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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 30001 - 30020 of 35440 results
  • Transportation System Performance Changes 19801990 Based on the Decennial Censuses
    Transportation System Performance Changes, 1980–1990: Based on the Decennial Censuses
    Williams, Tom A. ;
    Shunk, Gordon A.
    1994-08-01 | PDF
    Effective trip speeds were calculated from reported mean travel times from the 1980 Urban Transportation Planning Package and the 1990 Census Transportation Planning Package special census tabulations for six urban areas: Houston, Dallas-Fort Worth, Philadelphia, Boston, San Francisco, and Atlanta. Comparison methodology is presented in a detailed ...
  • Field data acquisition technologies for Iowa transportation agencies
    Field data acquisition technologies for Iowa transportation agencies.
    Jaselskis, E. J.
    1994-08-01 | PDF
    This report describes the results of the research project investigating the use ofadvanced field data acquisition technologies for lowa transponation agencies. Theobjectives of the research project were to (1) research and evaluate current dataacquisition technologies for field data collection, manipulation, and reporting; (2)identify the current f ...
  • Evaluation of bridge replacement alternatives for the county bridge system
    Evaluation of bridge replacement alternatives for the county bridge system.
    Wipf, T. J. ;
    Klaiber, F. W.
    1994-08-01 | PDF
    Recent reports have indicated that 23.5 percent of the nation's highway bridges arestructurally deficient and 17.7 percent are functionally obsolete. A significant number of these bridgesare on the Iowa county road system. The objective of the investigation described in this report wasto identify, review and evaluate replacement bridges currently b ...
  • Latex and microsilica modified concrete bridge deck overlays in Oregon interim report
    Latex and microsilica modified concrete bridge deck overlays in Oregon : interim report.
    Lundy, James R. ;
    Sujjavanich, Suvimol
    1994-08-01 | PDF
    This interim report presented information collected from 24 bridge deck overlays constructed in Oregon between 1989 and 1993. Decks were placed on a variety of existing structures using hydroblasting, milling and diamond grinding surface preparation. All decks were latex or microsilica modified concrete.Some decks experienced premature cracking and ...
  • Design and Flight Evaluation of an Integrated Navigation and NearTerrain Helicopter Guidance System for Nighttime and Adverse Weather Operations
    Design and Flight Evaluation of an Integrated Navigation and Near-Terrain Helicopter Guidance System for Nighttime and Adverse Weather Operations
    Swenson, Harry N. ;
    Zelenka, Richard E.
    1994-08-01 | PDF
    NASA and the U.S. Army have designed, developed, and flight evaluated a Computer Aiding for Low-Altitude Helicopter Flight (CALAHF) guidance system. This system provides guidance to the pilot for near-terrain covert helicopter operations. It automates the processing of precision navigation information, helicopter mission requirements, and terrain f ...
  • Evaluation of devices to improve shoulder belt fit
    Evaluation of devices to improve shoulder belt fit.
    Sullivan, Lisa K. ;
    Chambers, Fletcher K.
    1994-08-01 | PDF
    Dynamic HYGE sled tests were conducted to evaluate devices which are designed to reposition theshoulder belt to provide for improved fit or comfort. Three different devices, representative of thosebeing marketed, were tested using the 3 and 6 year old and the 5th percentile female dummies. TheFMVSS No. 213, "Child Restraint Systems", test seat and ...
  • Unreported Medications Used in Incapacitating Medical Conditions Found in Fatal Civil Aviation Accidents
    Unreported Medications Used in Incapacitating Medical Conditions Found in Fatal Civil Aviation Accidents
    Canfield, Dennis V. ;
    Flemig, Jo
    1994-08-01 | PDF
    One of the major concerns in aviation medicine is sudden incapacitation of the pilot resulting in a fatal accident. The Office of Aviation Medicine (OAM) for the Federal Aviation Administration (FAA) is charged with the medical certification of pilots. All pilots are required by OAM to receive a medical examination by a qualified Aviation Medical E ...
  • The Applicability of Commercial Glare Test Devices in the Aeromedical Certification of Pilot Applicants
    The Applicability of Commercial Glare Test Devices in the Aeromedical Certification of Pilot Applicants
    Nakagawara, Van B. ;
    Montgomery, Ronald W.
    1994-08-01 | PDF
    In his FY 92/93 Annual Program Guidance and Current Policy Statement, the Federal Air Surgeon requested continued investigation of new testing modalities, such as glare vision testing, as to their relevance to medical certification. Glare sensitivity is a normal age related physiological change depriving the human visual system of vital information ...
  • Elimination of Quinine in Two Subjects after Ingestion of Tonic Water An Exploratory Study
    Elimination of Quinine in Two Subjects after Ingestion of Tonic Water: An Exploratory Study
    White, Vicky L. ;
    Canfield, Dennis V.
    1994-08-01 | PDF
    Biological specimens from 8 fatal aviation accidents out of 775 fatal aviation accidents analyzed in 1991 and 1992 were found to contain quinine. In one case, the investigators sought to identify the source of quinine found in the pilot. It was suggested that the quinine might have come from the consumption of tonic water. Since no recent use of qu ...
  • Blink rate as a measure of fatigue a review
    Blink rate as a measure of fatigue : a review.
    Stern, J.A. ;
    Boyer, D.
    1994-08-01 | PDF
    Fatigue is one of many factors that can impact the ability of pilots and air traffic controllers (ATCs) to maintain their performance across time. This review of the literature is an outgrowth of a study concerning the relationship between several gaze measures and time on task (TOT) performance of subjects on an ATC monitoring task. Blink rate is ...
  • Spring Restrictions Limits and Timing
    Spring Restrictions: Limits and Timing
    Wilson, Thomas
    1994-07-31 | PDF
    The South Dakota Department of Transportation developed project SD93-03 primarily to study the effectiveness of various techniques for determining appropriate spring restriction periods. A literature review, interviews with State agencies, interviews with users, and a series of field tests were performed during this project. The results show that t ...
  • The IVHS National Architecture Development Phase II
    The IVHS National Architecture Development: Phase II
    United States. Federal Highway Administration
    1994-07-20 | PDF
    This paper describes the major features and timing of the second phase of the national IVHS system development activity. Phase I of the architecture development involved four contractor teams, each of which developed competing initial architectures and preliminary evaluations. Phase II will involve one or more of these Phase I teams, whose efforts ...
  • 1992 Michigan traffic crash facts
    Michigan. Office of Highway Safety Planning  ...
    1994-07-19 | PDF
    The 1992 traffic fatality count was 1,300, down 8.8 percent from the 1991 figure of1,425. Compared with 1991, injuries were down 12.6 percent and total crasheswere down 5.5 percent. These figures translated into a death rate of 1.5 per 100million miles of travel, down 11.8 percent from the death rate of 1.7 reported in1991.Exposure factors in 1992 ...
    Dataset
  • South Dakota City Street Needs Assessment
    South Dakota City Street Needs Assessment
    Beckemeyer, Curt A. ;
    Peshkin, David G.
    1994-07-18 | PDF
    This report identifies the current and forecasted 20-year funding needs necessary to maintain the State of South Dakota's existing Federal-aid non-state city streets. This study was sponsored by the South Dakota Department of Transportation (SDDOT) as a result of the requirements of the intermodal Surface Transportation Efficiency Act (]STEA) passe ...
  • Process Conditions for the Total Oxidation of Hydrocarbons
    Process Conditions for the Total Oxidation of Hydrocarbons
    Watts, Richard J. ;
    Stanton, Patrick
    1994-07-01 | PDF
    The use of Fenton's reagent for completely oxidizing hexadecane and benzo[a]pyrene (BAP) to their thermodynamic endpoints, carbon dioxide and water, was investigated. Confirmation of oxidation was determined by using 14C-labeled compounds and recovering the evolved 14co2. Experimental design procedures incorporating factorial mattices were used to ...
  • Environmental Considerations in the Use of Salvaged Asphalt Pavement
    Environmental Considerations in the Use of Salvaged Asphalt Pavement
    Pribanic, Joan A.
    1994-07-01 | PDF
    The purpose of this sub-study (part of a larger research project on salvaged asphalt) was to investigate the potential for soil and/or groundwater and/or surface water contamination arising from the stockpiling, use, or disposal of salvaged asphalt pavement in Montana.
  • Development of Emission Estimates for the Conformity Analysis of the Victoria FY94 TIP and 2015 Metropolitan Plan
    Development of Emission Estimates for the Conformity Analysis of the Victoria FY-94 TIP and 2015 Metropolitan Plan
    Benson, Jimmie D. ;
    Dresser, George B.
    1994-07-01 | PDF
    This report documents the mobile source emission estimation methodology used for the conformity analysis of the Transportation Improvement Program (TIP) and the metropolitan plan for Victoria County. Included in the report is a brief overview of the emission estimation methodology and the 24-hour traffic assignments used in the analyses; the method ...
  • Glossary of transit terminology
    American Public Transit Association
    1994-07-01 | PDF
    This latest edition of APTA's Glossary of Transit Terminology updates the previous glossary that was produced in 1984, and provides significant cross-references. This edition also gives definitions for more recent transit-related terms like National Transportation System (NTS) and Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA). Fi ...
    Dataset
  • Development of Emission Estimates for the Conformity Analysis of the JOHRTS FY94 TIP Interim Report 1994
    Development of Emission Estimates for the Conformity Analysis of the JOHRTS FY-94 TIP [Interim Report, 1994]
    Benson, Jimmie D. ;
    Dresser, George B.
    1994-07-01 | PDF
    This report documents the mobile source emissions estimation methodology used for the conformity analysis of the Transportation Improvement program (TIP) and the Long Range Plan (LRP) for (Victoria County/JOHRTS/El Paso). Included in the report is a brief overview of the emission estimation methodology and the 24-hour traffic assignments used in th ...
  • Development of Emission Estimates for the Conformity Analysis of the El Paso Fy94 TIP
    Development of Emission Estimates for the Conformity Analysis of the El Paso Fy-94 TIP
    Benson, Jimmie D. ;
    Dresser, George B.
    1994-07-01 | PDF
    This report documents the mobile source emissions estimation methodology used for the conformity analysis of the Transportation Improvement Program (TIP) and the metropolitan transportation plan for El Paso. Included in the report is a brief overview of the emission estimation methodology and the 24-hour traffic assignments used in the analyses; th ...
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