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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 34301 - 34320 of 36710 results
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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.
  • Roughness at the PavementBridge Interface
    Roughness at the Pavement-Bridge Interface
    Hu, Yi-Chin ;
    Wu, Tsu-Long
    1979-08-01 | PDF
    Road surface roughness in the proximity of the pavement-bridge interface may lower riding quality and induce excessive dynamic wheel loads on highway structures. Twenty-one bridge sites in four Texas State Department of Highways and Public Transportation Districts, Lubbock, Houston, Austin, and San Antonio, are selected for study. The Surface Dynam ...
  • Texturing of concrete pavements final report
    Texturing of concrete pavements : final report.
    Law, Sheldon M. ;
    Rasoulian, Masood
    1979-08-01 | PDF
    During the month of June, 1973, the plastic concrete surface of a section of Interstate 10 in the Baton Rouge area was textured using several different texturing techniques, such as burlap drag, brooms and metal tines. The purpose of this experimental research project was to learn which would perform the best in regard to skid resistance, nonhydrop ...
  • Objectives and State of the Art of Urban Freeway Guide Signing Systems
    Objectives and State of the Art of Urban Freeway Guide Signing Systems
    McNees, Roger W. ;
    Messer, Carroll J.
    1979-08-01 | PDF
    This report outlines the objectives of the 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, Federal Highway Administration. An extensive state-of-the-art is included in this report.
  • Energy Study of Railroad Freight Transportation Volume 4 Efficiency Improvements and Industry Future
    Energy Study of Railroad Freight Transportation— Volume 4: Efficiency Improvements and Industry Future
    Stanford Research Institute
    1979-08-01 | PDF
    The Energy Research and Development Administration (ERDA)*, recognizing the need for an assessment of energy usage by railroad freight and passenger services and by rail transit systems, has sponsored the Energy Study of Rail Transportation as part of a comprehensive energy conservation program.
  • Detection of Voids Underneath Continuously Reinforced Concrete Pavements
    Detection of Voids Underneath Continuously Reinforced Concrete Pavements
    Birkhoff, John W. ;
    McCullough, B. Frank
    1979-08-01 | PDF
    The basic assumption in pavement design is that there is full support through out the length of the pavement. When a void developes, this is not true. This report investigates three methods of detecting voids underneath continuously reinforced concrete pavements. The methods; deflection, pumping, and vibration, are evaluated to find which has the h ...
  • Forecasts of Passenger and Freight Transportation Expenditures in Texas August 1979
    Forecasts of Passenger and Freight Transportation Expenditures in Texas [August, 1979]
    Texas Transportation Institute. Texas A&M University
    1979-08-01 | PDF
    This report presents forecasts of Texas' transportation "bill" for the years 1976-2000. These forecasts represent expenditures for transportation by the private sector in Texas. They were derived using econometric models that utilized estimates of previous transportation bills and data on Gross Texas Product, real gasoline prices, Texas Interstate ...
  • Limiting Criteria for the Design of CRCP
    Limiting Criteria for the Design of CRCP
    McCullough, B. Frank ;
    Ma, J. C. M.
    1979-08-01 | PDF
    The primary factors to consider in the thickness and reinforcement design for continuously reinforced concrete pavements are the structural response variables; crack spacing, crack width, and maximum steel stress. They plant an important role in the outcome of the pavement performance and can be related to the major distresses common to CRC pavemen ...
  • Railroad safety USCanadian comparison
    Railroad safety : U.S.-Canadian comparison
    United States. Congress. Office of Technology Assessment
    1979-08-01 | PDF
    In June 1978, Congress requested the Office of Technology Assessment (OTA) toconduct "a detailed comparison between conditions prevailing in railway safetyin the United States and a review of safety operations in Canada. " Respondingto this request, this OTA report identifies the similarities and differencesbetween the U.S. and Canadian railroad sy ...
  • Identification of Approaches for the Control of Health Environmental and Safety Hazards Associated With Air Bag Use and Disposal
    Identification of Approaches for the Control of Health; Environmental; and Safety Hazards Associated With Air Bag Use and Disposal
    Little, Arthur D.
    1979-08-01 | PDF
    The program was undertaken to examine previous work conducted by various parties in order to assess the magnitude of any potential risks resulting from the use of air bag restraint systems. Specific potential hazards associated with the safe handling and disposal of inflator modules were identified and individual amelioration techniques were examin ...
  • Energy Study of Railroad Freight Transportation Volume 1 Executive Summary
    Energy Study of Railroad Freight Transportation — Volume 1: Executive Summary
    Stanford Research Institute
    1979-08-01 | PDF
    The Energy Research and Development Administration (ERDA), recognizing the need for an assessment of energy usage by railroad freight and passenger services and by rail transit systems, has sponsored the Energy Study of Rail Transportation as part of a comprehensive energy conservation program.
  • Energy Study of Railroad Freight Transportation Volume 3 Regulation and Tariff
    Energy Study of Railroad Freight Transportation— Volume 3: Regulation and Tariff
    Stanford Research Institute
    1979-08-01 | PDF
    The Energy Research and Development Administration (ERDA)*, recognizing the need for an assessment of energy usage by railroad freight and passenger services and by rail transit systems, has sponsored the Energy Study of Rail Transportation as part of a comprehensive energy conservation program.
  • Energy Study of Railroad Freight Transportation Volume 2 Industry Description
    Energy Study of Railroad Freight Transportation— Volume 2: Industry Description
    Stanford Research Institute
    1979-08-01 | PDF
    The Energy Research and Development Administration (ERDA)*, recognizing the need for an assessment of energy usage by railroad freight and passenger services and by rail transit systems, has sponsored the Energy Study of Rail Transportation as part of a comprehensive energy conservation program.
  • Optimum Length of TwoLane TwoWay NoPassing Traffic Operation in ConstructionMaintenance Zones on Rural FourLane Divided Highways
    Optimum Length of Two-Lane, Two-Way, No-Passing Traffic Operation in Construction/Maintenance Zones on Rural Four-Lane Divided Highways
    McCoy, Patrick T. ;
    Pang, Leslie M.
    1979-08-01 | PDF
    The objective of the study was to determine the optimum length of two-lane, two-way, no-passing traffic operation in construction/maintenance zones on rural four-lane divided highways. An equation was developed for the sum of road-user and traffic-control costs as a function of this length. The methods of calculus were then used to derive the optim ...
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