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Showing 27141 - 27160 of 35628 results
  • Experimental Investigation of the Dynamic Response of Two Bridges Before and After Retrofitting with Elastomeric Bearings
    Experimental Investigation of the Dynamic Response of Two Bridges Before and After Retrofitting with Elastomeric Bearings
    Wendichansky, D. A. ;
    Chen, S. S.
    1998-10-01 | PDF
    Two bridges were subjected to transverse quick-release testing, which simulated transverse seismic loading. This report presents the results of a study of these two bridges before and after replacement of the original steel bearings: one with ordinary neo. See also PB97-140735. Prepared in cooperation with State Univ. of New York at Buffalo. Dept. ...
  • Bearing Capacity Analysis of Pavements
    Bearing Capacity Analysis of Pavements
    Hopkins, Tommy C.
    1998-10-01 | PDF
    A multilayered, mathematical model for analyzing the ultimate bearing capacity of soil subgrades and asphalt pavements is presented. Theoretical considerations and mathematical derivations of limit equilibrium equations, based on plasticity principles. Sponsored by Kentucky Transportation Cabinet, Frankfort and Federal Highway Administration, Frank ...
  • A Feasibility Assessment of TruckBarge Intermodal Freight Transportation
    A Feasibility Assessment of Truck-Barge Intermodal Freight Transportation
    Trusty, Kristen ;
    Malstrom, Eric
    1998-10-01 | PDF
    This report examines the feasibility of truck-barge intermodal freight transportation, along with the feasibility of rail-barge and single modal barge transportation. The report includes the enhancement of an existing software package that determines the cheapest mode combination between an origin and destination. The enhanced software calculates t ...
  • North Dakota Grain and Oilseed Transportation Statistics 199798
    North Dakota Grain and Oilseed Transportation Statistics 1997–98
    Domine, Matt ;
    Benson, Douglas
    1998-10-01 | PDF
    This report represents a continuation of analysis concerned with the patterns and methods of distributing grains and oilseeds from North Dakota.
  • Mitigation of AlkaliSilica Reactivity in New Mexico
    Mitigation of Alkali-Silica Reactivity in New Mexico
    McKeen, R. Gordon ;
    Lenke, Lary R.
    1998-10-01 | PDF
    The research experiments reported were conducted at the Materials Research Center, ATR Institute, University of New Mexico, at the request of the Research Bureau, New Mexico State Highway and Transportation Department (NMSHTD). The purpose was to determine the amount of additives required for mitigation of alkali-silica reactivity (ASR) based on sc ...
  • Asphalt Overlay Design Methods for Rigid Pavements Considering Rutting Reflection Cracking and Fatigue Cracking
    Asphalt Overlay Design Methods for Rigid Pavements Considering Rutting, Reflection Cracking, and Fatigue Cracking
    Cho, Yoon-Ho ;
    Liu, Chiu
    1998-10-01 | PDF
    A complex web of government regulations in the United States establishes maximum weights for vehicles on public roads. The primary purpose is to ensure compatibility of roadway design and operations with vehicle weight and dimensions. Of particular concern are the roadway impacts of heavy trucks, which far exceed those of passenger cars. As a rule ...
  • HeatStraightening Repairs of Damaged Steel Bridges A Technical Guide and Manual of Practice
    Heat-Straightening Repairs of Damaged Steel Bridges: A Technical Guide and Manual of Practice
    Avent, Richard ;
    Mukai, David
    1998-10-01 | PDF
    The purpose of this manual is to provide comprehensive guidelines on heat straightening repair techniques for damaged steel bridge members. The manual is designed to be used in conjunction with a multimedia instructional computer program and video produced as part of this project. The manual is divided into three parts. Part I provides a background ...
  • Adapting Road Safety Audits to Local Rural Roads
    Adapting Road Safety Audits to Local Rural Roads
    Tate, Joseph III ;
    Wilson, Eugene M.
    1998-10-01 | PDF
    Many rural governments do not have an effective safety improvement program for their roads, yet crash rates are significantly higher on rural roads than on urban, state, and federal roads. Smaller agencies seldom have the financial resources or expertise to provide comprehensive roadway safety improvement programs and usually rely on input from the ...
  • European Downstream Oil Industry Safety Performance Statistical Summary of Reported Incidents 1997 and Overview 1993 to 1997
    European Downstream Oil Industry Safety Performance: Statistical Summary of Reported Incidents, 1997 and Overview 1993 to 1997
    Martin, D. E.
    1998-10-01 | PDF
    This report is the fourth by CONCAWE reviewing the safety performance of the downstream oil industry in Western Europe. It includes the results of 27 companies which together represent over 90% of the oil refining capacity in the region. Of the 27 companies, 18 gave data for both contractors and employees. it is therefore a representative sample of ...
  • Technical noise supplement TeNS a technical supplement to the Traffic Noise Analysis Protocol
    Technical noise supplement : TeNS : a technical supplement to the Traffic Noise Analysis Protocol.
    Hendriks, Rudy
    1998-10-01 | PDF
    The purpose of this Technical Noise Supplement (TeNS) is to provide technical backgroundinformation on transportation-related noise in general and highway traffic noise inparticular. It is designed to elaborate on technical concepts and procedures referred to inthe Caltrans Traffic Noise Analysis Protocol (the Protocol). The contents of this Supple ...
  • Traffic noise analysis protocol for new highway construction and reconstruction projects
    Traffic noise analysis protocol for new highway construction and reconstruction projects.
    Jones, Keit
    1998-10-01 | PDF
    The Traffic Noise Analysis Protocol (hereafter referred to as the Protocol)contains Caltrans noise policies, which fulfill the highway noise analysis andabatement/mitigation requirements stemming from the following State andFederal environmental statutes:· California Environmental Quality Act (CEQA)· National Environmental Policy Act (NEPA)· Title ...
  • Road Construction Safety Audit for Interstate Reconstruction Volume 1
    Road Construction Safety Audit for Interstate Reconstruction. Volume 1.
    Bowler, C. P. ;
    Wilson, E. M.
    1998-10-01 | PDF
    Traffic control alternatives associated with reconstruction projects on a rural interstate have been investigated in this research. Slab replacement projects, milling/resurfacing projects, and traffic controls in the vicinity of interstate ramps were analyzed.
  • Evaluation of the Cape Seal Process as a Pavement Rehabilitation Alternative
    Evaluation of the Cape Seal Process as a Pavement Rehabilitation Alternative
    Solaimanian, Mansour ;
    Kennedy, Thomas W.
    1998-10-01 | PDF
    A 1-year research project was conducted to evaluate the Cape seal process as a pavement rehabilitation technique. During the course of this research project, most of the Cape seal projects that have been constructed within the state were visited as part of the evaluation. Projects documented during the visits included both successes and failures. O ...
  • Diurnal Evapotranspiration Estimates in the Walnut River Watershed
    Diurnal Evapotranspiration Estimates in the Walnut River Watershed
    Song, J. ;
    Wesely, M. L.
    1998-10-01 | PDF
    Evapotranspiration is an essential component of the surface hydrological balance, but obtaining accurate estimates of the water vapor flux over large terrestrial areas can be difficult because of the substantial temporal and spatial variability in surface moisture conditions that can occur. This variability is often very . large in the Great Plains ...
  • Handbook of Selected Congestion Mitigation Techniques in the United States
    Handbook of Selected Congestion Mitigation Techniques in the United States
    Crawford, Jason A. ;
    Frawley, William E.
    1998-10-01 | PDF
    This handbook is intended as a reference manual for transportation planners and engineers working for TxDOT districts and Texas MPOs. Itis hoped these practitioners will be able to use the book in developing ideas with which they can address congestion problems in their corresponding metropolitan areas. Thus, the research team designed and wrote th ...
  • Training Course in Geotechnical and Foundation Engineering NHI Course No 13235 Module 5 Rock Slopes Reference Manual
    Training Course in Geotechnical and Foundation Engineering. NHI Course No. 13235, Module 5. Rock Slopes. Reference Manual
    Wyllie, Duncan ;
    Mah, Chris W.
    1998-10-01 | PDF
    This manual describes procedures for the design, excavation and stabilization of rock cuts, with particular application to highway project. The main topics covered are geotechnical data collection, design methods and construction procedures. The geotechnical data includes structural geology and the use of stereonets, the shear and compressive stren ...
  • Next Generation Cargo Movement System Analysis Volume 2 Transportation Research Agenda
    Next Generation Cargo Movement System Analysis, Volume 2. Transportation Research Agenda
    Evers, Kenneth ;
    Kuper, Samuel R.
    1998-10-01 | PDF
    This task is second of two research phases conducted to determine future Air Force transportation requirements with the purpose of identifying potential future initiatives. This second phase of the effort analyzed the trends identified in the first phase and selected those critical needs and deficiencies that could be addressed through research wit ...
  • Road Construction Safety Audit for Interstate Reconstruction Volume 2
    Road Construction Safety Audit for Interstate Reconstruction. Volume 2.
    Bowler, C. P. ;
    Wilson, E. M.
    1998-10-01 | PDF
    Traffic control alternatives associated with reconstruction projects on a rural interstate have been investigated in this research. Slab replacement projects, milling/resurfacing projects, and traffic controls in the vicinity of interstate ramps were analyzed.
  • Exploring rearend roadway crashes from the drivers perspective
    Exploring rear-end roadway crashes from the driver's perspective
    Kostyniuk, Lina P. ;
    Eby, David W.
    1998-10-01 | PDF
    This pilot study examined rear-end crashes from the driver's perspective to identify self-reported reasons and causes of such crashes, to identify commonalities in the self-reported causes and locations and circumstances of these crashes, and to explore the merit of using this approach to develop countermeasures to the rear-end crash. Focus groups ...
  • CPI Detailed Report Data for October 1998
    CPI Detailed Report: Data for October 1998
    Wilson, T. ;
    Gabor, M.
    1998-10-01 | PDF
    The Consumer Price Index for All Urban Consumers (CPI-U) increased 0.2 percent in October, before seasonal adjustment, to a level of 164.0 (1982-84=100). For the 12-month period ended in October, the CPI-U increased 1.5 percent. The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) rose 0.2 percent in October, prior to season ...
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