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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 33961 - 33980 of 36710 results
  • Methodology in the assessment of stress among air traffic control specialists ATCS normative adult data for the StateTrait Anxiety Inventory from nonATCS populations
    Methodology in the assessment of stress among air traffic control specialists (ATCS) : normative adult data for the State-Trait Anxiety Inventory from non-ATCS populations.
    Hutto, Gary L. ;
    Smith, Roger C.
    1981-03-01 | PDF
    STAI scores of adult men and women within the age range of 25 through 59 years were generally equal to or slightly less than scores of the college undergraduate normative group. This suggests that the previous use of undergraduate norms to evaluate A-Trait and A-State scores of ATCSs did not underestimate the levels of work-related stress associate ...
  • Travel Information Data Acquisition System Users Manual
    Travel Information Data Acquisition System Users Manual
    Blumentritt, Charles W.
    1981-03-01 | PDF
    The B-1 TRIDAQS (Travel Information Data Acquisition System) is a unit for recording travel time information in a floating vehicle. The unit is highly portable with easy transfer from vehicle-to-vehicle, and virtually independent of any special equipment installations that would limit the use of the unit to a specific vehicle. The unit is easily op ...
  • An Evaluation of the 1979 Law VCS Sec 73a Which Requires Frontage Road Traffic to Yield at Freeway Ramps
    An Evaluation of the 1979 Law (V.C.S., Sec 73.a.) Which Requires Frontage Road Traffic to Yield at Freeway Ramps
    Stockton, William R. ;
    Richards, Stephen H.
    1981-03-01 | PDF
    This report summarizes the findings of an evaluation of the 1979 Texas law (V.C.S., Sec. 73.A.) which requires frontage road traffic to yield right-of-way to freeway ramp traffic. The law was enacted to encourage statewide uniformity in right-of-way assignment at frontage road-ramp intersections. It affected traffic control at approximately 2,700 r ...
  • Seasonal Behavior of Marketing Patterns for Grain From North Dakota
    Seasonal Behavior of Marketing Patterns for Grain From North Dakota
    Wilson, William G ;
    Hvinden, Steven C
    1981-03-01 | PDF
    This study describes seasonal patterns of grain marketing in North Dakota. Causal relationships are being evaluated and will be reported elsewhere. A secondary objective is to evaluate changes in the seasonal pattern of marketing since 1967.
  • Analyses Experimental Studies and Evaluations of Control Measures for Air Flow and Air Quality On and Near Highways Volume II User Guidelines and Applications Notes for Estimating Air Quality for Alternative Roadway Configurations
    Analyses, Experimental Studies, and Evaluations of Control Measures for Air Flow and Air Quality On and Near Highways: Volume II -– User Guidelines and Applications Notes for Estimating Air Quality for Alternative Roadway Configurations
    Dabberdt, Walter F. ;
    Shelar, Eugene
    1981-03-01 | PDF
    A manual user-oriented methodology has been developed for estimating air quality conditions at each of a wide variety of simple and complex roadway configurations. Guidelines are presented in four parts for the evaluation of air quality conditions at alternative roadway configurations. The first part presents a background discussion of principles o ...
  • Impacts of Seasonal Rail Rates on Grain Flows and Storage in North Dakota
    Impacts of Seasonal Rail Rates on Grain Flows and Storage in North Dakota
    Wilson, William W. ;
    Hvinden, Steven C
    1981-03-01 | PDF
    Reported in this bulletin is an analysis of the influence of seasonal rail rates on the movement of wheat, transport modes, and on location of storage facilities. Specific objectives were to describe the historical conditions associated with seasonal rail grain rates in North Dakota; to check for trends and seasonality patterns in grain flows from ...
  • Revenues and Subsidies of Public Transportation in Texas 1973 1977
    Revenues and Subsidies of Public Transportation in Texas, 1973 – 1977
    Womack, Katie N. ;
    Burke, Dock
    1981-03-01 | PDF
    The data and results presented in this report are complementary to those reported earlier in m Technical Report 1060-1, Costs of Public Transportation in Texas, 1973-1977. The objective of the study was to analyze the types and sources of revenues available to transit systems in Texas; trends in those revenues; and the amounts and sources of financ ...
  • The effects of elevated highway construction on water quality in Louisiana wetlands final report
    The effects of elevated highway construction on water quality in Louisiana wetlands : final report.
    Cramer, George H. ;
    Hopkins, William C.
    1981-02-02 | PDF
    This study is to determined by physical, chemical, and biological means, the effects of bridged highway construction techniques on water quality in wetlands. Water quality was monitored before, during, and after construction. The data shows the increase in pollution that occurred during construction. The areas where construction has been completed ...
  • Hot recycling of asphaltic concrete pavement IR1538121 Wildcat to Pine Creek
    Hot recycling of asphaltic concrete pavement : IR-15-3(8)121, Wildcat to Pine Creek
    Betenson, Wade B.
    1981-02-01 | PDF
    There are various methods of pavement material recycling. This report is devoted to hot-mix plant recycling considerations and procedures. The several phases of the hot-mix recycling process are discussed separately, including removal and size reduction of existing asphaltic concrete pavement material. analyzing pavement composition, determining th ...
  • ParkandPool Facilities Survey Results and Planning Data
    Park-and-Pool Facilities Survey Results and Planning Data
    Bullard, Diane L. ;
    Christiansen, Dennis L.
    1981-02-01 | PDF
    This report presents the results of a Park-and-Pool survey undertaken at selected locations around the San Antonio and Houston, Texas, metropolitan areas. From the survey questionnaires, considerable information was obtained concerning the types of people attracted by Park-and-Pool and what factors prompted them to begin carpooling. Data were also ...
  • Rehabilitation and Maintenance System State Optimal Fund Allocation Program I RAMSSOFA1
    Rehabilitation and Maintenance System: State Optimal Fund Allocation, Program I (RAMS-SOFA-1)
    Phillips, Don T. ;
    Shanmugham, Chiyyarath V.
    1981-02-01 | PDF
    The State Optimal Fund Allocation problem is presented. The problem is modeled as a Nonlinear Knapsack Problem, and the solution methodology uses the concepts of dynamic programming techniques. An example problem with five Highway Districts is formulated and solved using a computer program developed for that purpose. There are 11, 12, 17, 14, and 1 ...
  • Bridge Rail to Restrain and Redirect Buses
    Bridge Rail to Restrain and Redirect Buses
    Hirsch, T. J.
    1981-02-01 | PDF
    A standard Texas traffic rail Type T202. 27 in. high was strengthened and modified so that it could restrain and redirect school and intercity buses under 60 mph (96.6 km/hr.) 150 angle impacts. A semi-elliptical extruded aluminum rail was mounted on cast aluminum posts to increase the rail height to 42 in. (107 cm). Three crash tests were conducte ...
  • Constituents of Highway Runoff Volume IV Characteristics of Highway Runoff from Operating Highways Research Report
    Constituents of Highway Runoff: Volume IV, Characteristics of Highway Runoff from Operating Highways. Research Report
    Gupta, M. K. ;
    Agnew, R.W.
    1981-02-01 | PDF
    This report relates to the identification and quantification of the constituents of highway runoff. It includes the details of monitoring site selection, field monitoring procedures, analysis of accumulated data, conclusions, significant findings and limitations. A total of 159 storm events were monitored at six sites between Spring of 1976 to Sept ...
  • Constituents of Highway Runoff Volume III Predictive Procedure for Determining Pollution Characteristics in Highway Runoff
    Constituents of Highway Runoff: Volume III, Predictive Procedure for Determining Pollution Characteristics in Highway Runoff
    Gupta, M. K. ;
    Agnew, R.W.
    1981-02-01 | PDF
    This report documents the development and application of a simple predictive procedure (model) for determining the runoff quantity and quality from highway systems based on the data gathered from 5 monitoring sites around the country. Equations for 3 highway site types were developed to predict runoff volume and pollutant wash-off coefficients for ...
  • Cardiorespiratory assessment of 24hour crashdiet effects on altitude Gz and fatigue tolerances
    Cardiorespiratory assessment of 24-hour crash-diet effects on altitude, +Gz, and fatigue tolerances.
    Lategola, Michael T. ;
    Lyne, Peggy J.
    1981-02-01 | PDF
    Eleven male surrogates of general aviation pilots, 25-40 years old, were tested for altitude, +Gz, and fatigue tolerances with and without previous fasting for 24 h. Testing included 2 min of lower body negative pressure (LBNP) at -40 torr (equivalent to +2Gz) after 118 min at 3,810 m chamber altitude and, after returning to ground level pressure, ...
  • Emergency cabin lighting installations an analysis of ceiling vs lower cabinmounted lighting during evacuation trials
    Emergency cabin lighting installations : an analysis of ceiling- vs lower cabin-mounted lighting during evacuation trials.
    Chesterfield, Burton P. ;
    Rasmussen, Paul G.
    1981-02-01 | PDF
    Six series of human subject evacuation tests were conducted to compare the evacuation rates with two different emergency lighting systems in an aircraft cabin filled with nontoxic white smoke. Cabin emergency lighting and exit signs mounted near the ceiling were almost completely obscured by smoke, which layered most heavily in the upper one-half o ...
  • Maintaining granular surfaced roads
    Maintaining granular surfaced roads.
    Tritsch, Steven L.
    1981-02-01 | PDF
    Approximately 65% of Iowa's roads are surfaced with aggregates composed of crushed limestone and/or gravel. Rural Iowan's regard these roads as a very important part of their lives. Therefore, the slide-tape presentation, "Maintaining Granular Surfaced Roads" was developed to aid the motor grader operator to better understand the procedures require ...
  • Effect of different runway size on pilot performance during simulated night landing approaches
    Effect of different runway size on pilot performance during simulated night landing approaches.
    Mertens, Henry W. ;
    Lewis, Mark F.
    1981-02-01 | PDF
    In Experiment I, three pilots flew simulated approaches and landings in a fixed-base simulator with a computer-generated-image visual display. Practice approaches were flown with an 8,000-ft-long runway that was either 75, 150, or 300 ft wide; test approaches were to runways with widths of 75, 100, 150, 200, and 300 ft. In Experiment II, 40 pilots ...
  • Evaluating Urban Freeway Guide Signing Laboratory Studies
    Evaluating Urban Freeway Guide Signing: Laboratory Studies
    McNees, Roger W. ;
    Messer, Carroll J.
    1981-02-01 | PDF
    This report documents the research conducted during one phase of a research project conducted by the Texas Transportation Institute entitled, "Evaluating Urban Freeway Guide-Signing". The research was sponsored by the Texas Department of Highways and Public Transportation in cooperation with the U.S. Department of Transportation, Federal Highway Ad ...
  • The Exempt Motor Carrier North Dakotas Dilemma
    The Exempt Motor Carrier: North Dakota’s Dilemma
    Griffin, Gene C.
    1981-02-01 | PDF
    This paper gives a brief description of the formation of the exempt motor carrier industry and its relationship to railroads, as well as problems in that industry.
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