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Showing 34721 - 34740 of 36747 results
  • Evaluation of an asphalttreated drainage blanket in a rigid pavement section final report
    Evaluation of an asphalt-treated drainage blanket in a rigid pavement section : final report.
    Paul, Harold R. ;
    Temple, William H.
    1978-01-01 | PDF
    This study was undertaken to develop a permeable yet stable, asphalt-treated, layered shoulder drainage system for a typical pavement section. Stability and permeability characteristics of several mixes were evaluated in the laboratory. Two installations were constructed in North Louisiana on Interstate 20 using the design criteria established by t ...
  • An analysis of industry responses to Federal regulations in safety requirements for new automobiles
    An analysis of industry responses to Federal regulations in safety requirements for new automobiles
    Bunch, Howard M. ;
    Kubacki, Michael
    1978-01-01 | PDF
    No Description
  • Effectiveness of predictive computer programs in the design of noise barriers a before and after approach part I the data acquisition system
    Effectiveness of predictive computer programs in the design of noise barriers : a before and after approach, part I, the data acquisition system.
    Haviland, J. K ;
    Noble, David F
    1978-01-01 | PDF
    A digital data acquisition system has been designed to meet the need for a long duration noise analysis capability. By sampling the DC outputs from sound level meters, it has been possible to make twenty-four hour or longer recordings, in contrast to the one-hour recordings possible on seven-inch analog tape reels. The system is made up of a digita ...
  • The shortterm effectiveness of written driver knowledge tests
    The short-term effectiveness of written driver knowledge tests.
    Stoke, Charles B
    1978 | PDF
    Highway Safety Program Standard 5, Driver Licensing, issued by the U. S. Department of Transportation requires the states to test applicants for a renewal of their operator's license on rules of the road at least once every four years. The cost of additional manpower to administer and score these tests, the expense of expanding existing facilities ...
  • Design of overlays based on pavement condition roughness and deflections part 1 tentative method for overlay design based on visual pavement distress
    Design of overlays based on pavement condition, roughness, and deflections : part 1 : tentative method for overlay design based on visual pavement distress.
    Vaswani, Nari K
    1978 | PDF
    Data collected on 111 interstate highway projects in Virginia were analyzed by multi-regression analysis and the rating coefficient for each type of distress determined. By this means, the total pavement distress and, hence, the maintenance rating of each pavement was obtained. The types of distress that were found to influence the maintenance rati ...
  • Mopeds bicycle or motorcycle
    Mopeds, bicycle or motorcycle?.
    Stoke, Charles B
    1978-01-01 | PDF
    The basic issue concerning mopeds is whether they should be considered as being bicycles - and, basically, be free of regulation, or as motorcycles - and thus be subject to all regulations applicable to motor vehicles. In an effort to resolve this issue, European accident data, Virginia crash data, the laws of the several states, the position taken ...
  • Evaluation of the Greenwood Drive fringe parking facility
    Evaluation of the Greenwood Drive fringe parking facility.
    Demetsky, Michael J ;
    Robertson, R. N
    1978-01-01 | PDF
    The application of a procedural method for planning express bus-fringe parking transit to determine why the Greenwood Drive service in Portsmouth, Virginia, failed to attract more riders than it did is described. The analysis of the study area revealed that many of the conditions which have been shown to prevail where the majority of successful exp ...
  • Highway safety attitudes of Virginians Results of the 1977 highway safety public opinion poll final Report
    Highway safety attitudes of Virginians : Results of the 1977 highway safety public opinion poll, final Report.
    Lynn, Cheryl
    1978-01-01 | PDF
    In October 1977, the Highway Safety Division of Virginia sponsored a statewide public opinion poll conducted by the Virginia Highway and Transportation Research Council. From the first through the twenty-second of October, approximately 1,700 randomly selected Virginia families were called and a member of each household over 16 years old was asked ...
  • Performance of protective coatings on structural plate pipe arches
    Performance of protective coatings on structural plate pipe arches.
    McKeel, Wallace T
    1978-01-01 | PDF
    The performance of bituminous coatings on structural plate pipe and pipe arches was evaluated in a limited field study supplemented by a survey of information from other agencies. Of the two available application techniques, immersion of individual plate elements in hot asphalt and spraying of a cold asphalt mastic on completed pipe sections, it ap ...
  • Alternatives to type II cement final report
    Alternatives to type II cement : final report.
    Ozyildirim, H. Celik
    1978 | PDF
    Concrete mixtures incorporating fly ash were investigated as possible alternatives to mixtures utilizing Type II cements. The mixture characteristics considered were strength, resistance to freezing and thawing and sulfates, heat of hydration, and volume stability. Two testing programs were undertaken. In the first program control mixtures were pre ...
  • 1975 National Truck Characteristic Report 1978
    1975 National Truck Characteristic Report (1978)
    United States. Federal Highway Administration
    1978-01-01 | PDF
    No Description
  • Evaluation of the statutory classification of threewheeled motorized invalid vehicles
    Evaluation of the statutory classification of three-wheeled, motorized invalid vehicles.
    Ball, Michael D
    1978 | PDF
    In response to an objection by interested individuals to the fact that Virginia law classifies three-wheeled, motorized invalid vehicles as motorcycles and subjects them to all registration, safety inspection, and operator requirements applicable to other vehicles in that category, the Highway Safety Division of Virginia requested that the Virginia ...
  • Evaluation and adaptation of the Dobrolubov and Romer method of microscopic examination of hardened concrete interim report methods and equipment used in preparing and examining fluorescent ultrathin sections
    Evaluation and adaptation of the Dobrolubov and Romer method of microscopic examination of hardened concrete : interim report : methods and equipment used in preparing and examining fluorescent ultrathin sections.
    Marshall, B. F ;
    Walker, H. N.,
    1978-01-01 | PDF
    This report explains the methods and equipment used to produce fluorescent, impregnated, polished, ultrathin sections of portland cement concrete. These sections are used in the study of the microstructure of concrete and are examined with a microscope which combines the features of a petrographic microscope with those of a microscope having incide ...
  • Opportunities for conserving energy in asphalt paving processes
    Opportunities for conserving energy in asphalt paving processes.
    Halstead, Woodrow J
    1978-01-01 | PDF
    This report discusses the potential for energy conservation in a number of activities related to the use of asphalt materials in highway construction. It is pointed out that not only should the total energy be considered, but also the category of the energy involved. The categories suggested are (1) embodied energy, (2) transport energy, (3) constr ...
  • An evaluation of the transferability of cross classification trip generation models
    An evaluation of the transferability of cross classification trip generation models.
    Caldwell, Lawrence C ;
    Demetsky, Michael J
    1978-01-01 | PDF
    This report describes the results of the application in Virginia of the trip generation procedures described in the Federal Highway Administration report entitled Trip Generation Analysis and published in 1975. Cross classification models, disaggregate regression models, aggregate regression models, and trip rates were developed for three cities. T ...
  • Seat belt and shoulder strap use among urban travelers results of the summer 1977 survey a report
    Seat belt and shoulder strap use among urban travelers : results of the summer 1977 survey : a report.
    Stoke, Charles B
    1978-01-01 | PDF
    During nine days in June 1977, four major metropolitan areas of the state of Virginia were surveyed to determine seat belt use by summer urban travelers. Observer-data collectors were stationed at selected signalized intersections. Motorists in the lane adjacent to the curb were shown a clipboard bearing the question, Are you wearing seat belts? Th ...
  • Criteria for preservation and adaptive use of historic highway structures
    Criteria for preservation and adaptive use of historic highway structures.
    Newlon, Howard
    1978-01-01 | PDF
    Metal truss bridges are uniquely indigenous products of American engineering and construction technology, and in recent years their historic significance has been increasingly recognized along with that of other early engineering structures. Some trusses that warrant inclusion on the National Register of Historic Places require renovation or replac ...
  • Tenant mobility and adjustment under the 1970 uniform relocation act
    Tenant mobility and adjustment under the 1970 uniform relocation act.
    Allen, Gary R ;
    Perfater, Michael A
    1978-01-01 | PDF
    On the basis of the results of a previous study, it was recommended that changes in either the provisions of the 1970 Uniform Relocation Act or the manner in which it was being implemented should be made in that portion of the Act dealing with owners rather than in the portion relating to tenants. However, that recommendation overlooked the fact th ...
  • Development of a master file of essential highway safety planning and evaluation data
    Development of a master file of essential highway safety planning and evaluation data.
    Simpson, Clinton H ;
    Haggerty, Michael P.,
    1978-01-01 | PDF
    The National Highway Traffic Safety Administration requires each state to file an Annual Highway Safety Work Program as a prerequisite for obtaining federal section 402 safety monies. However, the work program serves as more than a mechanism for obtaining funds; it induces planning, programming, and budgeting of highway safety projects. The Commonw ...
  • Evaluation of the performance of portable precast concrete traffic barriers
    Evaluation of the performance of portable precast concrete traffic barriers.
    Lisle, Frank N ;
    Hargroves, Bradley T.
    1978 | PDF
    The portable precast concrete traffic barrier is used to separate high speed vehicular traffic and construction activities. However, since there was a lack of information on the barrier's performance in a construction zone environment, officials of the Virginia Department of Highways and Transportation requested that the Virginia Highway and Transp ...
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