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US Transportation Collection

rosaP Repository & Open Science Access Portal

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 27661 - 27680 of 35564 results
  • TDM Case Studies and Commuter Testimonials
    TDM Case Studies and Commuter Testimonials
    Association for Commuter Transportation. Transportation Demand Management Institute
    1998-01-01 | PDF
    When the effects of Travel demand management (TDM) are quantified, it's usually in terms of mode splits, vehicle miles traveled, average vehicle ridership, pounds of pollutants saved, and so forth. But to fully appreciate the effect of TDM strategies, we have to set the numbers aside for a moment and look at the lives of real people, real companies ...
  • Inventory of Main Standards and Parameters of the Waterway Network Blue Book as Amended by Addenda 1 and 2
    Inventory of Main Standards and Parameters of the Waterway Network ("Blue Book") as Amended by Addenda 1 and 2
    United Nations. Economic Commission for Europe
    1998-01-01 | PDF
    At its fortieth session, the UN/ECE Working Party on Inland Water Transport (SC.3) agreed to proceed with the drafting of the so-called "blue book" which would contain technical characteristics of European inland waterways and ports of international importance (E waterways and ports) identified in the European Agreement on Main Inland Waterways of ...
  • Traffic Crash Statistics Report 1997
    Traffic Crash Statistics Report, 1997
    Florida. Dept. of Highway Safety & Motor Vehicles
    1998-01-01 | PDF
    The information contained in this Traffic Crash Facts booklet is extracted from law enforcement agency long-form reports of traffic crashes. A law enforcement officer must submit a long-form crash report when investigating: Motor vehicle crashes resulting in death or personal injury, or Motor vehicle crashes in which one or more of the following co ...
  • 1998 Iowa Crash Summary A Summary of Motor Vehicle Crash Statistics on Iowa Roadways
    1998 Iowa Crash Summary: A Summary of Motor Vehicle Crash Statistics on Iowa Roadways
    Iowa. Dept. of Transportation
    1998-01-01 | PDF
    All information concerning Iowa traffic crashes was taken from report forms provided by investigating officers and drivers involved in crashes. All statistics are gathered and calculated by the Iowa Department of Transportation’s Office of Driver Services. National statistics are obtained from “Traffic Safety Facts 1998” published by the U.S. Depar ...
  • 1998 Pennsylvania Crash Facts and Statistics
    1998 Pennsylvania Crash Facts and Statistics
    Pennsylvania. Dept. of Transportation
    1998-01-01 | PDF
    The 1998 Pennsylvania Crash Facts and Statistics booklet is a report published by the Bureau of Highway Safety and Traffic Engineering, Pennsylvania Department of Transportation. Permission is given to freely copy and distribute this booklet and the information within it. This publication is a statistical review of reportable motor vehicle crashes ...
  • Investigation of Cracks in Cylindrical SpunCast Concrete Piles In a Marine Environment Technical Summary
    Investigation of Cracks in Cylindrical Spun-Cast Concrete Piles In a Marine Environment: Technical Summary
    Avent, Richard ;
    Mukai, D. J.
    1998-01-01 | PDF
    The objectives of this project were: 1) evaluate the extent of cracks in 54-inch cylindrical spun-cast concrete piles in Louisiana; 2) identify the piles exhibiting the worst cracking; 3) evaluate the in-situ condition of the most severely cracked piles by non-destructive evaluation (NDE) methods; 4) identify possible causes of these cracks, and; 5 ...
  • Conceptual plan for closer integration of network and projectlevel pavement management
    Conceptual plan for closer integration of network- and project-level pavement management
    Pilson, C. C. ;
    McCullough, B. F.
    1998-01-01 | PDF
    This report presents an evaluation of current performance modeling concepts and a feasibility study of the possibility of integrating network- and project-level performance prediction. The widely differing modeling methods in use today are reviewed and the design and management systems in use in TExas are briefly discussed.
  • Kivihiilivoimalan Sivutuotteiden Maarakennuskaeytoen Elinkaariarviointi
    Kivihiilivoimalan Sivutuotteiden Maarakennuskaeytoen Elinkaariarviointi
    Eskola, P. ;
    Mroueh, U. M.
    1998-01-01 | PDF
    The goal of this project was to assess the environmental impact of using fly ash and flue gas desulphurization (FGD) residues (produced by pulverized coal-fired power plants which employ semi dry scrubbing technology) in earthworks. The use of fly ash and FGD residues was compred with the use of natural minerals (sand, gravel and macadam) in road c ...
  • An overview of the US commercial space launch infrastructure Quarterly Launch Report special report
    An overview of the U.S. commercial space launch infrastructure : Quarterly Launch Report : special report
    United States. Federal Aviation Administration. Office of the Associate Administrator for Commercial Space Transportation
    1998-01-01 | PDF
    The commercial space transportation industry has witnessed unparalleled growth in the number of commercial launches over the past few years. Last year witnessed the largest number yet, 35 commercial launches worldwide, nearly twice the 21 commercial launches of the previous year. The United States, in particular, has experienceddramatic growth in c ...
  • Method to enhance the performance of synthetic origindestination OD trip table estimation models
    Method to enhance the performance of synthetic origin-destination (O-D) trip table estimation models.
    Sivannadan, R. ;
    Nanda, D.
    1998-01-01 | PDF
    The conventional methods of determining origin-destination (O-D) trip tables involve elaborate surveys, e.g., home interviews, that require considerable time, staff, and funds. To overcome this drawback, a number of theoretical models that synthesize O-D trip tables from link volume data have been developed. The focus of the research reported here ...
  • Illinois travel statistics 1997
    Illinois travel statistics, 1997
    Illinois. Dept. of Transportation
    1998-01-01 | PDF
    The mileage and vehicle miles of travel data in the following tables are based onroads/streets located within the District's geographical boundaries (AdministrativeDistrict).Vehicle miles of travel (VMT) are calculated by multiplying the mileage times the annualaverage daily traffic (AADT). VMT data are expressed as either daily vehicle miles oftra ...
  • Comparison of several asphalt design methods
    Comparison of several asphalt design methods.
    Maupin, G. W.
    1998-01-01 | PDF
    This laboratory study compared several methods of selecting the optimum asphalt content of surface mixes. Six surface mixes were tested using the 50-blow Marshall design, the 75-blow Marshall design, two brands of SHRP gyratory compactors, and the U.S. Army Corps of Engineers' gyratory testing machine (GTM) with the oil-filled and the air-filled ro ...
  • Assessment of opportunities for enhanced cooperation in acquiring and disseminating weather data among selected Virginia government agencies
    Assessment of opportunities for enhanced cooperation in acquiring and disseminating weather data among selected Virginia government agencies.
    Eaton, L. S. ;
    Lin, M. A.
    1998-01-01 | PDF
    Accurate and timely information regarding impending weather conditions is important to several public agencies in Virginia. Potential problems including flooding, heavy snowfall, and damaging winds necessitate planning and pre-event deployment by many units of Virginia agencies. The acquisition and dissemination of weather reports and forecasts can ...
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    Improving the continued airworthiness of civil aircraft : a strategy for the FAA's Aircraft Certification Service
    National Research Council (U.S.). Committee on Aircraft Certification Safety Management
    1998-01-01 | PDF
    The National Research Council (NRC) was asked to conduct an independent assessment of the safety management process used by the Aircraft Certification Service of the Federal Aviation Administration (FAA) to define how the current process might be improved. The committee was asked to review common causes of accidents and incidents involving civil ai ...
  • Review of PCR methodology executive summary
    Review of PCR methodology : executive summary.
    Saraf, Chhote
    1998-01-01 | PDF
    This study was conducted to review the Pavement Condition Rating (peR)methodology currently used by the Ohio DOT. The results of the literature search in thisconnection indicated that many Highway agencies use a similar methodology to rate theirpavements. However, due to the linear nature of the current peR model, it is deficient incertain respects ...
  • Implementing benchmarking recommendations in the Offices of Construction for the Iowa DOT
    Implementing benchmarking recommendations in the Offices of Construction for the Iowa DOT
    Federle, MO ;
    Jahren, CT
    1998-01-01 | PDF
    The Iowa DOT's Offices of Construction are seeking ways to use benchmarking, the concepts of quality management, and outside facilitation to improve their methods and processes. Iowa State University researchers and the Offices of Construction Benchmarking Steering team have developed a performance measuring system and have collected considerable b ...
  • Pavement management segment consolidation
    Pavement management segment consolidation
    Deighton Associates Limited
    1998-01-01 | PDF
    Dividing roads into "homogeneous" segments has been a major problem for all areas of highway engineering. SDDOT uses Deighton Associates Limited software, dTIMS, to analyze life-cycle costs for various rehabilitation strategies on each segment of road in its network. Unfortunately, dTIMS makes the "optimal" strategy selection for each segment indep ...
  • Collision diagram software compatability with Iowa accident database
    Collision diagram software compatability with Iowa accident database
    Gerken, J ;
    Mescher, P
    1998-01-01 | PDF
    The Iowa DOT was interested in automated collision diagram products. The Center for Transportation Research and Education (CTRE), an Iowa State University center, completed an evaluation. This paper presents the findings. An automated collision diagram program quickly and accurately generates a graphic of intersection accident history. Limited huma ...
  • Development of improved injury criteria for the assessment of advanced automotive restraint systems
    Development of improved injury criteria for the assessment of advanced automotive restraint systems
    Eppinger, Rolf ;
    Kleinberger, Michael
    1998-01-01 | PDF
    The National Highway Traffic Safety Administration's (NHTSA) plans for upgrading the Federal Motor Vehicle Safety Standard (FMVSS) No. 208, frontal crash protection safety standard, include improving protection requirements for the normally seated mid-sized adult male, as well as including additional requirements that will specify minimum requireme ...
  • Crack Sealing and Repair of Older Serviceable Bridges Using Polymer Sealers
    Crack Sealing and Repair of Older Serviceable Bridges Using Polymer Sealers
    Meggers, David A.
    1998-01-01 | PDF
    The objective of this study is to determine the feasibility of using High Molecular Weight Methacrylate (HMWM) and Epoxy Healer Sealers for crack sealing and repair of older serviceable bridges. The study included the field application of two HMWM materials and one Epoxy material to eight bridges throughout Kansas. The field application of the mate ...
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