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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 33901 - 33920 of 36710 results
  • Accuracy of Virginia accident data
    Accuracy of Virginia accident data.
    Hargroves, Bradley T. ;
    Hargroves, Julie M.
    1981-09-01 | PDF
    The sources, magnitude, and characteristics of the inaccuracies in Virginia's police-reported accident data were examined. Five techniques were used to (1) determine how accident data are documented, (2) examine the contents of the accident report used to collect the data, and (3) document problems relating to the accuracy of the data. Recommendati ...
  • Evaluation of high mast luminaire lowering devices in Oregon
    Evaluation of high mast luminaire lowering devices in Oregon.
    Beecroft, Gordon ;
    Anderson, Judy
    1981-09-01 | PDF
    High mast luminaire lowering devices were installed on two projects in Oregon following approval by the Department of Transportation, Federal Highway Administration, of the installations as experimental features projects. Holophane Company, Inc., supplied 23 unites that were installed on the Seventh Avenue - Willamette River Section of I-105 near E ...
  • Evaluating Urban Freeway Guide Signing Executive Summary and Level of Service
    Evaluating Urban Freeway Guide Signing – Executive Summary and Level of Service
    Messer, Carroll J. ;
    McNees, Roger W.
    1981-09-01 | PDF
    This report presents an executive summary and level of service concept for Urban Freeway Guide Signing. This report is the final report for Research Project 2-18-77-220 entitled, "Evaluating Urban Freeway Guide Signing". The scope of this project was to isolate problem areas with Urban Freeway Guide Signing, develop alternative solutions to these p ...
  • A computer program HEVSIM for heavy duty vehicle fuel economy and performance simulation Volume II Users Manual
    A computer program (HEVSIM) for heavy duty vehicle fuel economy and performance simulation : Volume II: Users' Manual
    Buck, Richard E.
    1981-09-01 | PDF
    This report presents a description of a vehicle simulation program, which can determine the fuel economy and performance of a specified motor vehicle over a defined route as it executes a given driving schedule. Vehicle input accommodated by HEVSIM include accessories, engine, rear axle, converter, transmission, tires, aerodynamic drag coefficient, ...
  • An Analysis of the Regulated Motor Carrier Industry in North Dakota
    An Analysis of the Regulated Motor Carrier Industry in North Dakota
    Wilson, Wesley W.
    1981-09-01 | PDF
    The objectives of this study are to define the regulatory environment of interstate and intrastate motor carriers, to compare the North Dakota intrastate motor carrier industry's financial characteristics to a nationwide industry-norm, and to analyze trends of the North Dakota intrastate motor carrier industry over a 20-year period.
  • Computerized Method of Projecting Rehabilitation and Maintenance Requirements Due to Vehicle Loadings Volume 4 Users Manual
    Computerized Method of Projecting Rehabilitation and Maintenance Requirements Due to Vehicle Loadings Volume 4: User’s Manual
    Garcia-Diaz, Alberto ;
    Lytton, Robert L.
    1981-08-01 | PDF
    Instructions are provided for users of the program RENU which provides methodology for determining the effects of changes in truck size, weight, and configuration on pavement performance and for relating these effects to pavement maintenance and rehabilitation needs and costs. This manual summarizes the evaluation procedure, describes all input par ...
  • The Intercity Bus Industry in the US and Texas
    The Intercity Bus Industry in the U.S. and Texas
    Urbanik II, Thomas ;
    Bass, Patti L.
    1981-08-01 | PDF
    The primary intent of the study was to develop information and data to provide a definition of the nature and extent of intercity bus transportation in Texas. From a sound base of information, various alternative actions could then be evaluated. A primary area of concern is regulation and the impacts of regulatory changes on service in Texas. Anoth ...
  • A comparison of some effects of three antimotion sickness drugs on nystagmic responses to angular accelerations and to optokinetic stimuli
    A comparison of some effects of three antimotion sickness drugs on nystagmic responses to angular accelerations and to optokinetic stimuli.
    Collins, William E. ;
    Schroeder, David J.
    1981-08-01 | PDF
    This study examined the influence of three established antimotion sickness drugs on nystagmic eye movement responses to angular acceleration (whole-body movement) with vision either permitted or denied, and to optokinetic stimulation (visual field movement).Dimenhydrinate and promethazine hydrochloride, particularly at higher dose levels, reduced o ...
  • A Review of Work Zone Safety Programs in Selected States
    A Review of Work Zone Safety Programs in Selected States
    Faulkner, Michael J. S. ;
    Richards, Stephen H.
    1981-08-01 | PDF
    This report documents a nationwide survey conducted to evaluate various states' work zone traffic safety programs established in response to FHPM 6-4-2-12. The survey was sponsored by the Texas State Department of Highways and Public Transportation in an effort to optimize their own work zone traffic safety program. Input from 44 states was reviewe ...
  • Computerized Method of Projecting Rehabilitation and Maintenance Requirements Due to Vehicle Loadings Volume 5F
    Computerized Method of Projecting Rehabilitation and Maintenance Requirements Due to Vehicle Loadings: Volume 5F
    Garcia-Diaz, Alberto ;
    Lytton, Robert L.
    1981-08-01 | PDF
    The goal of this research project is to revise and combine the REHAB and NULOAD computer models into a new approach to forecast pavement rehabilitation costs. The new approach is called RENU and it incorporates the following three main elements: (a) revised pavement performance equations, (b) design-oriented survivor curves, and (c) a procedure to ...
  • Traffic Control at the I10 Reconstruction Work Zone in Chambers County Texas
    Traffic Control at the I-10 Reconstruction Work Zone in Chambers County, Texas
    Faulkner, Michael J. S. ;
    Richards, Stephen H.
    1981-08-01 | PDF
    Studies were conducted at a major maintenance work zone on a rural Interstate highway in Texas to evaluate the use of Highway Advisory Radio (HAR) for work zone traffic management. The studies consisted of lane distribution, volume and vehicle classification counts (conducted before and during operation of the HAR), and a questionnaire survey admin ...
  • Papers and Proceedings of the Trucking in North Dakota Management Conference
    Papers and Proceedings of the Trucking in North Dakota Management Conference
    Casavant, Kenneth L. ;
    Finsness, John
    1981-08-01 | PDF
    The purposes of this presentation are to provide descriptive characteristics of the industry to be used for comparative purposes, to provide a methodology to calculate. Costs as well as to discuss various operational characteristics which affect costs, and to discuss various techniques of cost-based pricing.
  • An integrated pavement data management and feedback system PAMS a feasibility report
    An integrated pavement data management and feedback system (PAMS) : a feasibility report.
    Shah, S. C. ;
    Kinchen, Richard W.
    1981-08-01 | PDF
    This feasibility study report discusses the present practices followed by the Department to manage some 16,000 miles of highways. The practices were defined through existing policy manuals and discussions with individuals and/or sections who have some responsibility in the pavement management processes. The major thrust towards this feasibility eff ...
  • LevelofService Concept Applied to Public Transportation
    Level-of-Service Concept Applied to Public Transportation
    Bullard, Diane L. ;
    Christiansen, Dennis L.
    1981-08-01 | PDF
    This report presents a preliminary level-of-service (LOS) concept applicable to fixed-route, fixed-schedule transit systems in Texas. This concept was based on the results of a review of existing LOS models and interviews with transit professionals across the state concerning how their systems currently evaluate the level-of-service being provided. ...
  • Agricultural Trucking Growth in North Dakota
    Agricultural Trucking Growth in North Dakota
    Griffin, Gene C.
    1981-08-01 | PDF
    There are at least two basic reasons for the tremendous growth in trucking of exempt commodities in the past six years: a protracted rail transportation capacity shortage and grain handling capacity shortage which lasted from October of 1977 through January of 1980; and rail pricing policy which made trucking of exempt commodities profitable.
  • Internally Sealed Concrete at Cow Creek Oklahoma
    Internally Sealed Concrete at Cow Creek, Oklahoma
    Stewart, Jack C. ;
    Pourkhosrow, Ghasem
    1981-08-01 | PDF
    This report discusses Oklahoma's second experimental internally sealed concrete bridge deck. It differed from the first on in that it contained wax beads only in the top two inches as opposed to full depth and it covered the entire deck instead of just one span. The objective of this study was to gain experience in placing and heating a wax impregn ...
  • ShortRange Transit Plan for the Phoenix Urbanized Area Fiscal Years 19821986
    Short-Range Transit Plan for the Phoenix Urbanized Area: Fiscal Years 1982–1986
    Maricopa Association of Governments  ...
    1981-07-21 | PDF
    Report presents the FY 1980-81 update of the Phoenix, Arizona, urbanized area Short Range Transit Plan. It describes a five-year plan to guide improvements of the public transportation sytem. Planning aspects of the report will be incorporated into the regional transportation plan and the regional Tranmsportation Improvement Program. The study desc ...
  • An Evaluation of Work Zone Traffic Accidents Occurring on Texas Highways in 1977
    An Evaluation of Work Zone Traffic Accidents Occurring on Texas Highways in 1977
    Richards, Stephen H. ;
    Faulkner, Michael J. S.
    1981-07-01 | PDF
    This report documents the findings of a work zone traffic accident study conducted in Texas in 1977. The study revealed that there were nearly 8,000 work zone accidents on state-maintained streets and highways during the study year. These accidents, although less severe than accidents in general, resulted in 73 deaths and nearly 2,900 injuries. In ...
  • Selection of applicants for the air traffic controller occupation
    Selection of applicants for the air traffic controller occupation.
    Rock, Donald B. ;
    Dailey, John T.
    1981-07-01 | PDF
    This report covers personnel research efforts during the past nine years directed toward improving the selection of applicants to work in the Air Traffic Control occupation. The report summarizes the various research efforts and makes specific recommendations for changes in present OPM tests through which applicants qualify for employment considera ...
  • The prevalence of visual deficiencies among 1979 general aviation accident airmen
    The prevalence of visual deficiencies among 1979 general aviation accident airmen.
    Dille, J.R. ;
    Booze, C.F.
    1981-07-01 | PDF
    Analyses of the accident experience of pilots who were monocular, did not meet (even the liberal) vision standards, had color vision defects and no operational restrictions, or wore contact lenses, have shown higher-than-expected accident experience in previous studies. However, no causal role had been assigned by accident investigators and reexami ...
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