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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 30101 - 30120 of 35440 results
  • CATS 1990 Household Travel Survey Questionnaire Materials
    CATS 1990 Household Travel Survey : Questionnaire Materials
    State of Illinois
    1994-04-01 | PDF
    This document contains an example of the materials mailed to households selected to participate in the Chicago Area Transportation Study 1990 Household Travel Survey.
  • Trash to Treasure NRELs HighSolids Digester Converts Wastes to Biogas and Compost
    Trash to Treasure: NREL's High-Solids Digester Converts Wastes to Biogas and Compost
    National Renewable Energy Laboratory (NREL) (U.S.)
    1994-04-01 | PDF
    This article describes a pilot high-solids digester (HSD) plant for use in American Samoa. The American Samoa is highly dependent on imported fuel. At the same time, the local tuna canneries produce large amounts of waste materials. The HSD program will turn the fisheries waste into a biogas fuel and a compost that can be used to enrich the local v ...
  • Research notes recycled plastics in highway construction and maintenance
    Research notes : recycled plastics in highway construction and maintenance.
    Oregon. Department of Transportation. Materials and Research Section
    1994-04-01 | PDF
    The Oregon public and Oregon Legislature have great interests in the use of recycled waste products. The costs of waste disposal continue to increase as existing landfills approach maximum capacity forcing development of additional landfills. In response to these concerns, the Legislature passed Oregon Senate Bill (SB) 66, in part, directing the Or ...
  • Armorform articulating block mat erosion control system Salmon Creek Bridge Oakridge Oregon research notes
    Armorform articulating block mat erosion control system, Salmon Creek Bridge, Oakridge, Oregon : research notes.
    1994-04-01 | PDF
    No Description
  • Toxicity of Carbon Monoxide Hydrogen Cyanide Gas Mixtures Exposure Concentration Time to Incapacitation Carboxyhemoglobin and Blood Cyanide Parameters
    Toxicity of Carbon Monoxide Hydrogen Cyanide Gas Mixtures: Exposure Concentration, Time to Incapacitation, Carboxyhemoglobin and Blood Cyanide Parameters
    Sanders, Donald C. ;
    Chaturvedi, Arvind K.
    1994-04-01 | PDF
    During aircraft interior fires, carbon monoxide (CO) and hydrogen cyanide (HCN) are produced in sufficient amounts to cause incapacitation and death. Time-to-incapacitation (ti) is a practical parameter for estimating escape time in fire environments. Exposures to CO-HCN mixtures have demonstrated that these gases have additive effects (producing s ...
  • Validity of the Air Traffic Control Specialist Nonradar Screen as a Predictor of Performance in Radar Based ATC Training
    Validity of the Air Traffic Control Specialist Nonradar Screen as a Predictor of Performance in Radar Based ATC Training
    Broach, Dana ;
    Manning, Carol A.
    1994-04-01 | PDF
    Between January 1986 and March 1992, the Federal Aviation Administration's 42-day Nonradar Screen was used to identify Air Traffic Control Specialist (ATCS) candidates with the highest potential to succeed in the rigorous ATCS field training program. The central question addressed in this study was whether or not the Nonradar Screen was a valid emp ...
  • Scanning and Monitoring Performance Effects of the Reinforcement Values of the Events Being Monitored
    Scanning and Monitoring Performance: Effects of the Reinforcement Values of the Events Being Monitored
    Rasmussen, P.G. ;
    Revzin, A.M.
    1994-04-01 | PDF
    We formulated a hypothesis suggesting that operators could make scanning and monitoring errors if they tended to concentrate on a "high value" display sub area while ignoring "low value" problems elsewhere on the display. Such "data" would have application to Air Traffic Control Specialist (ATCS) jobs. We tested the hypothesis in an experiment rewa ...
  • Evaluation of Undersealing of Undoweled Plain Jointed PCC Pavements in South Dakota
    Evaluation of Undersealing of Undoweled Plain Jointed PCC Pavements in South Dakota
    Taha, Ramzi ;
    Selim, Ali A.
    1994-03-31 | PDF
    Pumping and faulting of undoweled Portland cement concrete (PCC) pavements has become a serious problem in South Dakota. Repair techniques to correct these distresses include diamond grinding, full/partial depth repairs, load transfer restoration, installation of edge drains, crack sealing, joint resealing, and slab stabilization (undersealing). Un ...
  • Analysis of the Impact Upon State and Local Roads of Transporting Garbage to Centralized Solid Waste Disposal Sites
    Analysis of the Impact Upon State and Local Roads of Transporting Garbage to Centralized Solid Waste Disposal Sites
    Rutherford, Mary S. ;
    Buss, Kenneth
    1994-03-25 | PDF
    This report describes methods to evaluate incremental damage on unsurfaced roads and flexible pavement roads due to additional solid waste vehicle hauls. Load equivalencies used to estimate damage are presented for nine solid waste vehicle types. Incremental damage due to solid waste vehicles is evaluated by estimating damage due to existing traffi ...
  • Aviation Safety FAA and the State Department Can Better Manage Foreign Enforcement Cases
    Aviation Safety: FAA and the State Department Can Better Manage Foreign Enforcement Cases
    United States. Government Accountability Office
    1994-03-17 | PDF
    To create a framework for international cooperation in developing civil aviation, representatives of the United States and 51 additional countries signed the 1944 Convention on International Civil Aviation, commonly called the "Chicago Convention," and created the International Civil Aviation Organization (ICAO). As of April 1993, ICAO had 178 memb ...
  • Guidance Regarding Voluntary Compliance With the International Management Code for the Safe Operation of Ships and for Pollution Prevention
    Guidance Regarding Voluntary Compliance With the International Management Code for the Safe Operation of Ships and for Pollution Prevention
    United States. Coast Guard
    1994-03-15 | PDF
    The purpose of this Circular is to advise owners and operators of U.S. flag merchant vessels regarding voluntary compliance with the International Management Code for the Safe Operation of Ships and for Pollution Prevention.
  • Programs For Training Of Aircraft Rescue And Firefighting Personnel
    Programs For Training Of Aircraft Rescue And Firefighting Personnel
    United States. Department of Transportation. Federal Aviation Administration
    1994-03-09 | PDF
    This advisory circular (AC) provides information on courses and reference materials for training of Aircraft Rescue and Firefighting (ARFF) personnel.
  • Airport Competition Essential Air Service Slots at OHare International Airport
    Airport Competition: Essential Air Service Slots at O'Hare International Airport
    United States. Government Accountability Office
    1994-03-04 | PDF
    This General Accounting Office fact sheet provides information on the availability of air travel between small airports in the Midwest and Chicago's O'Hare International Airport. Some small communities in the Midwest contend that service to O'Hare is vital to attracting new industry and maintaining healthy local economies. Although the Essential Ai ...
  • Effects of Corrosion and Fatigue on the LoadCarrying Capacity of Structural and Reinforcing Steel
    Effects of Corrosion and Fatigue on the Load-Carrying Capacity of Structural and Reinforcing Steel
    Hahin, Christopher
    1994-03-01 | PDF
    Pitting and crevice corrosion have profound effects on the fatigue life of structural and reinforcing steels used in bridge construction. Stress concentration factors were measured on actual corroded plates with strain gage instrumentation. Using corrosion rates and pitting ratios for immersion, intermittent immersion and various atmospheric enviro ...
  • Transportation Infrastructure Benefits of Traffic Control Signal Systems Are Not Being Fully Realized Report to the Chairman Committee on Energy and Commerce House of Representatives
    Transportation Infrastructure: Benefits of Traffic Control Signal Systems Are Not Being Fully Realized: Report to the Chairman, Committee on Energy and Commerce, House of Representatives
    United States. Government Accounting Office
    1994-03-01 | PDF
    Traffic control signal systems are among the many tools for managing traffic congestion in urban areas. Systems that are appropriately designed and properly operated and maintained provide safety improvements, reduce travel times and vehicle operating costs, and lower fuel consumption and vehicle emissions. They will also form one of the essential ...
  • Snow Plow Cutting Edge Cost Effectiveness
    Snow Plow Cutting Edge Cost Effectiveness
    Becker, Jonathan
    1994-03-01 | PDF
    This report describes research performed by the South Dakota Department of Transportation to determine cost-effectiveness of snowplow cutting edges. Five vehicles at maintenance units around the state were instrument with mileage counters to record the distance plowed by each set of cutting edges. Two of these vehicles were in Pierre, one in Murdo, ...
  • Influence of Coarse Aggregate Shape and Surface Texture on Rutting of Hot Mix Asphalt Concrete
    Influence of Coarse Aggregate Shape and Surface Texture on Rutting of Hot Mix Asphalt Concrete
    Yeggoni, Mohan ;
    Button, Joe W.
    1994-03-01 | PDF
    The objectives of this study were to: 1) evaluate the influence of coarse aggregate shape and surface texture on deformation characteristics of asphalt concrete, 2) characterize aggregate elongation, shape, and texture using fractal dimensional analysis, and 3) study the correlation between the physical properties of coarse aggregates and the perma ...
  • Texas Aeronautical Facilities Plan Development Needs Assessment
    Texas Aeronautical Facilities Plan Development Needs Assessment
    Lindquist, Eric ;
    Dresser, George B.
    1994-03-01 | PDF
    This report reviews the projected airport development needs as represented in the Texas Aeronautical Facilities Plan, produced by the Aviation Division, Texas Department of Transportation. The 5-year development needs for state general aviation airports are shown to be significantly greater than existing and expected state funding capabilities. An ...
  • Implantation of Louisiana Electric Cone Penetrometer System LECOPS for design of transportation facilities executive summary
    Implantation of Louisiana Electric Cone Penetrometer System (LECOPS) for design of transportation facilities : executive summary.
    Tumay, M. T.
    1994-03-01 | PDF
    For several decades, the Louisiana Department of Transportation and Development (LDOTD) has been able to rely on an ample supply of labor with appropriate equipment to provide soil design data. Budget cutbacks have forced reduction in personnel and equipment to the point that the Department forces are no longer able to keep up with the demand for t ...
  • The National Highway Traffic Safety Administration FY 1994 Performance Plan
    The National Highway Traffic Safety Administration FY 1994 Performance Plan
    United States. Department of Transportation. National Highway Traffic Safety Administration
    1994-03-01 | PDF
    The FY 1994 plan covers the entire Fiscal Year and uses the NHTSA program structure as it appears in the Budget of the U.S. Government: Fiscal Year 1994. The agency is in the process of developing performance-based program groupings for future year plans. OMB has requested that the FY 1994 plan indicate any potential changes in performance measurem ...
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