well as the impacts of such regulation on interstate commerce, i.e., on consumers in states other than the regulating states. This study shows that states that continue to regulate place a considerable b ...
  • How to Read the Output Tables of the Texas Large Network Assignment Models
    How to Read the Output Tables of the Texas Large Network Assignment Models
    Chang, Duk M ;
    Gattis, Jim L
    1990-05-01 | PDF
    The Texas Travel Demand Package is a series of computer programs to generate, distribute, and assign roadway trips. The Texas Large Network Assignment Models is a collection of computer programs designed to assign traffic to transportation networks; it is one part of the Texas Travel Demand Package. Several special features are available in the Tex ...
  • Catalog of Work Zone Speed Control Methods
    Catalog of Work Zone Speed Control Methods
    Ullman, Gerald L. ;
    Riesland, David A.
    1990-05-01 | PDF
    This report presents a catalog of available speed control methods for work zones. Information contained in the report comes from three sources: a literature review, a telephone survey of SDHPT District personnel, and field studies of radar transmitters at work zones. The objective of the catalog is to present a synthesis of research concerning the ...
  • Aesthetically Pleasing Steel Pipe Bridge Rail Texas Type T421
    Aesthetically Pleasing Steel Pipe Bridge Rail - Texas Type T421
    Hirsch, T. J. ;
    Buth, C. E.
    1990-05-01 | PDF
    Research has developed railings to withstand impact loads from vehicles of ever-increasing size; however aesthetic considerations have been overshadowed by safety and structural requirements. The objective of this research study was to develop aesthetically pleasing, structurally sound railings that can serve as alternative railings in city or urba ...
  • Present Practices of Highway Transportation of Hazardous Materials
    Present Practices of Highway Transportation of Hazardous Materials
    Harwood, D.W. ;
    Russell, Eugene R.
    1990-05-01 | PDF
    This report summarizes the state of the art of safe management materials transportation by highway. The report includes a review of literature related to hazardous materials transportation safety; a review of the responsibilities and current practices of Federal, State, and local agencies; a critique of current sources of accident, incident, and ex ...
  • Piezoelectric automatic vehicle classification system Oregon Department of Transportation with Castle Rock Consultants for a SHRP Long Term Pavement Performance Site
    Piezo-electric automatic vehicle classification system : Oregon Department of Transportation with Castle Rock Consultants for a SHRP Long Term Pavement Performance Site.
    Laylor, H. M.
    1990-05-01 | PDF
    Oregon has twelve sites that are part of the Strategic Highway Research Program (SHRP), Long Term Pavement Performance (LTPP) studies. Part of the data gathering on these sites involves vehicle weight and classification. This pilot project was to help SHRP show others how to specify, procure and install equipment that would provide the necessary da ...
  • Data Link Test and Analysis SystemATCRBS Transponder Test System Technical Reference
    Data Link Test and Analysis System/ATCRBS Transponder Test System Technical Reference
    Van Dongen, John
    1990-05-01 | PDF
    This document references material for personnel using or making software changes to the Data Link Test and Analysis System (DATAS) for Air Traffic Control Radar Beacon System (ATCRBS) transponder testing and data collection. This is one of a series of documents to be published on DATAS. Included in this document is a brief overall description of th ...
  • Brittleductile transition of steel bridges volume I final report
    Brittle-ductile transition of steel bridges, volume I : final report.
    Ripling, E.J. ;
    Crosley, P.B.
    1990-05-01 | PDF
    The transition behavior of bridge steels and weldments largely determines the ir toughness underservice loading rates and temperatures. Two aspects of the transition were investigated in thisproject: The first was to develop a better understanding of the micro-mechanics of fracture ofbridge steels and welds. This study showed that the AASHTO yield ...
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