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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 33081 - 33100 of 35440 results
  • Readability of selfilluminated signs in a smokeobscured environment
    Readability of self-illuminated signs in a smoke-obscured environment.
    Rasmussen, P.G. ;
    Garner, J.D.
    1979-11-01 | PDF
    This study investigates the ability of people with normal distant visual acuity to identify self-illuminated emergency signs in a smoke-obscured environment. The results indicate that signs whose background luminance meets or exceeds the requirements of Federal Aviation Regulation (FAR) 25.812 are readable under favorable conditions when the total ...
  • Image
    Not
    Available
    Technology assessment of changes in the future use and characteristics of the automobile transportation system. Volume 3 : public participation
    United States. Congress. Office of Technology Assessment
    1979-10-01 | PDF
    An assessment of the future use and characteristics of the automobile transportation system was undertaken (1976-78) by OTA at the request of Senator Warren G. Magnuson, then Chairman of the Senate Committee on Commerce, Science, and Transportation. The study addressed issues and policy options pertaining to mobility, energy, environment, safety, a ...
  • Land Use Impact of Improving Section Two of FarmtoMarket Road 157 in a Developing Area of Arlington Texas
    Land Use Impact of Improving Section Two of Farm-to-Market Road 157 in a Developing Area of Arlington, Texas
    Cosby, Pamela J. ;
    Buffington, Jesse L.
    1979-10-01 | 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 repo ...
  • Evaluation of Low Pressure Sodium Vapor Illumination
    Evaluation of Low Pressure Sodium Vapor Illumination
    Jones, H. Dexter ;
    Bynum, Thad
    1979-10-01 | PDF
    Low Pressure Sodium (LPS) roadway illumination systems of 35, 55, 90, 135 and 180 watts were studied and compared to Mercury Vapor (MV) and High Pressure Sodium (HPS) roadway illumination systems. Systems of 180-watt LPS, 400-watt HPS, and 1000-watt MV, and systems of 135-watt LPS, 250-watt HPS, and 400-watt MV are compared with respect to photomet ...
  • The Measurement and Analysis of Resuspended Dust from Roadways in Texas
    The Measurement and Analysis of Resuspended Dust from Roadways in Texas
    Bullin, J. A. ;
    Moe, R. D.
    1979-10-01 | PDF
    Airborne particulate concentrations along Texas roadways were monitored at four sites in three cities. The instrumentation used for this study consisted of ten stacked filter units, eight flow controlled high volume air samplers, and four Lundgren impactors. Instruments were placed 150 ft. (45.7 m) upwind and at assorted distances up to 300 ft. (91 ...
  • Evaluation of interior and exterior latex paints final report
    Evaluation of interior and exterior latex paints : final report.
    Azar, David G. ;
    Graves, W. E.
    1979-10-01 | PDF
    The wood panels that have only one coat of paint over bare wood and one coat of paint over primed wood are continuing to show sighs of deterioration. The wood panels that have two coats of paint over bare wood and two coats of paint over primed wood are deteriorating at a different rate for certain paints than presented in the third report.These re ...
  • Effects of ozone on exercising and sedentary adult men and women representative of the flight attendant population
    Effects of ozone on exercising and sedentary adult men and women representative of the flight attendant population.
    Higgins, E.A. ;
    Lategola, M.T.
    1979-10-01 | PDF
    Three studies at two ozone concentrations have been carried out in an attempt to define the effect level for ozone under simulated flight conditions. All experiments were carried out in an altitude chamber held at 6,000 feet MSL; relative humidity was kept at 10-12 percent and temperature at 68 - 74 deg F. Subjects were paid nonsmoking men and wome ...
  • Performance effects of alcohol intoxication and hangover at ground level and at simulated altitude
    Performance effects of alcohol intoxication and hangover at ground level and at simulated altitude.
    Collins, William E.
    1979-10-01 | PDF
    Eight private pilots (four men, four women) were trained to perform on a two-dimensional tracking task (joystick control of a localizer/glideslope instrument) and a respond as quickly as possible to the onset of a red pinlight, appended to the tracking instrument, by depressing a button on the joystick. Tracking and reaction time scores were obtain ...
  • Gasohol A Technical Memorandum
    Gasohol : A Technical Memorandum
    United States. Congress. Office of Technology Assessment
    1979-09-01 | PDF
    The Office of Technology Assessment (OTA) is preparing an assessment of energy from biological processes. In the course of this study OTA has carried out an extensive analysis of alcohol fuels from agricultural products. The purpose of this memorandum is to illuminate the technical and non-technical issues surrounding the development of gasohol. It ...
  • Transportation of the Elderly and Handicapped in Texas A Case Study
    Transportation of the Elderly and Handicapped in Texas: A Case Study
    Urbanik II, Thomas ;
    Soegaard, Jose A.
    1979-09-01 | PDF
    This report is a step towards improving elderly and handicapped transportation service in Texas. It is organized into four sections: mobility requirements, alternatives evaluation, case studies, and conclusions and recommendations. The section on mobility classifications recommends a four category classification scheme. The alternatives evaluation ...
  • Land Use Impact of Improving Collins Street in a Developed Area of Arlington Texas
    Land Use Impact of Improving Collins Street in a Developed Area of Arlington, Texas
    Cosby, Pamela J. ;
    Buffington, Jesse L.
    1979-09-01 | 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 repo ...
  • CostEffectiveness of Accessible Buses in Texas
    Cost-Effectiveness of Accessible Buses in Texas
    Urbanik II, Thomas ;
    Soegaard, Jose A.
    1979-09-01 | PDF
    Two alternatives to meet the transportation needs of the Transportation Handicapped in Texas were evaluated. The two alternatives are accessible fixed route buses and a separate specialized service. The accessible fixed-route bus alternative is the concept whereby existing fixed-route systems are made accessible by removing the barrier to entry thr ...
  • Costs of Public Transportation in Texas 19731977
    Costs of Public Transportation in Texas, 1973–1977
    Womack, Katie N. ;
    Burke, Dock
    1979-09-01 | PDF
    Public transit operations in Texas were analyzed to explore transit costs and changes from 1973 through 1977. Fifteen transit systems were examined to determine what cost components are causing cost escalation. The results showed that as transit systems decrease in size, their cost increases over time become greater, particularly their administrati ...
  • Safer construction and maintenance practices to minimize potential liability by counties from accidents
    Safer construction and maintenance practices to minimize potential liability by counties from accidents.
    Carstens, R. L. ;
    Dickinson, J. V.
    1979-09-01 | PDF
    Tort claims resulting from alleged highway defects have introducedan additional element in the planning, design, construction, and maintenanceof highways. A survey of county governments in Iowa was undertakenin order to quantify the magnitude and determine the nature ofthis problem. This survey included the use of mailed questionnairesand personal ...
  • Iowa interstate rest area stabilization ponds Part I Pond design Part II Feasibility of windpowered aeration
    Iowa interstate rest area stabilization ponds : Part I. Pond design, Part II: Feasibility of wind-powered aeration.
    Cleasby, John L. ;
    Dharmarajah, Herman
    1979-09-01 | PDF
    "This report is presented in two parts. Part I takes a new look at the design of rest area stabilization ponds after nearly 10 years'experience with some of the existing ponds and in the light of new design standards issued by Iowa DEQ. The Iowa DOT is embarking onimprovements to the ponds at some of the rest areas. These improvements may include i ...
  • Post Construction Evaluation of SandAsphaltSulphur Test Section Kenedy County Texas Interim Report No6
    Post Construction Evaluation of Sand-Asphalt-Sulphur Test Section, Kenedy County, Texas [Interim Report No.6]
    Gallaway, B. M. ;
    Newcomb, D. E.
    1979-09-01 | PDF
    Upon completion of the test sections, cores were obtained by District 21 personnel, and a series of tests were run (2). Data were processed and a report was prepared. This testing period was designated as initial (I) At six-month intervals following construction, TTI personnel took cores and performed a series of tests on these cores. During the sa ...
  • Evaluation of the flood risk factor in the design of box culverts volume 1 theoretical development
    Evaluation of the flood risk factor in the design of box culverts, volume 1 : theoretical development.
    Young, G. Kenneth ;
    Taylor, R. S.
    1979-09-01 | PDF
    "The work presented in this report represents a preliminary effort to integrate economic factors with the physics of highway drainage. Conventional culvert design rests on the selection of a flood peak flow having a particular return period; for example, the flood flow expected to occur once in a hundred-year period. A culvert is designed to pass t ...
  • Toward the development of a new selection battery for air traffic control specialists
    Toward the development of a new selection battery for air traffic control specialists.
    Boone, James O.
    1979-09-01 | PDF
    In an effort to update and refine the selection battery for air traffic controllers, five experimental tests measuring aptitudes and skills considered important in air traffic work were administered to newly selected Air Traffic Control Specialist (ATCS) trainees on their first day of training at the FAA Academy in Oklahoma City. The testing covere ...
  • Preliminary Material on Process Control Computer Software Functions
    Preliminary Material on Process Control Computer Software Functions
    Tuan, Paul L
    1979-08-21 | PDF
    The functions of Process Control Computers (PCC) in a hump yard may be categorized by two points of view: (1) From geographical area of the yard, or (2) from the nature of the function. Geographically the PCC function may be divided into several areas, and similarly there are several listed functions. In this informal note, the material will be org ...
  • Track Geometry Hump End of Classification Yard
    Track Geometry: Hump End of Classification Yard
    Sakasita, Masami
    1979-08-08 | PDF
    The purpose of this informal note is to document the types of track geometry at the hump end of the railway classification yards. The first part covers the track arrangements between the hump crest and the group retarders, and the second part covers the track arrangements between the group retarders and the tangent point.
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