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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 33701 - 33720 of 36710 results
  • Evaluation of the guard rail energy absorbing terminal GREAT impact attenuator final report
    Evaluation of the guard rail energy absorbing terminal (G-R-E-A-T) impact attenuator : final report.
    Walters, William C.
    1982-09-01 | PDF
    This short report evaluates as many aspects of the Guard Rail Energy Absorbing Terminal (G-R-E-A-T), a vehicle attenuator, as possible. The system was first installed on a particular bridge in September 1979 and was evaluated for three years. No impact occurred during that interval, so an evaluation of impact wortiness could not be assessed. Howeve ...
  • Increased Automobile Fuel Efficiency and Synthetic Fuels Alternatives for Reducing Oil Imports
    Increased Automobile Fuel Efficiency and Synthetic Fuels: Alternatives for Reducing Oil Imports
    United States. Congress. Office of Technology Assessment
    1982-09-01 | PDF
    This report assesses and compares increased automobile fuel efficiency and synthetic fuels production with respect to their potential to reduce conventional oil consumption, and their costs and impacts. Conservation and fuel switching as a means of reducing stationary oil uses are also considered, but in considerably less detail, in order to enable ...
  • Tolerable movement criteria for highway bridges volume I interim report
    Tolerable movement criteria for highway bridges, volume I : interim report.
    Moulton, Lyle K. ;
    Gangarao, H. V. S.
    1982-09-01 | PDF
    "The design procedure presented considers both strength and serviceability criteria. The procedure involves designing a bridge assuming no settlement will take place, using the American Association of State Highway and Transportation Officials working stress design procedure with the allowable stresses being reduced to compensate for anticipated se ...
  • Preliminary Analyses of the Behavior of Reinforced Concrete Box Culverts
    Preliminary Analyses of the Behavior of Reinforced Concrete Box Culverts
    Gardner, Mark P. ;
    Jeyapalan, Jey K.
    1982-09-01 | PDF
    The behavior of Reinforced Concrete Box Culverts under varying backfill, compaction, and traffic loads is not clearly understood. The design rules used at present are mostly empirical and do not allow for the effects of Soil-Culvert interaction. In order to have a better understanding of the field behavior of these culverts, in another research stu ...
  • Operational and Safety Effects of Driving on Paved Shoulders in Texas Executive Summary
    Operational and Safety Effects of Driving on Paved Shoulders in Texas: Executive Summary
    Fambro, Daniel B.
    1982-09-01 | PDF
    In Texas, paved shoulders are used by many drivers for a large variety of traffic maneuvers and for satisfying numerous driving task demands. Unfortunately, there is little information as to the types and frequency of this usage and the impacts and conditions under which they occur. The objective of this report is to provide answers to some of thes ...
  • Scour at culvert outlets in mixed bed materials
    Scour at culvert outlets in mixed bed materials.
    Ruff, J. F. ;
    Abt, S. R.
    1982-09-01 | PDF
    "The study of localized scour at culvert outlets has been on-going to control and manage erosion along highway embankments. Herein is presented an investigation of scour at culvert outlets which refines and extends the state-of-the-art of predicting the dimensions of scour holes. Over 100 experiments ranging from 20 to 1000 minutes in duration were ...
  • Regulatory aviation medicine its philosophies and limitations
    Regulatory aviation medicine : its philosophies and limitations.
    Jordan, Jon L. ;
    Norwood, Gordon
    1982-09-01 | PDF
    The application of aviation medicine is relatively standardized throughout the world, both in civil and military operations. Substantial differences exist, however, in the way different countries, or even different agencies in the same country, determine the medical qualifications of persons who wish to operate aircraft. As a rule, the medical cert ...
  • Costs and Characteristics of Operating Interstate Motor Carriers of Grain in North Dakota
    Costs and Characteristics of Operating Interstate Motor Carriers of Grain in North Dakota
    Griffin, Gene C. ;
    Wilson, Wesley
    1982-09-01 | PDF
    The general purpose of this study was to evaluate the performance and operating characteristics of the motor carrier industry moving North Dakota grain. Specific objectives were to: (1) identify the structure and operating characteristics of the exempt motor carrier industry; (2) identify costs of operation for exempt motor carriers; (3) evaluate i ...
  • Evaluation of Highway Safety Improvement Projects in Louisiana 19751978
    Evaluation of Highway Safety Improvement Projects in Louisiana (1975-1978)
    Bolourchi, Zamir ;
    Kemp, Sarah F.
    1982-09-01 | PDF
    The purpose of this study was to evaluate the effectiveness of Highway Safety Improvement Projects constructed by the Department during 1975 through 1978. The projects included crossover improvement, passing lane construction, drainage improvements, shoulder reconstruction, intersection improvements, and skid resistant overlays. Evaluation consiste ...
  • Golden Gate Vanpool Transportation Project Final Report
    Golden Gate Vanpool Transportation Project: Final Report
    Dorosin, Edith
    1982-09-01 | PDF
    The Golden Gate Vanpool Demonstration Project (GGVDP) was an UMTA-sponsored Service & Management demonstration project that began operations in October 1977 and terminated June 30, 1980. The grantee, Golden Gate Bridge Highway & Transportation District, is a toll bridge authority and multimodal public transportation agency in the San Francisco Bay ...
  • Maintenance of Airport Visual Aid Facilities
    Maintenance of Airport Visual Aid Facilities
    United States. Department of Transportation. Federal Aviation Administration
    1982-08-26 | PDF
    This advisory circular provides recommended guidelines for maintenance of airport visual aid facilities. Since the function of such facilities is to assist in the safe and efficient movement of aircraft during landing, takeoff, and taxiing maneuvers, it is essential that a high degree of operating reliability be maintained. To achieve this, it is n ...
  • USSR Report Transportation No 92
    USSR Report: Transportation, No. 92
    United States. Foreign Broadcast Information Service  ...
    1982-08-18 | PDF
    JPRS publications contain information primarily from foreign newspapers, periodicals and books, but also from news agency transmissions and broadcasts. Materials from foreign-language sources are translated; those from English-language sources are transcribed or reprinted, with the original phrasing and other characteristics retained.This serial re ...
  • USSR Report Transportation No 91
    USSR Report: Transportation, No. 91
    United States. Foreign Broadcast Information Service  ...
    1982-08-11 | PDF
    JPRS publications contain information primarily from foreign newspapers, periodicals and books, but also from news agency transmissions and broadcasts. Materials from foreign-language sources are translated; those from English-language sources are transcribed or reprinted, with the original phrasing and other characteristics retained.
  • Analysis of a Transportation Network Data Base
    Analysis of a Transportation Network Data Base
    Hilger, Barbara A.
    1982-08-01 | PDF
    The State of Texas has over 75,000 miles of highway on the state-maintained highway system. Data collected and stored for these on-system highways consist of roadway environmental and traffic data, detailed accident data, bridge inventory and appraisal data, railroad crossing inventory data, and construction and maintenance history data. Processing ...
  • Economic Effects of Stage Construction of the Northwest and Southwest Freeways in Houston Texas
    Economic Effects of Stage Construction of the Northwest and Southwest Freeways in Houston, Texas
    Chui, Margaret K. ;
    Memmott, Jeffery L.
    1982-08-01 | PDF
    Because of the huge costs involved, most freeways are commonly constructed in lateral and/or longitudinal stages. In the case of the former, service roads are constructed and opened to traffic before the main lanes. In the case of the latter the service roads and/or main lanes are constructed on a freeway section by section basis. No other studies ...
  • Physiological stress in air traffic controllers a review
    Physiological stress in air traffic controllers : a review.
    Melton, C.E.
    1982-08-01 | PDF
    Ten years of research on physiological stress in air traffic control specialists (ATCS's) is reviewed. Data were derived from 20 tasks involving the experimental variables of workload, shift-rotation patterns, and automation.Laboratories at the Civil Aeromedical Institute consisted of a survey of the quantity and quality of sleep in working ATCS's, ...
  • Evaluation of the Dynamic ArterialResponsive Traffic System DARTS
    Evaluation of the Dynamic Arterial-Responsive Traffic System (DARTS)
    Lee, Clyde E.
    1982-08-01 | PDF
    DARTS is an auxiliary solid-state electronic timing and switching device which can be connected directly to any modern (NEMA Standards) full-actuated traffic signal controller for the purpose of coordinating the timing of pairs of such controllers at adjacent intersections in such a way that progressive movement is provided for platoons of traffic ...
  • Analysis of Rural Public Transportation in Texas
    Analysis of Rural Public Transportation in Texas
    Nungesser, Lisa G. ;
    Nordstrom, Janet A.
    1982-08-01 | PDF
    Public transportation in rural areas and small cities is of increasing concern as various agencies compete for scarce public funds. Currently, ten Texas rural and small city transportation systems receive Section 18 funds. This report documents the findings and recommendations of the transit management evaluations performed on these ten transit sys ...
  • Estimates of Relative Mobility in Major Texas Cities
    Estimates of Relative Mobility in Major Texas Cities
    Lomax, Timothy J. ;
    Christiansen, Dennis L.
    1982-08-01 | PDF
    The major urban areas in Texas have recently experienced a period of unprecedented growth. Along with that growth came significant increases in traffic congestion with corresponding declines in urban mobility. Maintaining mobility is essential if continued economic growth is to be realized. This study uses available data to assess the seriousness o ...
  • Stabilization of Marginal Aggregates with Foamed Asphalt
    Stabilization of Marginal Aggregates with Foamed Asphalt
    Little, Dallas N. ;
    Button, Joe W.
    1982-08-01 | PDF
    Four sands and one siliceous river gravel from various regions of Texas were stabilized with foamed asphalt to produce laboratory test specimens. Strength, stiffness and stability of these specimens were measured using common laboratory testing methods. Water susceptibility, temperature susceptibility and fatigue performance of these asphalt paving ...
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