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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 34341 - 34360 of 36710 results
  • Interstimulus interval as it affects temporary threshold shift in serial presentations of loud tones
    Interstimulus interval as it affects temporary threshold shift in serial presentations of loud tones.
    Tobias, Jerry V.
    1979-06-01 | PDF
    Temporary threshold shifts were measured repeatedly during a session in order to determine effects of interstimulus interval (ISI) on the shift. The fatiguing sound was a 3-minute, 110-dB-SPL, 4,000-Hz tone. Immediately following the 3-minute stimulation, Bekesy-audiometric tracings were made for 3 minutes at 5,656 Hz. Then the subject sat quietly ...
  • An Assessment of the Adequacy of NHTSAs Motor Vehicle Safety Research Plan Findings of a Workshop
    An Assessment of the Adequacy of NHTSAs Motor Vehicle Safety Research Plan, Findings of a Workshop
    Segel, L. ;
    Weber, K. (Kathleen)
    1979-06-01 | PDF
    A workshop was held to evaluate the adequacy of the safety-related research and development activities planned in support of NHTSA's Five Year Plan for Motor Vehicle Safety and Fuel Economy Rulemaking. This document summarizes the deliberations and findings of that workshop.
  • Westbound Trim End Alternatives at Elkhart Yard
    Westbound Trim End Alternatives at Elkhart Yard
    Sakasita, Masami
    1979-05-24 | PDF
    This working note describes the three proposed alternative trim-end designs of Elkhart yard, which will be examined using the newly developed computer simulation model CONFLICT. It presents a pros and cons discussion of the three alternatives but does not present any quantitative results.
  • Aeromedical Evacuation Worldwide Aeromedical Evacuation
    Aeromedical Evacuation: Worldwide Aeromedical Evacuation
    United States. Army
    1979-05-10 | PDF
    This regulation establishes operational and administrative responsibilities and procedures for worldwide aeromedical evacuation. It implements STANAG 3204, SOLOG 83, SEASTAG 3204, and IADB (Inter-American Defense Board) Resolution 46 by incorporating standardized aeromedical evacuation terminology and procedures which under terms of the above cited ...
  • Truck Utilization of the I45N Contraflow Lane in Houstona Feasibility Study
    Truck Utilization of the I-45N Contraflow Lane in Houston–a Feasibility Study
    Holder, R. W. ;
    Christiansen, Dennis L.
    1979-05-01 | PDF
    This report was to document the gathering of truck movement data on the North Freeway (I-45N) in Houston, Texas, primarily to determine the potential for trucks to use the proposed North Freeway contraflow lane. However, the final result of the study was the compilation of detailed traffic flow data concerning all traffic using the North Freeway. T ...
  • Development of electrophysiological indices of neurological toxicity for organophosphate pesticides and depressant drugs
    Development of electrophysiological indices of neurological toxicity for organophosphate pesticides and depressant drugs.
    Revzin, A.M.
    1979-05-01 | PDF
    Accurate control of eye movements and rapid detection of unexpected events in the periphery of the visual field are critically important in the aviation environment. We have studied the effects of certain drugs and environmental pollutants on brain mechanisms controlling these visual reflexes, using single nerve cell recordings in animal model syst ...
  • Trilevel study of the causes of traffic accidents volume 2 special analyses
    Tri-level study of the causes of traffic accidents, volume 2 : special analyses.
    Treat, J.R. ;
    Tilmbas, N.S.
    1979-05-01 | PDF
    This final report is comprised of two volumes. Volume I provides causal result tabulations and related analyses. Volume II presents several special analysis reports dealing with driver vision knowledge, psychological make-up, etc. Human, environmental, and vehicular factors were studied as probable causes.
  • The Effects of Soil Binder and Moisture on Blackbase Mixtures
    The Effects of Soil Binder and Moisture on Blackbase Mixtures
    Ping, Wei-Chou Virgil ;
    Kennedy,Thomas W
    1979-05-01 | PDF
    This report describes a study which was undertaken to evaluate the effect of the amount of soil binder on the engineering properties of asphalt-treated paving materials. For this study soil binder was considered to be aggregate finer than U. S. standard sieve size No. 40. The static and repeated-load indirect tensile tests were used to measure engi ...
  • Annual Report of the Maritime Administration 1978 MARAD 1978
    Annual Report of the Maritime Administration 1978 [MARAD 1978]
    United States. Maritime Administration
    1979-05-01 | Annual Reports of the Maritime Administration | PDF
    Annual report of the Maritime Administration for fiscal year 1978. The report describes in detail the Agency's activities to promote and strengthen the American merchant marine.
  • Visit to the Pacific Coast Terminal of the Canadian Pacific Railroad
    Visit to the Pacific Coast Terminal of the Canadian Pacific Railroad
    Ploeger, Dale
    1979-04-30 | PDF
    The purpose of the trip was to inspect the installation of ten ASEA screw-type retarders. The retarders are a part of a sulfur-wood chip dumping facility. The ASEA retarders were installed to reduce the noise caused by empty freight cars when they couple (local residents had complained.) Ten units had been installed in two groups of three set to re ...
  • Some Notes on Terminal Process Control Computers
    Some Notes on Terminal Process Control Computers
    Tuan, Paul L
    1979-04-20 | PDF
    This informal note is the first of a series of preliminary material to record in capsule form the findings and observations relative to railroad terminal computers. This material will eventually serve as input to the preparation of the yard-design handbook. This note documents some of the observations derived during recent visits to the Southern Pa ...
  • OffPeak Ad Impact Study
    Off-Peak Ad Impact Study
    Action Data, Inc.
    1979-04-04 | PDF
    This report summarizes findings from Off- Peak Advertising Impact Research conducted for Queen City Metro. The purpose of this research is to assess the impact of QCM's "off- peak" advertising campaign. Methodology, analytical framework, study findings, and media strategy implications are presented below. Data tables and the survey questionnaire ar ...
  • Development and Evaluation of a Belt Restraint System for Small Cars Using Force Limiting
    Development and Evaluation of a Belt Restraint System for Small Cars Using Force Limiting
    Walsh, Michael J. ;
    Kelleher, Barbara J.
    1979-04-01 | PDF
    Development and evaluation of a force limited belt restraint system for small cars has been completed at Calspan Corporation. The belt restraint system with passive capability was developed through the use of three-dimensional computer simulations and sled tests. The system has demonstrated performance evaluation criteria values less than or equal ...
  • Retarder Control Algorithms of Knig Wong and WABCO
    Retarder Control Algorithms of König, Wong and WABCO
    Eckerle, Joseph S
    1979-03-20 | PDF
    The first step to improving the performance of retarder control algorithms is to conduct an exhaustive study of existing algorithms. Retarder control algorithms described in König’s 1969 paper and those used by WABCO (as revealed in their patents) are described. Two new algorithms proposed by Peter Wong are also described. The König paper is import ...
  • Polymer Concrete Development and Use in Oregon
    Polymer Concrete Development and Use in Oregon
    Quinn, William J.
    1979-03-15 | PDF
    The original work plan specified that laboratory tests would be conducted to determine the most suitable resins for overlay work. It must be pointed out that the Oregon State Highway Division was not set up to do polymer research, but only to test existing resin formulations that were readily available from chemical companies. After a literature se ...
  • East Deerfield Yard Mainline Relocation
    East Deerfield Yard – Mainline Relocation
    Sakasita, Masami
    1979-03-11 | PDF
    One of the major problems at the East Deerfield railroad yard is that the mainline goes through the middle of the yard, thus creating a substantial number of mainline crossing movements between one side of the yard and the other. The purpose of this short working note is to document the alternatives considered in the mainline relocation study proce ...
  • OrderofMagnitude Comparisons of Various Energy Dissipating Mechanisms
    Order-of-Magnitude Comparisons of Various Energy Dissipating Mechanisms
    Kiang, Robert L
    1979-03-08 | PDF
    This note compares the order of magnitude of various energy dissipating mechanisms in a classification yard, including: Rolling Resistance on Tangent Track, Rolling Resistance on a Curved Track, Wind Resistance, Switch Resistance, Conventional Retarders, Dowty Retarders, ASEA Spiral Retarders. It takes 22 Dowty Retarders or 3 ASEA Retarders to equa ...
  • Methodology for Predicting the Reflection Cracking Life of Asphalt Concrete Overlays
    Methodology for Predicting the Reflection Cracking Life of Asphalt Concrete Overlays
    Germann, Frederick P. ;
    Lytton, Robert L.
    1979-03-01 | PDF
    An experimental testing procedure has been established in the report, for quantitative analysis of overlays designed to reduce reflection cracking. From this testing procedure the overlay scheme that shows the most resistance to cracking can be chosen. The procedure uses crack propagation tests on overlay samples which are conducted on a machine ca ...
  • ConcretePolymer Materials for Highway Applications
    Concrete-Polymer Materials for Highway Applications
    Fowler, David W. ;
    Paul, Donald R
    1979-03-01 | PDF
    The use of concrete-polymer materials for highway applications has been studied with the objective of providing durable materials that would reduce maintenance in highway structures. Several significant developments resulted from this research. Partial-depth polymer impregnation was developed for improving durability of bridge decks. The process in ...
  • Land Use Impact of Improving Gessner Road in a Developing Area in Houston Texas
    Land Use Impact of Improving Gessner Road in a Developing Area in Houston, Texas
    Cosby, Pamela J. ;
    Herndon Jr, Cary W.
    1979-03-01 | 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 ...
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