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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 33941 - 33960 of 36710 results
  • An analysis of civil aviation propellertoperson accidents 19651979
    An analysis of civil aviation propeller-to-person accidents : 1965-1979.
    Collins, William E. ;
    Mastrullo, Angelo R.
    1981-05-01 | PDF
    The interest of manufacturing, governmental, and safety personnel using paint schemes on propeller and rotor blades is based on improving the visual conspicuity of those blades when they are rotating. While propeller and rotor paint schemes may serve to reduce the number of fatalities and injuries due to contact with a rotating blade there is littl ...
  • Factors related to the welfare of animals during transport by commercial aircraft
    Factors related to the welfare of animals during transport by commercial aircraft.
    Hanneman, Gerald D.
    1981-05-01 | PDF
    This report contains a brief history of the transportation of animals by air. It describes how various organizations contributed to the safe and humane care of animals during transport and how regulations to insure safer shipping conditions were developed by the United States Department of Agriculture. The two classes of cargo spaces in large aircr ...
  • Effects of Roadway Improvements on Adjacent Land Use An Aggregative Analysis and the Feasibility of Using Urban Development Models
    Effects of Roadway Improvements on Adjacent Land Use: An Aggregative Analysis and the Feasibility of Using Urban Development Models
    Rollins, John B. ;
    Memmott, Jeffery L.
    1981-05-01 | PDF
    The effect of improving existing urban roadways on surrounding land use is an important consideration in highway agency decisions regarding roadway improvements. Such decisions should consider the economic impact of proposed improvements. In an effort to identify the kinds of effects which urban roadway improvements have on surrounding land use ove ...
  • Improving the crashworthiness of general aviation aircraft by crash injury investigations
    Improving the crashworthiness of general aviation aircraft by crash injury investigations.
    Kirkham, William R.
    1981-05-01 | PDF
    An accident investigative research program has correlated injuries to aircraft occupants with the accident severity and structural changes in the crash. Findings brought to the attention of aircraft manufacturers have led to specific aircraft being made more crashworthy. Following the finding of a failure in a shoulder harness attachment the manufa ...
  • Evaluation of questionnaire on pay adjustment factors for asphalt concrete mixtures
    Evaluation of questionnaire on pay adjustment factors for asphalt concrete mixtures.
    Moore, Richard M. ;
    Wilson, James E.
    1981-05-01 | PDF
    In an effort to collect information on the status of quality control procedures and the use of pay adjustment factors, a questionnaire was distributed to all state agencies, the District of Columbia, and the Federal Highway Administration. Each agency was asked to respond to questions describing their current method for acceptance or rejection of a ...
  • Evaluation of flexible plastic glare shield in Oregon
    Evaluation of flexible plastic glare shield in Oregon.
    Anderson, Judy ;
    Beecroft, Gordon
    1981-05-01 | PDF
    This experimental features project was approved by the Department of Transportation, Federal Highway Administration, on July 11, 1973. A four-mile section of flexible plastic glare screen was installed on top of the existing concrete median barrier on the Baldock Freeway in September of 1974. This is a six-lane, high-volume section with lineal illu ...
  • National Urban Mass Transportation Statistics First Annual Report Section 15 Reporting System May 1981
    National Urban Mass Transportation Statistics: First Annual Report Section 15 Reporting System [May 1981]
    Morin, Stephen J.
    1981-05-01 | PDF
    This report summarizes the financial and operating data submitted annually to the Urban Mass Transportation Administration (UMTA) by the nation's public transit operators, pursuant to section 15 of UMTA Act of 1964, amended. The report consists of two sections: Section 1 contains industry aggregate statistics only, while Section 2 contains detailed ...
  • Impact of variation in materials properties on asphalt pavement life evaluation of a questionnaire
    Impact of variation in materials properties on asphalt pavement life : evaluation of a questionnaire.
    Moore, Richard M. ;
    Wilson, James E.
    1981-05-01 | PDF
    In an effort to collect information on the status of quality control procedures and the use of pay adjustment factors, a questionnaire was distributed to all state agencies, the District of Columbia, and the Federal Highway Administration. Each agency was asked to respond to questions describing their current method for acceptance or rejection of a ...
  • The Future of Wheat Transportation to the Pacific Northwest From North Dakota and Montana
    The Future of Wheat Transportation to the Pacific Northwest From North Dakota and Montana
    Griffin, Gene C.
    1981-05-01 | PDF
    The Pacific Northwest ports serve as terminal markets and export locations for significant amounts of hard red spring and hard red winter wheat produced in North Dakota and Montana. The wheat movements to the PNW from this origin territory involve several modes; rail, truck and barge. What modes or combinations will dominate in the future movement ...
  • Sight Distance Requirements at Lane Closure Work Zones on Urban Freeways
    Sight Distance Requirements at Lane Closure Work Zones on Urban Freeways
    Richards, Stephen H. ;
    Dudek, Conrad L.
    1981-04-01 | PDF
    This report presents the findings of field studies conducted to evaluate the effects of sight distance to lane closures at urban freeway work zones. These studies investigated the interaction of sight distance with traffic volume and various work zone traffic control features (e.g., advance signing and arrowboards). The studies were/conducted at 16 ...
  • Traffic Capacity Through Work Zones on Urban Freeways
    Traffic Capacity Through Work Zones on Urban Freeways
    Dudek, Conrad L. ;
    Richards, Stephen H.
    1981-04-01 | PDF
    This report summarizes findings of capacity studies conducted at urban freeway maintenance and construction work zones in Houston and Dallas. Studies were conducted on 5-, 4-, and 3-lane freeway sections. The results indicate that the per lane capacities are affected by the number of lanes open during the roadwork. For example, the average capacity ...
  • Agerelated differences in complex monitoring performance
    Age-related differences in complex monitoring performance.
    Thackray, Richard I. ;
    Touchstone, R. Mark
    1981-04-01 | PDF
    The present study examined the effect of age on the ability to sustain attention to a complex monitoring task. The visual display was designed to resemble an air traffic control radar display containing alphanumeric symbols. Subjects in age groups 18-29, 40-50, and 60-70 years were tested over a 2-hour session. Sixteen symbols appeared on the scree ...
  • Physiological biochemical and performance responses to a 24hour crash diet
    Physiological, biochemical, and performance responses to a 24-hour crash diet.
    Higgins, E. Arnold ;
    Mertens, Henry W.
    1981-04-01 | PDF
    Twelve overweight male subjects were evaluated once on a normal diet and once on a 24-h crash diet and (low calorie liquids only). Experiments were 1 wk apart. During 2 1/4-h complex performance tests given at the end of the diet period, subjects breathed an O2/N2 gas mixture equivalent to 12,500 ft.There were no significant physiological and bioch ...
  • Prevalence of selected pathology among currently certified active airmen
    Prevalence of selected pathology among currently certified active airmen.
    Booze, Charles F.
    1981-04-01 | PDF
    It has been the policy of the Federal Aviation Administration to medically certify individuals, for a variety of flying privileges, who also have medical deficiency or disease, provided it can be determined that such action does not comprise air safety. During recent years, for example, standards have been relaxed with respect to contact lens use a ...
  • Fatigue in Flight Inspection Field Office FIFO flight crews
    Fatigue in Flight Inspection Field Office (FIFO) flight crews.
    Melton, C.E. ;
    McKenzie, J.M.
    1981-04-01 | PDF
    Studies related to FIFO aircrew stress and fatigue were carried out at seven FIFO's in the Continental U.S. Forty-one men served as subjects and all crew positions were presented. Each crewmember was studied during flight activities and during office-based activities.Generally, crews were in travel status during flight inspection activities and awa ...
  • Field Evaluation of Flashing Arrowboards at Freeway Work Zones
    Field Evaluation of Flashing Arrowboards at Freeway Work Zones
    Faulkner, Michael J. S. ;
    Dudek, Conrad L.
    1981-04-01 | PDF
    This report documents research conducted in the evaluation of flashing arrowboards when located in advance of lane closure work zones. The effects of advance arrowboard placement were compared to the effectiveness of the arrowboard placement normally used by District 14 of the SDHPT. The research indicates that arrowboard placement in advance of th ...
  • Selected Technical and Economic Comparisons of Synfuel Options
    Selected Technical and Economic Comparisons of Synfuel Options
    E.J. Bentz & Associates
    1981-04-01 | PDF
    This study is a comparative technical and economic assessment of selectedsynfuel technologies. It contains papers written for Office of TechnologyAssessment (OTA) to assist in preparation of the report "Increased AutomobileFuel Efficiency and Synthetic Fuels: Alternatives for Reducing Oil Imports." Akey purpose of this study is to provide technical ...
  • Analyses Experimental Studies and Evaluations of Control Measures for Air Flow and Air Quality On and Near Highways Vol I Experimental Studies Analyses and Model Development
    Analyses, Experimental Studies, and Evaluations of Control Measures for Air Flow and Air Quality On and Near Highways: Vol I -- Experimental Studies, Analyses, and Model Development
    Dabberdt, Walter F. ;
    Shelar, Eugene
    1981-03-01 | PDF
    Experimental and theoretical investigations have been made of meteorological and air quality conditions near a broad range of complex roadway configurations. These are described, and some new insights into the interrelationships among traffic, meteorology, and configuration are discussed. The development of a new and versatile dispersion model, cal ...
  • Methods for assessment of streamrelated hazards to highways and bridges
    Methods for assessment of stream-related hazards to highways and bridges.
    Shen, H. W. ;
    Schumm, S. A.
    1981-03-01 | PDF
    particular river reach, but also on the behavior of the entire fluvialsystem of which it is a part. Rivers are complex landforms. A simple andstraight forward approach to the identification of river hazards is not alwayspossible. A complete evaluation of hydraulic hazards cannot be solely basedon on-site hydrologic, hydraulic and geomorphic factors ...
  • Stream channel degradation and aggradation analysis of impacts to highway crossings
    Stream channel degradation and aggradation : analysis of impacts to highway crossings.
    Brown, S. A. ;
    McQuivey, R. S.(Raul S.)
    1981-03-01 | PDF
    "Aggradation and degradation are long-term changes in stream channel elevation. The effects of gradation changes are not the same as local scour or erosion because they extend greater distances along the stream-bed. Degradation is a more common problem than aggradation and in general, has a more severe impact on highway crossings. Although gradatio ...
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