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Showing 32861 - 32880 of 36747 results
  • Optimization of soil stabilization with class C fly ash
    Optimization of soil stabilization with class C fly ash.
    Pitt, J.M. ;
    Demirel, T.
    1987-01-01 | PDF
    Previous Iowa DOT sponsored research has shown that some ClassC fly ashes are cementitious (because calcium is combined as calciumaluminates) while other Class C ashes containing similar amounts ofelemental calcium are not (1). Fly ashes from modern power plants inIowa contain significant amounts of calcium in their glassy phases,regardless of thei ...
  • Comparative evaluation of concrete sealers and multiple layer polymer concrete overlays Interim report no 1
    Comparative evaluation of concrete sealers and multiple layer polymer concrete overlays. Interim report no. 1.
    Sprinkel, Michael M
    1987-01-01 | PDF
    The report presents comparisons of initial evaluations of several concrete sealers and multiple layer polymer concrete overlays. The sealers evaluated included a solvent-dlspersed epoxy, a water-dlspersed epoxy, a silane, and a high molecular weight methacrylate. The multiple layer polymer overlays evaluated were constructed with two polyester resi ...
  • CRASH III model improvements vehicle categorization for stiffness parameters
    CRASH III model improvements : vehicle categorization for stiffness parameters
    Willke, Donald T. ;
    Monk, Michael W.
    1987-01-01 | PDF
    No Description
  • American Red Cross occupant protection education program
    American Red Cross occupant protection education program
    Feeley, Donna M.
    1987-01-01 | PDF
    No Description
  • Field evaluation of highway safety hardware maintenance guidelines
    Field evaluation of highway safety hardware maintenance guidelines.
    Cottrell, Benjamin H
    1987-01-01 | PDF
    The objective of this study was to evaluate with field tests, a procedure developed for the Federal Highway Administration for determining frequencies at which highway safety hardware needs to be inspected and repaired. The frequencies arrived at were based on the accident history of the safety hardware and the level of service to be provided, whic ...
  • Index to FAA Office of Aviation Medicine Reports 1961 through 1986
    Index to FAA Office of Aviation Medicine Reports: 1961 through 1986
    Dille, J. Robert ;
    Grimm, Marcia H.
    1987-01-01 | PDF
    An index to Office of Aviation Medicine Reports (1964-1982) and Civil Aeromedical Research Institute Reports (1961-1963) is presented as a reference for those engaged in aviation medicine and related activities. It provides a listing of all FAA aviation medicine reports published from 1961 through 1982 by year, number, author, title, and subject.
  • Microcomputer software for storm drain hydraulic gradeline computation
    Microcomputer software for storm drain hydraulic gradeline computation.
    Yu, Shaw L ;
    Li, James Y
    1987-01-01 | PDF
    A microcomputer software module was developed for the computation of hydraulic gradeline in storm sewer systems. The computer module has been attached to the program '"HYDRA", which is being adopted by the FHWA organized Pooled Fund Study. on Integrated Drainage System as the program for storm drain design and analysis. The module-developed in this ...
  • The use of hydrated lime as an antistripping additive final report
    The use of hydrated lime as an antistripping additive : final report.
    Maupin, G. W
    1987-01-01 | PDF
    The purpose of this investigation was to evaluate the performance of six test sections of asphalt concrete that contained no additive, hydrated lime, and a chemical additive. Tests were also conducted on pavement samples taken periodically to determine whether hydrated lime slows the hardening rate of asphalt cement as has been reported by others. ...
  • Installation report evaluation of asphalt additives
    Installation report : evaluation of asphalt additives.
    Maupin, G. W
    1987-01-01 | PDF
    Five asphalt additives that are supposed to improve the stability and flexibility characteristics of asphalt concrete were installed in pavement test sections on Route 58 in Halifax County. Polymers, latex rubbers, and a diatomaceous deposit were used, and a control section was included that contained hydrated llme. The preliminary results of vario ...
  • Creating an innovative and productive environment for the 21st century report of the Virginia Department of Transportations response to Senate Joint Resolution No 7 to the governor and the General Assembly of Virginia
    Creating an innovative and productive environment for the 21st century : report of the Virginia Department of Transportation's response to Senate Joint Resolution No. 7 to the governor and the General Assembly of Virginia.
    Virginia. Dept. of Transportation
    1987-01-01 | PDF
    Senate Joint Resolution No. 7 (SJR-7) directs the Department todevelop a plan for reducing expenditures for administration and maintenanceby 5% as compared to FY 1987-88 appropriations and to continuethese reductions into the future. The plan is to achieve these purposesthrough improved efficiency and productivity in Department operations.In additi ...
  • Effects of borrow site preparation and fertilization on natural revegetation
    Effects of borrow site preparation and fertilization on natural revegetation
    Densmore, Roseann
    1987-01-01 | PDF
    This study report describes the effects of experimental fertilization and surface conditioning of a gravel borrow site which lacked a topsoil covering. In summary, borrow site revegetation by fireweed may be greatly enhanced by scarifying and fertilization, while woody plant development and growth is enhanced by scarifying and seeding. Project desi ...
  • Effects of Rail Contract Rates on North Dakota and Minnesota Country Grain Elevators
    Effects of Rail Contract Rates on North Dakota and Minnesota Country Grain Elevators
    Zink, Daniel L ;
    Griffin, Gene C.
    1987-01-01 | PDF
    This paper is an expanded version of a report submitted to the Office of Transportation Analysis, Interstate Commerce Commission regarding the competitive impacts of rail rate contracts on country grain elevators. The project was conducted concurrent with similar studies in several other grain producing states.
  • Commuter Transit Service A Financial Performance Analysis
    Commuter Transit Service: A Financial Performance Analysis
    Kaemmerle, Kenneth C.
    1987-01-01 | PDF
    This report details an analysis of first quarter FY86 operating cost and revenue for the Metropolitan Transit Authority (METRO) of Harris County (Houston, Texas). The METRO nine factor cost allocation model is used to allocate cost to individual routes, by schedules, and by weekday~ peak and off-peak time periods. Revenues are allocated to individu ...
  • Traffic Accident Facts and Statistics 1987
    Traffic Accident Facts and Statistics, 1987
    Pennsylvania. Dept. of Transportation
    1987-01-01 | PDF
    The 1987 TRAFFIC ACCIDENT FACTS AND STATISTICS is a report published by the Center For Highway Safety of the Pennsylvania Department of Transportation. This publication is a statistical review of motor vehicle traffic accidents in the Commonwealth of Pennsylvania for the calendar year 1987. The figures are compiled from the traffic accident reports ...
  • HPMS Analytical Process Sensitivity Analysis Part 1 1987
    HPMS Analytical Process: Sensitivity Analysis Part 1 (1987)
    United States. Federal Highway Administration
    1987-01-01 | PDF
    No Description
  • Land Use and Innovative Funding Impacts in a Permanent BuswayParkandRide Transit System Preliminary Assessment of Land Use Impacts in Houstons North I45N Transitway Corridor
    Land Use and Innovative Funding Impacts in a Permanent Busway/Park-and-Ride Transit System: Preliminary Assessment of Land Use Impacts in Houston’s North (I-45N) Transitway Corridor
    Peterson, Richard L. ;
    Stokes, Robert W.
    1987-01-01 | PDF
    This report is the fourth research document prepared in the study of land use and transportation impacts under Project 9-10-85-1085 (between the State and Barry Goodman Associates) and Project 2-10-85-1086 (between the State and the Texas Transportation Institute). The details of the data collection and analysis conform to the basic procedures used ...
  • Experimental Products and Equipment for Highway Construction and Maintenance 1987
    Experimental Products and Equipment for Highway Construction and Maintenance [1987]
    Smith, Mitchell D.
    1987-01-01 | PDF
    This is a listing pertaining to the status of the research evaluation of products and equipment which may possibly be used in highway construction or maintenance by the Oklahoma Department of Transportation. Products and equipment are continually being evaluated and implemented into use by the Department. The status of their evaluation therefore is ...
  • Comparative Assessment of Computer Programs for Traffic Signal Planning Design and Operations Volume I Study Approach Analysis and Recommendations
    Comparative Assessment of Computer Programs for Traffic Signal Planning, Design, and Operations, Volume I: Study Approach, Analysis, and Recommendations
    Radwan, Essam ;
    Sadegh, Ahmad
    1986-12-12 | PDF
    The main goal of this study was to comparatively assess a group of selected computer programs for traffic signal planning, design, and operations. A comprehensive inventory was conducted and a detailed list of the currently available computer software was developed. A short description of individual software was provided, and a comparative processo ...
  • Development of laboratory oxidative aging procedures for asphalt cements and asphalt mixtures
    Development of laboratory oxidative aging procedures for asphalt cements and asphalt mixtures.
    Kim, Oh-Kee ;
    Bell, Chris A.
    1986-12-01 | PDF
    An evaluation of an oxidative aging procedure for asphalt materials is described. Test results and the effectiveness of the aging device used are presented. The study was performed by Oregon State University and the Oregon Department of Transportation. This study involved laboratory tests on field core samples as well as laboratory mixture samples ...
  • Private Sector Involvement in Urban Transportation Case Studies
    Private Sector Involvement in Urban Transportation [Case Studies]
    Rice Center
    1986-12-01 | PDF
    The urban transportation planning process is undergoing critical transformations. Of particular interest is the emergence of private sector involvement in the planning, management, financing, construction of transportation systems and provision of transit services. The objectives of this study, financed by the Federal Highway Administration (FHWA) ...
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