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Showing 35361 - 35380 of 36747 results
  • Evaluation of a drainage blanket in an asphalt shoulder section interim report
    Evaluation of a drainage blanket in an asphalt shoulder section : interim report.
    Myers, John C. ;
    Temple, William H.
    1974-02-01 | PDF
    The aim of this research project was to develop a permeable, yet stable, hot mix asphaltic drainage system for a typical pavement section. Development of such systems should provide the Department with effective means of draining water from highway bases and subbases and thus prolong the lives of those highways.Previous research indicates that a mu ...
  • Analysis of Characteristic Roughness Patterns in Pavements and the Relationship Between Roughness and Pavement Distress
    Analysis of Characteristic Roughness Patterns in Pavements and the Relationship Between Roughness and Pavement Distress
    Williamson, Hugh J. ;
    Hudson, W. Ronald
    1974-02-01 | PDF
    A pilot study of certain pavement distress problems is discussed in this report. Road roughness measurements made with the Surface Dynamics Road Profilometer (SDP) and pavement condition survey data have been analyzed by statistical methods to demonstrate approaches to these problems, and, within the scope of a pilot study, to obtain results. The p ...
  • An investigation of the effectiveness of existing bridge design methodology in providing adequate structural resistance to seismic disturbances Phase II Analytical investigations of the seismic response of long multiplespan highway bridges
    An investigation of the effectiveness of existing bridge design methodology in providing adequate structural resistance to seismic disturbances. Phase II: Analytical investigations of the seismic response of long multiple-span highway bridges
    Tseng, W. ;
    Penzien, J.
    1974-01-01 | PDF
    No Description
  • Water reuse at highway rest stations
    Water reuse at highway rest stations.
    Ritz, Michael A
    1974-01-01 | PDF
    A laboratory biological wastewater treatment system was operated to investigate the effects of wastewater effluent recycle on the treatment system and the effluent water quality. This concept is being investigated for use at highway rest areas in the Commonwealth of Virginia where it is desirable to utilize biologically treated and filtered effluen ...
  • Utilization of steel in industrialized highway bridge systems
    Utilization of steel in industrialized highway bridge systems.
    Sprinkel, Michael M
    1974-01-01 | PDF
    The space frame concept presented in this report represents the results of an effort to minimize on-site construction time while utilizing steel to provide a high quality but competitive type of bridge structure. A necessary part of the effort was the development of a concept which minimizes material and labor requirements but allows for the system ...
  • Legal aspects of the utilization of highway airspace
    Legal aspects of the utilization of highway airspace.
    Daniel, Thomas C
    1974-01-01 | PDF
    The report provides a general exposition of the legal implications of the utilization of the airspace above the highways of the Commonwealth, examines Virginia's legislation in this area, and suggests improvements in the form of the Model Airspace Act drawn up by an American Bar Association subcommittee. The statutes of two other states are also pr ...
  • Compensation for noise damaged property
    Compensation for noise damaged property.
    Merrill, Dennis G
    1974-01-01 | PDF
    The U.S. Constitution and the constitution of every state, except North Carolina, requires "just compensation" to be made for property taken by eminent domain. Courts both in Virginia and elsewhere have taken a very narrow view of this requirement where there is only indirect damage to property. Reformers, unhappy with the failure of government to ...
  • Drinkingdriving attitudes a comparison of the first two household surveys of the Fairfax Alcohol Safety Action Project
    Drinking-driving attitudes : a comparison of the first two household surveys of the Fairfax Alcohol Safety Action Project.
    Jordan, Robert F
    1974-01-01 | PDF
    This report provides an analysis of the community response to the public information countermeasure of the Fairfax Alcohol Safety Action Project, one thrust of a national effort to get the drunken driver off the highway. A series of in-depth household surveys form the primary tool for the analysis. Among the variables measured were: knowledge of al ...
  • Response of plain concrete to a state of biaxial fatigue loading equipment and technique
    Response of plain concrete to a state of biaxial fatigue loading : equipment and technique.
    Smith, Charles E
    1974-01-01 | PDF
    The fatigue strength of concrete is an important factor in the design of certain structures, particularly those associated with transportation functions. A considerable body of research has been developed on fatigue using specimens subjected to uniaxial loadings. The purpose of this project was to study concrete subjected to a state of biaxial fati ...
  • Culvert outlet protection design computer program documentation
    Culvert outlet protection design : computer program documentation
    Schilling, Michael G.
    1974-01-01 | PDF
    No Description
  • Effectiveness of trees and vegetation in reducing highway noise a literature review
    Effectiveness of trees and vegetation in reducing highway noise : a literature review.
    Kerby, E. G
    1974-01-01 | PDF
    This report is a literature review of the research which has been conducted on the noise attenuating values of trees and associated vegetation, and related environmental effects. A chronology of this research, including the latest research findings, are presented along with the necessary planting criteria needed to achieve tree belt noise reduction ...
  • An industrialized construction approach to concrete superstructures for bridges
    An industrialized construction approach to concrete superstructures for bridges.
    Brown, H. E
    1974-01-01 | PDF
    The objective of this study was to develop drawings for a specific site or sites that incorporated the best concepts of industrialized bridge superstructure construction, that is, great emphasis was placed upon the use of modular design and assembly line techniques in the prefabrication and assembly of the superstructure. The final design featured ...
  • Effects of rotation on the nighttime brightness of overhead highway signs utilizing high intensity sheeting
    Effects of rotation on the nighttime brightness of overhead highway signs utilizing high intensity sheeting.
    Benson, James A
    1974-01-01 | PDF
    As an initial step in the establishment of guidelines for the use of high intensity sheeting on overhead signs, a pilot study was made to investigate the effect of rotation on the average nighttime brightness of signs utilizing this material. Rotation angles were chosen on the theory that the brightness will be maximum when the entrance angle is mi ...
  • Design of bituminous surface mixes with high skid resistance
    Design of bituminous surface mixes with high skid resistance.
    Johnson, H. W
    1974-01-01 | PDF
    The Virginia Highway Research Council has proposed a study of the skid resistance of bituminous surfaces incorporating relatively hard and expensive aggregates. The hardness of the aggregates to be used aluminum oxide (Exolon) and calcined kaolin -- is expected to contribute appreciably to the lasting skid resistance of the surfaces. Since these ha ...
  • Test procedures and data input techniques for skid testing
    Test procedures and data input techniques for skid testing.
    Runkle, Stephen N
    1974-01-01 | PDF
    The purpose of this report is to describe the system for obtaining and handling skid data, including skid testing procedures and data input procedures. While all testing devices used in Virginia are covered (other than the British portable tester), the emphasis is on those procedures to be followed in operating the new skid trailer being obtained b ...
  • Chloride Analysis of Concrete by IonSpecific Potentiometry Its Implementation in Virginia
    Chloride Analysis of Concrete by Ion-Specific Potentiometry: Its Implementation in Virginia
    O'Neal, W. G ;
    Clemeña, Gerardo G.
    1974-01-01 | PDF
    In response to an urgent request from the Materials Division, a literature search was conducted to find a suitable analytical method for the determination of chloride in hardened concrete. It was found that an ion-specific potentiometric method employing a chloride-extraction procedure improved by H. A. Berman of the Federal Highway Administration ...
  • Seat belt and shoulder strap use among urban travelers interim report
    Seat belt and shoulder strap use among urban travelers : interim report.
    Stoke, Charles B
    1974-01-01 | PDF
    Because of the need to establish a data baseline for belt usage without mandatory legislation, a survey of selected areas of the state of Virginia was conducted during January 1974 to determine lap and shoulder belt use by urban travelers. Observer-data collectors were positioned at preselected signalized intersections. Over a nine-day period, data ...
  • Reflectorized license plates do they reduce nightime rearend collisions
    Reflectorized license plates : do they reduce nightime rear-end collisions?.
    Stoke, Charles B
    1974-01-01 | PDF
    The Commonwealth of Virginia randomly distributed 100,000 sets of experimental reflectorized and 100,000 sets of control nonreflective 1971 license plates, Each Division of Motor Vehicles distribution point in the state received and sold a pro rata number of each type. Plates were distributed evenly throughout each day of the distribution period. A ...
  • Fairfax Alcohol Safety Action Project second year evaluation summary a report prepared by the Virginia Highway and Transportation Research Council under the sponsorship of the Highway Safety Division of Virginia
    Fairfax Alcohol Safety Action Project second year evaluation summary : a report prepared by the Virginia Highway and Transportation Research Council under the sponsorship of the Highway Safety Division of Virginia.
    Ferguson, Wayne S ;
    Smith, Thomas J
    1974-01-01 | PDF
    The Fairfax Alcohol Safety Action Project (ASAP) was begun in January 1972 as one of thirty-five federally funded demonstration projects designed to implement and evaluate a comprehensive community alcohol countermeasures program. The Fairfax ASAP was approved for three years and funded with $2.1 million in an attempt to confront and ameliorate the ...
  • An investigation of streaking on highway traffic signs
    An investigation of streaking on highway traffic signs.
    Robertson, R. N
    1974-01-01 | PDF
    During a night inspection, dark streaks were observed on the faces of many reflectorized highway signs. Although the streaks were not visible during daylight, they substantially reduced the reflectivity of the signs at night. This study was initiated to determine the source of the streaks and to define remedial measures. An investigation revealed t ...
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