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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 30641 - 30660 of 35438 results
  • Wet weather highway accident analysis and skid resistance data management system volume II users manual
    Wet weather highway accident analysis and skid resistance data management system (volume II : user's manual).
    McIlhenny, R.C. ;
    Lee, K.S.
    1992-06-01 | PDF
    The objectives and scope of this research are to establish an effective methodology for wet weather accident analysis and to develop a database management system to facilitate information processing and storage for the accident analysis process, skid resistance testing, and other related tasks.
  • Spatial information and modeling system for transportation SIMST final report
    Spatial information and modeling system for transportation (SIMST) : final report.
    Harlow, Charles A. ;
    Goodman, Jane
    1992-06-01 | PDF
    This project was directed toward research in the development of spatial information systems for transportation. The project and all software development was done in the Intergraph MGE environment. One objective was to investigate software tools for locating spatial data. A system called the Archival Management System (AMS was developed to assist in ...
  • Traffic accident simulation final report
    Traffic accident simulation : final report.
    Beard, James E.
    1992-06-01 | PDF
    The purpose of this research was to determine if HVOSM (Highway Vehicle Object Simulation Model) could be used to model a vehicle with a modern front (or rear) suspension system such as a McPherson strut and have the results of the dynamic model be valid. To accomplish this task, the types of suspension systems modeled in HVOSM and how they were ma ...
  • Crash testing of Louisianas multidirectional single steel post small sign support
    Crash testing of Louisiana's multi-directional, single steel post, small sign support.
    Bullard, D. Lance
    1992-06-01 | PDF
    The Louisiana Department of Transportation and Development (LDOTD) contracted with the Texas Transportation Institute (TTI) to evaluate the impact characteristics of Louisiana's multi-directional 5 inch diameter steel post, small sign support when impacted by an 1,800 lb vehicle at 20 and 60 mi/h. However, only the low-speed crash test was conducte ...
  • Research notes research unit equipment for loan
    Research notes : research unit equipment for loan.
    Oregon. Department of Transportation. Materials and Research Section
    1992-06-01 | PDF
    The Research Unit has acquired, through the years, a number of specialized pieces of equipment. These devices are primarily data gathering and measurement devices.The Research Unit will loan, on a short-term basis, the following specialized equipment to other ODOT UNITS:1) IBM P70 Portable Computer;2) Battery Powered Data Loggers;3) Re-bar Finder & ...
  • Comparisons of Molecular Sieve Oxygen Concentrators for potential medical use aboard commercial aircraft
    Comparisons of Molecular Sieve Oxygen Concentrators for potential medical use aboard commercial aircraft.
    England, H.M. ;
    Wilcox, B.C.
    1992-06-01 | PDF
    Medically-impaired air travelers requiring supplemental oxygen must depend on airlines to provide oxygen cylinders. Performance, space, and cost are considerations in providing this service. Tests were conducted in an altitude chamber to assess the viability of Molecular Sieve Oxygen Concentrators (MSOC) as an alternative. Five different MSOC were ...
  • Procedural Justice Occupational Identification and Organizational Commitment
    Procedural Justice, Occupational Identification, and Organizational Commitment
    Witt, L.A.
    1992-06-01 | PDF
    Extending Tyler's (1989) group-value model, the present study tested the hypothesis that procedural justice may be of differential salience in the development of organizational commitment among individuals who identify primarily with their employing organization versus their occupation. Data collected from 1,235 FAA employees indicated that procedu ...
  • Institutionalizing the drug evaluation and classification program in the states a report to Congress
    Institutionalizing the drug evaluation and classification program in the states : a report to Congress
    United States. Department of Transportation. National Highway Traffic Safety Administration
    1992-06-01 | PDF
    No Description
  • Engineman Stress and Fatigue Pilot Study
    Engineman Stress and Fatigue: Pilot Study
    Kuehn, George I.
    1992-06-01 | PDF
    In this pilot study, the effects of fatigue on the train handling performance and vigilance of four certified train service locomotive engineers was assessed while they operated the Federal Railroad Administration (FRA), Research and Locomotive Evaluator/Simulator (RALES), Subjects operated on an hourly cycle of 12 work-12 rest-8 work as a "normal" ...
  • The Simulation of Area Wide Real Time Traffic ControlFinal Report
    The Simulation of Area Wide Real Time Traffic Control–Final Report
    Kim, Junguk L. ;
    Liu, Steve J. C.
    1992-06-01 | PDF
    This study was performed to develop the Area-Wide Real-Time Traffic Control (ARTC) System which uses real-time traffic flow information and design signal timing plans online. The ARTC system consists of microcontrollers at each intersection to perform signal timing computations which are connected to each other by a communication network. The signa ...
  • Guidelines on the Use and Operation of Changeable Message Signs
    Guidelines on the Use and Operation of Changeable Message Signs
    Dudek, Conrad L.
    1992-06-01 | PDF
    This report is intended to be a primer on the characteristics that affect the design, use and operations of changeable message signs (CMSs), and to provide guidance on the selection of the appropriate type of CMS display. Guidelines on the selection and design of CMS messages are presented in a companion Report No. FHWA/TX-92/1232-10 entitled, "Gui ...
  • Development Testing and Evaluation of a Nodal Restraint Assignment Procedure
    Development, Testing and Evaluation of a Nodal Restraint Assignment Procedure
    Yuan-Wang, Chen ;
    Benson, Jim D.
    1992-06-01 | PDF
    This research proposed a traffic assignment procedure in which capacity restraints are applied to nodes instead of links. The development is based on the concept that the capacity of an urban street system is constrained by nodes (intersections) instead of links. The nodal restraint assignment procedure was developed by utilizing the concept of the ...
  • Control of Sediment Deposition at Big Sandy Draw Bridge and Interstate 20
    Control of Sediment Deposition at Big Sandy Draw Bridge and Interstate 20
    Claborn, Billy J.
    1992-06-01 | PDF
    The objective of this study was to identify causes and recommend remedial measures for the sand deposition at the Big Sandy Draw bridges on Interstate 20. The source of the sand is both water and wind erosion on the 11.3 sq mi watershed. Deposition in the vicinity of the bridges is caused by severe backwater from Beals Creek, located about one-quar ...
  • The Performance Evaluation of Single Pass Thin Lift Bituminous Overlays
    The Performance Evaluation of Single Pass Thin Lift Bituminous Overlays
    Reed, Christine M.
    1992-06-01 | PDF
    In the mid-1980s, the Illinois Department of Transportation (IDOT) found itself challenged to maintain an aging highway network at an acceptable level of service on a limited financial base. This made programming rehabilitations for the rural highways difficult under the existing rehabilitation policies. In an effort to minimize the required mainte ...
  • Initial Analysis of Cathodic Protection Systems on US 87 Railroad Overpass Bridge Big Spring Texas
    Initial Analysis of Cathodic Protection Systems on U.S. 87 Railroad Overpass Bridge: Big Spring, Texas
    Parker, Harry W. ;
    Nash, Phillip T.
    1992-05-29 | PDF
    Five individual cathodic protection systems were installed on the U.S. 87 Missouri-Pacific Railroad overpass structure in Big Spring, Texas. The cathodic protection systems were installed in October 1988 as a demonstration project to compare the various systems. Three distributed anode types were used to protect the bridge deck: (1) titanium mesh; ...
  • Final Programmatic Environment Impact Statement for Commercial Reentry Vehicles
    Final Programmatic Environment Impact Statement for Commercial Reentry Vehicles
    United States. Federal Aviation Administration. Office of Commercial Space Transportation
    1992-05-28 | PDF
    To ensure that space launch services provided by private enterprises are consistent with national security and foreign policy interests of the U.S., and do not jeopardize public safety and safety of property, the Department of Transportation (DOT) is authorized to regulate and license U.S. commercial launch activities. Within DOT, the Secretary's a ...
  • MV Santa Clara I Board of Inquiry Report Concerning The Loss of Hazardous Materials Near the New Jersey Coast on 3 January 1992
    M/V Santa Clara I - Board of Inquiry Report Concerning The Loss of Hazardous Materials Near the New Jersey Coast on 3 January 1992
    United States. Coast Guard
    1992-05-18 | PDF
    This report examines the circumstances surrounding the loss of 4 containers of arsenic trioxide, a hazardous substance, overboard from the Panamanian M/V SANTA CLARA I during heavy weather approximately 40 miles off the New Jersey coast on January 3, 1992. 17 additional containers were also lost during the accident. While the vessel incurred minor ...
  • Interagency Coordinating Committee on Structural Ceramics FY 1992
    Interagency Coordinating Committee on Structural Ceramics FY 1992
    W. J. Schafer Associates, Inc.
    1992-05-13 | PDF
    The Interagency Coordinating Committee on Structural Ceramics (ICCSC) held its annual meeting May 13, 1992. The primary function of the ICCSC is communication and coordination among managers of federally funded research and development programs in structural ceramics. The focus of the Committee is on structural ceramic materials, including both mon ...
  • Brugg Cable Mesh Rockfall Fence construction report
    Brugg Cable Mesh Rockfall Fence : construction report.
    D'Agnese, Susanne L.
    1992-05-01 | PDF
    No Description
  • Research notes identification of scour critical bridges using geophysical techniques
    Research notes : identification of scour critical bridges using geophysical techniques.
    Oregon. Department of Transportation. Materials and Research Section
    1992-05-01 | PDF
    Three geophysical methods were used to examine 14 bridge sites in Oregon, to determine the usefulness of each method in locating and determining depth of infilled scour holes around bridge piers in Oregon streams. Each geophysical method was capable of detecting infilling around piers,but because of equipment limitations, not every method was effec ...
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