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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 31101 - 31120 of 35440 results
  • Access to Space The Future of US Space Transportation Systems
    Access to Space : The Future of U.S. Space Transportation Systems
    United States. Congress. Office of Technology Assessment
    1990-04-01 | PDF
    The United States now has an operating, mixed fleet comprised of reusable Space Shuttle orbiters and expendable launch vehicles (ELVs). The government and the private sector have invested in new launch technologies and established a fledgling private launch services industry. Yet concerns over launch system reliability, operability, capacity, and c ...
  • An Ergonomic Investigation of Hand Switch Operation
    An Ergonomic Investigation of Hand Switch Operation
    Page, George B ;
    McMahan, Paul B
    1990-04-01 | PDF
    About 4 percent of all lost time injuries in the railroad industry are associated with the operation of hand switches. These injuries cost about $30 million a year in claims. We investigated the operation of vertically operated, ground level switch stands. We used biomechanics to evaluate methods workers use to operate this type of switch stand. We ...
  • Annual Report of the Maritime Administration for Fiscal Year 1989 MARAD 1989
    Annual Report of the Maritime Administration for Fiscal Year 1989 [MARAD 1989]
    United States. Department of Transportation. Maritime Administration
    1990-04-01 | Annual Reports of the Maritime Administration | PDF
    The Annual Report of the Maritime Administration (MARAD) for the fiscal year which ended on September 30, 1989, is submitted to the Congress in accordance with Section 208 of the Merchant Marine Act, 1936, as amended. It incorporates reports required by the Congress on the following topics: acquisition of obsolete vessels in exchange for vessel tra ...
  • Generic Small Sign Support System and Validation of Acceptable Support Performance
    Generic Small Sign Support System and Validation of Acceptable Support Performance
    Morgan, James R. ;
    Breaux, L. Dwayne
    1990-04-01 | PDF
    Small sign systems include everything from stop signs and delineator posts to signs up to about 25 square feet. In some cases, multiple small sign support systems are used to support much larger signs (40-50 square feet). This broad class of sign has been and is currently being used along Texas highways. To ensure the safety of vehicle occupants, t ...
  • Application Guide for the Microcomputer Version of PASSER III88
    Application Guide for the Microcomputer Version of PASSER III-88
    Fambro, Daniel B. ;
    Bonneson, James A.
    1990-04-01 | PDF
    This report describes the Applications Guide for the microcomputer version of PASSER III- 88, a practical computer program designed to assist transportation engineering professionals in the analysis of pretimed or traffic-responsive, fixed-sequence signalized diamond interchanges. The program can evaluate existing or proposed signalization strategi ...
  • Indepth study of cold inplace recycled pavement performance interim report
    In-depth study of cold in-place recycled pavement performance : interim report.
    Scholz, Todd V. ;
    Hicks, R. Gary
    1990-04-01 | PDF
    No Description
  • Testing and evaluation of sign support with cluster attachments
    Testing and evaluation of sign support with cluster attachments.
    Mak, King K. ;
    Campise, P. E.
    1990-04-01 | PDF
    Two full-scale crash tests were conducted on the Louisiana two-post, inclined, slip-base sign assembly with cluster sign attachment. These two tests were performed and evaluated in accordance with guidelines under NCHRP Report 230 and standards established in the 1985 AASHTO "Standard Specifications for Structural Supports for Highway Signs, Lumina ...
  • Case Studies of Two NonOverlay Cathodic Protection Systems for Bridge Decks
    Case Studies of Two Non-Overlay Cathodic Protection Systems for Bridge Decks
    Picozzi, Orlando E. ;
    Frank, Allen C.
    1990-03-01 | PDF
    Impressed-current cathodic protection systems were installed on two steel-reinforced concrete bridge decks. Primary anodes for both were composites of platinum-niobium wire and conductive polymer grout, bonded into sawed slots in the concrete surface. Secondary anodes were conductive carbon strands and conductive polymer grout bonded into sawed slo ...
  • Rebuilding the foundations a special report on state and local public works financing and management
    Rebuilding the foundations : a special report on state and local public works financing and management
    United States. Congress. Office of Technology Assessment
    1990-03-01 | PDF
    In 1988, prompted by the many national studies calling for more investment inpublic works infrastructure, Congress asked the Office of Technology Assessment(OTA) to evaluate how technologies, management, and financing could improvepublic works and make them more efficient and productive. From the outset,OTA planned to review State and local public ...
  • The Status and Effectiveness of the Houston Transitway System 1989
    The Status and Effectiveness of the Houston Transitway System, 1989
    Christiansen, Dennis L. ;
    Morris, Daniel E.
    1990-03-01 | PDF
    This report evaluates the operati9n of the Houston freeway transitway system through calendar year 1989. As of the end of 1989, transitways were in operation on the following four Houston freeways: Katy Freeway (I-10); North Freeway (I-45); Northwest Freeway (US 290); and Gulf Freeway (I-45). Prior to 1988, individual research reports had been prep ...
  • Evaluation of asphalt stripping tests
    Evaluation of asphalt stripping tests.
    Dickinson, Linda L. ;
    Blachly, Andrew T.
    1990-03-01 | PDF
    No Description
  • Wind Drag Coefficients for Octagonal Cylinders
    Wind Drag Coefficients for Octagonal Cylinders
    Mehta, Kishor C. ;
    Ritchie, David L.
    1990-03-01 | PDF
    Highway signs, luminaires, and traffic signal structures are exposed to wind loads throughout their lives. The design of the cross section, thus the amount of material and method of fabrication, very often is controlled by wind loads. Improved definitions of wind loads using drag coefficients make luminaires not only more economical but also more r ...
  • Modification and Evaluation of SENTRE Impact Attenuation Devices
    Modification and Evaluation of SENTRE Impact Attenuation Devices
    Williams, Gary G
    1990-03-01 | PDF
    This report covers a study of SENTRE Impact Attenuation Devices, done to identify potential design or installation improvements, to make these improvements, and evaluate performance of the devices once the indicated modifications were made. During the study, a total of 21 SENTRE devices were installed on I-40 in Oklahoma City. Ten accidents involvi ...
  • Flight Instructor Practical Test Standards for Instrument Airplane Helicopter
    Flight Instructor Practical Test Standards for Instrument - Airplane, Helicopter
    United States. Federal Aviation Administration. Flight Standards Service
    1990-03-01 | PDF
    The Flight Instructor - Instrument (Airplane and Helicopter) Practical Test Standards book has been published by the Federal Aviation Administration (FAA) to establish the standards for the flight instructor certification and instrument rating practical tests for the airplane category and the rotorcraft category/helicopter class. FAA inspectors and ...
  • Development of design criteria for prevention of slope failures design guide
    Development of design criteria for prevention of slope failures : design guide.
    Mutchler, Jack W. ;
    Smith, Schaun M.
    1990-03-01 | PDF
    A total of 242 embankments were examined along a 122-mile transect of I-10 and I-20 highways in Louisiana. A total of 99 slope failures had occurred 8-15 years after construction (mean volume = 15,105 cu ft). Most of the failures occurred on slopes greater than 16 deg. Over 70% of the failures were found in modern alluvium parent material as compar ...
  • Serb guardrail inservice evaluation S Ashland to California State Line FAP IR5111300 Jackson County experimental features constructionreport
    Serb guardrail in-service evaluation : S. Ashland to California State Line, F.A.P. IR-5-1(113)00, Jackson County : experimental features construction-report.
    Rusnak, James S. ;
    Scholl, Lewis G.
    1990-03-01 | PDF
    This report covers the installation of two Self-Restoring Barrier (SERB) guardrails on Interstate-5 south of Ashland Oregon. The SERB design was developed to reduce repair cost and increase safety when compared to conventional barriers. This is accomplished by a design that allows the rail to deflect up and back on impact. This allows the vehicle t ...
  • Studies of Poststrike Air Traffic Control Trainees III Changes in Demographic Characteristics of Academy Entrants and Biodemographic Predictors of Success in Air Traffic Controller Selection and Academy Screening
    Studies of Poststrike Air Traffic Control Trainees: III. Changes in Demographic Characteristics of Academy Entrants and Biodemographic Predictors of Success in Air Traffic Controller Selection and Academy Screening
    Collins, William E. ;
    Manning, Carol A.
    1990-03-01 | PDF
    A Biographical Questionnaire (BQ) was completed by 3,578 air traffic control students who entered the F M Academy between October 1985 and September 1987. The demographic characteristics of these more recent Academy trainees (from a more stabilized poststrike selection process) were compared with two previous groups of Academy entrants. The impact ...
  • Operational evaluation of initial data link air traffic control services Vol 2 Appendixes
    Operational evaluation of initial data link air traffic control services, Vol. 2 - Appendixes
    Talotta, Nicolas J., et al.
    1990-02-01 | PDF
    This report details the results of an operational evaluation of Initial DataLInk Air Traffic Control (ATC) Services. The Operational Evaluation wasconducted at the Federal Aviation Administration (FAA)Technical Center utilizingthe Data Link test bed. Initial Data Link services were evaluated in order toidentify service delivery methods which optimi ...
  • Crash Tests of Work Zone Traffic Control Devices
    Crash Tests of Work Zone Traffic Control Devices
    Bryden, James E.
    1990-02-01 | PDF
    Full-scale vehicle crash tests evaluated performance of typical work zone traffic control devices. Modified test procedures and evaluation criteria from NCHRP Report 230 were used in 108 tests, providing significant insight into impact performance. Plastic drums used as channelizing devices, cones, tubes, and vertical panels performed well in most ...
  • Operational evaluation of initial data link air traffic control services Vol 1
    Operational evaluation of initial data link air traffic control services, Vol. 1
    Talotta, Nicholas J., et al.
    1990-02-01 | PDF
    This report details the results of an operational evaluation of Initial Data Link Air Traffic Control (ATC) Services. The Operational Evaluation was conducted at the Federal Aviation Administration (FAA) Technical Center utilizing the Data Link test bed. Initial Data Link services were evaluated in order to identify service delivery methods which o ...
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