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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 29941 - 29960 of 35440 results
  • Implications of Electronic Clearance for Regulatory Enforcement of the Trucking Industry
    Implications of Electronic Clearance for Regulatory Enforcement of the Trucking Industry
    Titus, Matthew
    1994-10-01 | PDF
    This project was conducted in an effort to add knowledge to the issue of using advanced information technology in commercial vehicle weight and safety regulatory enforcement. Specifically, the project attempted to assess the impacts of the Commercial Vehicle Operations component of the Intelligent Transportation Systems program on the enforcement o ...
  • Alternative Fuels and Vehicles Choice Model
    Alternative Fuels and Vehicles Choice Model
    Greene, David L.
    1994-10-01 | PDF
    This report describes the theory and implementation of a model of alternative fuel and vehicle choice (AFVC), designed for use with the United States Department of Energy's Alternative Fuels Trade Model (AFTM). The AFTM is a static equilibrium model of the world supply and demand for liquid fuels, encompassing resource production, conversion proces ...
  • SweetHART operational analysis final report
    SweetHART operational analysis : final report
    Housatonic Area Regional Transit
    1994-10-01 | PDF
    Paratransit service, known as SweetHART, has grown steadily in the Housatonic Valley Region since it was regionalized and expanded under public auspices in 1978. Eight municipalities receive SweetHART service as provided by the Housatonic Area Regional Transit District (HART). Usage of paratransit service in this Region has more than doubled in the ...
  • Urban Highway Operations and Implementation Program Overview and Summary
    Urban Highway Operations and Implementation Program Overview and Summary
    Urbanik II, Thomas
    1994-10-01 | PDF
    This report summarizes the main conclusions resulting from the research study. The study provided an effective implementation document, the Texas Highway Operations Manual, and a coordinated program of highway operations research that has advanced the practice traffic operations in Texas and the United States.
  • Optimizing Detector Placement for High Speed Isolated Signalized Intersections Using Vehicular Delay as the Criterion
    Optimizing Detector Placement for High Speed Isolated Signalized Intersections Using Vehicular Delay as the Criterion
    Woods, Donald L. ;
    Koniki, Lakshmi Manasa
    1994-10-01 | PDF
    On high-speed approaches to an isolated intersection, providing for dilemma zone protection may result in sluggish operation and this, in turn, may result in higher delays. A trade-off analysis of detector placement is, therefore, essential for optimization of dilemma zone protection and reducing delays. TEXAS Model (Version 3.2) was employed to de ...
  • Physical and AccessLocational Characteristics of Remainders of Partial Takings Significantly Affecting Right of Way Costs
    Physical and Access/Locational Characteristics of Remainders of Partial Takings Significantly Affecting Right of Way Costs
    Buffington, Jesse L. ;
    Chui, Margaret K.
    1994-10-01 | PDF
    Highway right-of-way costs have accelerated in recent years, especially in suburban and urban areas of Texas. Thus, further efforts are being made by Texas Department of Transportation (TxDOT) officials to find ways to reduce or hold down such costs. One of the efforts helped to enact a new law determining the compensation paid property owners for ...
  • Victoria Superheavy Load Move Report on Route Assessment and Pavement Modeling
    Victoria Superheavy Load Move: Report on Route Assessment and Pavement Modeling
    Jooste, Fritz J. ;
    Fernando, Emmanuel G.
    1994-10-01 | PDF
    The Texas Department of Transportation (TxDOT) has been issuing an increasing number of permits for movement of superheavy loads. The effect of superheavy loads on pavements is not well established at the present time. To address this problem, TxDOT has funded a research project with the Texas Transportation Institute (TTI) with the objective of de ...
  • Travel Forecasting Guidelines
    Travel Forecasting Guidelines
    Bass, Patricia L. ;
    Perkinson, Dennis G.
    1994-10-01 | PDF
    Implementing transportation improvements requires a significant effort that may involve several levels of planning; social, economic and environmental documentation; geometric and structural design; operations analysis; signalized intersection design; and/or pavement design. Accurate and timely traffic estimates and forecasts are basic to the entir ...
  • Evaluation of Urban Travel Survey Methodologies
    Evaluation of Urban Travel Survey Methodologies
    Pearson, David F. ;
    Dresser, George B.
    1994-10-01 | PDF
    This report documents the evaluation of the methodologies used in the travel surveys done in five urban areas in Texas in 1990 and 1991. Based on those evaluations, specific recommendations are made in the areas of sample size estimation, survey methodologies, data specifications, survey instruments, etc. Surveys evaluated include household surveys ...
  • An Evaluation of HighOccupancy Vehicle Lanes in Texas 1993
    An Evaluation of High-Occupancy Vehicle Lanes in Texas, 1993
    Henk, Russell H. ;
    Morris, Daniel E.
    1994-10-01 | PDF
    This report evaluates the operation of freeway high-occupancy vehicle (HOV) lanes in Texas through calendar year 1993. As of the end of 1993, HOV lanes were in operation on the five following Houston freeways: 1) Katy Freeway (l-10W); 2) North Freeway (l-45N); 3) Northwest Freeway (U.S. 290); 4) Gulf Freeway (l-45S); and 5) Southwest Freeway (U.S. ...
  • Retroreflective Raised Pavement Markers A TwoYear Field Evaluation in Texas
    Retroreflective Raised Pavement Markers: A Two-Year Field Evaluation in Texas
    Ullman, Gerald L.
    1994-10-01 | PDF
    This report documents the results of field testing seventeen types of retroreflective raised pavement markers (RRPMs) installed in August 1992 at four interstate locations around San Antonio, Texas. Reflectivity measurements were taken periodically at each site using a portable retroreflectometer. These data were supplemented with laboratory reflec ...
  • An Automated System for Accumulating Count Recorder ACR Field Data Collection
    An Automated System for Accumulating Count Recorder (ACR) Field Data Collection
    Li, ShiFeng ;
    Zhang, Zhanmin
    1994-10-01 | PDF
    The Texas Department of Transportation (TxDOT) records traffic counts at tens of thousands of locations throughout the state. Such traffic information is crucial to statewide planning, forecasting, and roadway design programs. Moreover, such information is reviewed by the federal government in determining the amount of highway funds to be allocated ...
  • Microsilica modified concrete for bridge deck overlays secondyear interim report
    Microsilica modified concrete for bridge deck overlays : second-year interim report.
    James, Charles P. ;
    Miller, Bo
    1994-10-01 | PDF
    This report summarizes the performance of microsilica concrete (MC) overlays on seven distressed portland cement concrete bridge decks at three sites in Oregon. This report emphasizes the overlays' condition after two, or in some cases, three years of use.After two or three years, there was cracking on all seven overlays and delamination on five ov ...
  • Dynamics of the McDonnell Douglas Large Scale Dynamic Rig and Dynamic Calibration of the Rotor Balance
    Dynamics of the McDonnell Douglas Large Scale Dynamic Rig and Dynamic Calibration of the Rotor Balance
    Nguyen, Khanh ;
    Lau, Benton
    1994-10-01 | PDF
    A shake test was performed on the Large-Scale Dynamic Rig in the 40- by 80-Foot Wind Tunnel in support of the McDonnell Douglas Advanced Rotor Technology (MDART) Test Program. The shake test identifies the hub modes and the dynamic calibration matrix of the rotor balance. For hub mode identification, three configurations were tested: wind tunnel sc ...
  • Instrument Rating Practical Test Standards for Airplane Helicopter Airship
    Instrument Rating Practical Test Standards for Airplane, Helicopter, Airship
    United States. Federal Aviation Administration. Flight Standards Service
    1994-10-01 | PDF
    The Instrument Rating Practical Test Standards (PTS) book has been published by the Federal Aviation Administration (FAA) to establish the standards for the instrument rating practical test for airplanes, helicopters, and airships. FAA inspectors and designated pilot examiners shall conduct practical tests in compliance with these standards. Flight ...
  • Age 60 Study Part IV Experimental Evaluation of Pilot Performance
    Age 60 Study, Part IV: Experimental Evaluation of Pilot Performance
    Hyland, D.T. ;
    Kay, E.J.
    1994-10-01 | PDF
    This document is one of four products completed as a part of the Age 60 Rule Research Contract monitored by Pam Della Rocco, Civil Aerospace Medical Institute. This report was a deliverable from the research contract with Hilton Systems, Inc. on the FAA's mandatory retirement for pilots operating under Federal Aviation Regulations Part 121, the "Ag ...
  • Age 60 Study Part III Consolidated Database Experiments Final Report
    Age 60 Study, Part III: Consolidated Database Experiments Final Report
    Kay, E.J. ;
    Harris, R.M.
    1994-10-01 | PDF
    This document is one of four products completed as a part of the Age 60 Rule research contract monitored by Pam Della Rocco, Civil Aerospace Medical Institute, Contracting Officer's Technical Representative. This work was performed. This report was a primary deliverable from the research contract with Hilton Systems, Inc. on the FAA's mandatory ret ...
  • Age 60 Study Part II Airline Pilot Age and Performance a Review of the Scientific Literature
    Age 60 Study, Part II: Airline Pilot Age and Performance – a Review of the Scientific Literature
    Hyland, D.T. ;
    Kay, E.J.
    1994-10-01 | PDF
    This review of the literature establishes the scientific foundation for subsequent studies on the Age 60 Rule research conducted under a contract with Hilton Systems, Inc. The scientific literature relevant to the two separate scientific approaches required by the contract is reviewed. The document first provides a review of the "Age 60 Rule," as w ...
  • Age 60 Rule Research Part I Bibliographic Database
    Age 60 Rule Research, Part I: Bibliographic Database
    Hilton Systems, Inc.  ...
    1994-10-01 | PDF
    This document is one of four products completed as a part of the Age 60 Rule research contract monitored by Pam Della Rocco, Civil Aerospace Medical Institute. As part of their research contract with the FAA to study issues related to the "Age 60 Rule" for pilot mandatory retirement, Hilton Systems, Inc. in collaboration with Lehigh University facu ...
  • Use of Robotics in the Hydraulic Cement Mortars Testing Process
    Use of Robotics in the Hydraulic Cement Mortars Testing Process
    Chan, Saeg-Shiun ;
    Martin, Paul
    1994-09-30 | PDF
    This study is a feasibility study of applying robotics technology to the process of making cement cube specimens in preparation for stress testing and measurement. This study includes the planning and design of a robotic work cell system and the technological and economic advantages of an automated process over the manual process in material testin ...
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