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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 34501 - 34520 of 36710 results
  • Activities Relating to Title II Ports and Waterways Safety Act of 1972 January 1979
    Activities Relating to Title II Ports and Waterways Safety Act of 1972 January 1979
    United States. Coast Guard
    1979-01-01 | PDF
    This is the seventh annual report submitted pursuant to section 203 of the Ports and Waterways Safety Act of 1972. This Act was amended by the Port and Tanker Safety Act of 1978 enacted October 17, 1978 (Public Law 95-474). Future annual reports to Congress will be in accordance with this amendment.
  • An Advanced Retarder Control Algorithm Preliminary Concept Design 1
    An Advanced Retarder Control Algorithm: Preliminary Concept Design 1
    Wong, Peter J
    1978-12-28 | PDF
    Current retarder control algorithms consider only the “characteristics” of the car to be controlled in determining how to control the car. This type of control policy is simple to implement, however its performance is conservative since it is based on either nominal or worst-case assumptions about what the car ahead is doing. Herein we attempt to c ...
  • Yard Geometric Design
    Yard Geometric Design
    Sakasita, Masami
    1978-12-19 | PDF
    The purpose of this informal working note is to describe basic requirements on railroad yard geometric design. This yard geometric design document has been derived from conversations with yard design experts in the U.S. In the future this note will be rearranged and combined with the previous working note on yard hardware.
  • Preliminary Statistical Study of Elkhart Rolling Resistance Data
    Preliminary Statistical Study of Elkhart Rolling Resistance Data
    Stock, William A
    1978-12-06 | PDF
    This note reports a preliminary statistical study of rolling resistance data from ConRail’s Elkhart, Indiana yard October 25 and 26, 1978 by Messrs. Jim Wetzel, Jack Delancy and Gerald Brubaker of ConRail. The data consists of three separate test runs of cars switched over the hump and rolled into a single destination class track. The analysis cons ...
  • The protection effectiveness of waterproof membrane systems on bridge decks in Louisiana final report
    The protection effectiveness of waterproof membrane systems on bridge decks in Louisiana : final report.
    Ross, Joseph E. ;
    Law, Sheldon M.
    1978-12-01 | PDF
    The effects of de-icing salts on concrete and reinforcing steel is well documented, and efficient methods of protection from the penetrating chloride ions have long been sought. Concrete bridge decks need the protection, and waterproofing the concrete appeared to be a possible answer to this problem. With the development of waterproof membrane syst ...
  • A five year performance summary of fibrous PC concrete overlay research in Greene County Iowa
    A five year performance summary of fibrous P.C. concrete overlay research in Greene County, Iowa.
    Betterton, Ronald H. ;
    Knutson, M. J.
    1978-12-01 | PDF
    No Description
  • Air traffic controller health change study a prospective investigation of physical psychological and workrelated changes
    Air traffic controller health change study : a prospective investigation of physical, psychological and work-related changes.
    Rose, Robert M. ;
    Jenkins, C. David
    1978-12-01 | PDF
    The main goal of the Study was to determine the nature and extent of health changes in the Air Traffic Controllers and by what characteristics these health changes might be predicted.
  • Design and Construction of Compacted Shale Embankments Vol 5 Technical Guidelines
    Design and Construction of Compacted Shale Embankments: Vol. 5. Technical Guidelines
    Strohm, William E. ;
    Bragg, G. H.
    1978-12-01 | PDF
    This fifth report provides guidance on geological investigations, durability classification of shales, design features, and construction procedures unique to compacted shale embankments for highways. Guidance is also given on techniques for evaluating existing shale embankments and remedial treatment methods for distressed shale embankments. Index ...
  • Experimental Verification of a Pneumatic Transport System for the Rapid Excavation of Tunnels Part II Test Program
    Experimental Verification of a Pneumatic Transport System for the Rapid Excavation of Tunnels: Part II - Test Program
    Martin, James W. ;
    Faddick, Robert R.
    1978-12-01 | PDF
    The objective of the study was to evaluate a pneumatic pipeline system for muck haulage from a tunnel excavated by a tunnel boring machine. The system was comprised of a muck preparation unit, solids feeder and air blower, telescoping pipes and 500 feet of 10- inch diameter pipe. The system transported up to 100 tph of simulated tunnel muck with ma ...
  • Public Transit Risk Management A Handbook for Public Transit Executives
    Public Transit Risk Management: A Handbook for Public Transit Executives
    Ryland, V.W.
    1978-12-01 | PDF
    Transit is seen by insurers as a risk with high loss potential. Since people are transported in large numbers, a single accident may yield many claims. One solution to this insurance situation that has been employed by transit system operators is to assume some of the risk of potential loss themselves. The handbook introduces risk management to tra ...
  • Queen City Metro Media Habits Study
    Queen City Metro Media Habits Study
    Action Data, Inc.
    1978-12-01 | PDF
    This report summarizes findings of Media Habits research conducted for Queen City Metro during November 1978. The purpose of this research is to profile media habits--television viewer ship, radio listenership, and newspaper readership--among current riders. The objective of this study is to provide media direction in order to more efficiently and ...
  • The effects of highway noise on residential property values in Louisiana final report
    The effects of highway noise on residential property values in Louisiana : final report.
    Derbes, Max J. ;
    Cramer, George H.
    1978-11-30 | PDF
    The purpose of this study was to ascertain if residential properties subjected to highway noise levels in excess of FHWA Guidelines experienced a diminution in-value. Both signle family homes and apartments in close proximity to Interstate highways, and fronting on major arterial collector roads were compared to similar units in the same vicinity n ...
  • Preliminary Thoughts on Simulating the Operational Logic of a Conventional Retarder System Using Profile
    Preliminary Thoughts on Simulating the Operational Logic of a Conventional Retarder System Using Profile
    SRI International
    1978-11-29 | PDF
    This note discusses preliminary thoughts on incorporating the logic to represent a conventional retarder yard system into PROFILE. PROFILE is the SRI-developed hump yard profile simulation model and was described in the Appendix to Informal Note #4. Currently, PROFILE does not simulate the logic by which the retarder system determines how much ener ...
  • A Communications TradeOff Study for Computerized Traffic Control Vol 1 Final Report
    A Communications Trade-Off Study for Computerized Traffic Control: Vol. 1, Final Report
    Scott, J. ;
    Gordon, R.
    1978-11-22 | PDF
    The goal of this study is to provide information that will be useful in reducing costs of future computerized urban traffic control systems. The final report provides such information in the form of tutorial and reference material, cost computation procedures, and an example of a communication subsystem specification. The report consists of two vol ...
  • Preliminary Thoughts on Simulating the Dowty System Using Profile
    Preliminary Thoughts on Simulating the Dowty System Using Profile
    Stock, William A
    1978-11-15 | PDF
    This note discusses preliminary thoughts on modifying the SRI developed hump yard profile simulation, PROFILE, to simulate the Dowty retarder system. This simulation model has the capacity of simulating the roll of individual cars from the hump into the classification track, including the operation of the conventional retarder system. This model is ...
  • A Communications TradeOff Study for Computerized Traffic Control Vol 2 Appendixes
    A Communications Trade-Off Study for Computerized Traffic Control: Vol. 2, Appendixes
    Scott, J. ;
    Gordon, R.
    1978-11-12 | PDF
    The goal of this study is to provide information that will be useful in reducing costs of future computerized urban traffic control systems. The final report provides such information in the form of tutorial and reference material, cost computation procedures, and an example of a communication subsystem specification. The report consists of two vol ...
  • Preliminary Sensitivity Analysis of System Response to Conventional Retarder Operation
    Preliminary Sensitivity Analysis of System Response to Conventional Retarder Operation
    Stock, William A
    1978-11-06 | PDF
    This note documents a simple sensitivity analysis showing system response, as measured by distance headway, as a function of rolling resistance. Included in the response is the intervention effect of a typical conventional retarder logic system. The computer simulation runs used the SRI-developed PROFILE simulation model and were based on the exist ...
  • Task force on deterrence of air piracy final report
    Task force on deterrence of air piracy : final report.
    Reighard, H.L. ;
    Dailey, John T.
    1978-11-01 | PDF
    In February 1969, as the frequency of hijacking of U.S. air carrier aircraft was rising to an all-time high, the Federal Aviation Administration established a multi-disciplinary Task Force on Deterrence of Air Piracy. The work of the Task Force in developing an airline passenger pre-boarding screening system and other actions to deter hijacking is ...
  • Land Use Impact of Widening North Texas Avenue in a Developing Area of Bryan Texas
    Land Use Impact of Widening North Texas Avenue in a Developing Area of Bryan, Texas
    Cosby, Pamela J. ;
    Womack, Katie N.
    1978-11-01 | PDF
    Previous studies on the effects of highway construction upon land use have focused mainly upon the effects of the construction of new highways. In view of a new emphasis upon upgrading and expanding existing facilities rather than building new ones, the need arises for information concerning the effects of such improvements upon land use. This info ...
  • Effectiveness of Alternative Skid Reduction Measures Volume IV Criteria For Improvement of Pavement Surface Macrotexture
    Effectiveness of Alternative Skid Reduction Measures: Volume IV: Criteria For Improvement of Pavement Surface Macrotexture
    Blackburn, Robert R. ;
    Hardwood, D. W.
    1978-11-01 | PDF
    This volume presents a guide to the role of pavement macrotexture in pavement skid resistance and accidents. An overview of the fundamentals of tire-pavement skid resistance is presented. The methods of measuring macrotexture in the field and in the laboratory are described based on a review of relevant literature. The measurement methods currently ...
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