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Showing 35201 - 35220 of 36747 results
  • The design of temporary sediment controls for soil losses from highway cut slopes
    The design of temporary sediment controls for soil losses from highway cut slopes.
    Poche´, David J
    1975-01-01 | PDF
    No Description
  • Poor visibility a common cause of wrongway driving
    Poor visibility : a common cause of wrong-way driving.
    Vaswani, N. K
    1975-01-01 | PDF
    On-site investigations were made of interchanges in Virginia, some of which had been the site of wrong-way entries and some of which had not, and of intersections that had experienced wrong-way incidents. From the observations made on-site it has been concluded that poor visibility at intersections due to road geometrics and incomplete or improper ...
  • Freeway design and control strategies as affected by trucks and traffic regulations Vol I Technical report
    Freeway design and control strategies as affected by trucks and traffic regulations : Vol. I; Technical report
    St. John, A. D.
    1975-01-01 | PDF
    No Description
  • Verification of MICNOISE computer program for the prediction of highway noise part II additional verification of MICNOISE version 5
    Verification of MICNOISE computer program for the prediction of highway noise : part II : additional verification of MICNOISE version 5.
    Haviland, J. K ;
    Noble, David F
    1975-01-01 | PDF
    This is a continuation of an earlier report in which the MICNOISE computer program for the prediction of highway noise was evaluated. The outputs of the MICNOISE program are the L50 and LI0 sound pressure levels, i.e., those levels experienced 50% and 10% of the time. In the earlier report, it was noted that there were difficulties when truck volum ...
  • Methodology for utilizing survey skid data
    Methodology for utilizing survey skid data.
    Runkle, Stephen N
    1975-01-01 | PDF
    This report sets forth procedures for utilizing survey skid data with consideration given to testing variabilities and relationships between the three testing devices used in Virginia namely, the Virginia Department of Highways & Transportation's trailer, the Virginia Highway & Transportation Research Council's trailer, and the Council's Stopping d ...
  • Literature review simple test method for possible use in predicting the fatigue of asphaltic concrete
    Literature review : simple test method for possible use in predicting the fatigue of asphaltic concrete.
    Freeman, J. R ;
    Maupin, G. W
    1975-01-01 | PDF
    It has been recognized for many years that fatigue is one of many mechanisms by which asphaltic concrete pavements fail. Experience and empirical design procedures such as those developed by Marshall and Hveem have enabled engineers to design-mixtures against most common premature failure mechanisms such as rutting and bleeding, but due to the comp ...
  • Efficacy of red and yellow turn arrows in traffic signals final report
    Efficacy of red and yellow turn arrows in traffic signals : final report
    Flanakin, H. A. Mike ;
    Kraft, Merwyn A.
    1975-01-01 | PDF
    No Description
  • Further studies of a trussedweb girder composed of reinforced plastics
    Further studies of a trussed-web girder composed of reinforced plastics.
    McCormick, Fred C ;
    Alper, Husamettin
    1975-01-01 | PDF
    Three single section and one trisection girder, s eight feet long were fabricated and load tested to determine the deflection, strain, and creep characteristics of the members. One specimen fabricated with stranded elements composed of Kevlar 49 instead of glass exhibited improved stiffness properties. The maximum load applied to a specimen was 600 ...
  • Albemarle County road orders
    Albemarle County road orders.
    Pawlett, Nathaniel Mason.
    1975-01-01 | PDF
    No Description
  • An experience survey on the use of permanent steel bridge deck forms
    An experience survey on the use of permanent steel bridge deck forms.
    Hilton, Marvin H
    1975 | PDF
    Permanent forms for bridge decks have become increasingly more attractive to the construction industry in recent years. Many highway officials however, have reservations concerning the use of permanent steel forms. These reservations are related to the effect the forms might have on the durability of the concrete decks and to the possibility of fut ...
  • The effects of a 12hour shift in the wakesleep cycle on physiological and biochemical responses and on multiple task performance
    The effects of a 12-hour shift in the wake-sleep cycle on physiological and biochemical responses and on multiple task performance.
    Higgins, E.A. ;
    Chiles, W.D.
    1975-01-01 | PDF
    Fifteen male paid volunteers (ages 20 to 28) were studied in three groups of five each. The first 4 days of the experiment they slept nights (2230 to 0600( and worked days. On the fifth night, they slept only 3 hours (2100 to 2400) before starting a 10-day period in which the wake-sleep cycle was altered by 12 hours. According to the subjective fat ...
  • A survey and photographic inventory of metal truss bridges in Virginia 18651932 I an examination of the development of the truss form including an annotated list of nineteenth and twentieth century bridge companies
    A survey and photographic inventory of metal truss bridges in Virginia, 1865-1932 : I : an examination of the development of the truss form including an annotated list of nineteenth and twentieth century bridge companies.
    Deibler, Dan Grove
    1975-01-01 | PDF
    The romance and myths long associated with the covered wooden bridges that once populated the rural roads of the American landscape have produced a multitude of popular literary works on their form, purpose and ultimately demise. Consequently, covered bridges have become something of a symbol of a past era. Similar speculation on the origins and de ...
  • Express busfringe parking planning methodology
    Express bus-fringe parking planning methodology.
    Kavak, Fuat C ;
    Demetsky, Michael J
    1975-01-01 | PDF
    The conception, calibration, and evaluation of alternative disaggregate behavioral models of the express bus-fringe parking travel choice situation are described. Survey data collected for the Parham Express Service in Richmond, Virginia, are used to define the service market area and to construct binary and n-dimensional choice models. The perform ...
  • The route of the Three Notchd Road a preliminary report
    The route of the Three Notch'd Road : a preliminary report.
    Pawlett, Nathaniel Mason ;
    Newlon, Howard
    1975-01-01 | PDF
    Of the many colonial roads constructed during the eighteenth century as settlement moved across Piedmont and Southside Virginia, a few have remained virtually intact and in service as state roads over most of their length. One of the most significant of these is the Three Notch'd or Three Chopt Road, which ran from Richmond to the Valley as a main ...
  • Development of guidelines for accommodating safe and desirable pedestrian activity within the highway environment
    Development of guidelines for accommodating safe and desirable pedestrian activity within the highway environment.
    LaBaugh, William C ;
    Demetsky, Michael J
    1975-01-01 | PDF
    This study develops general guidelines for planning and evaluating suburban pedestrian systems. Pedestrian characteristics and capabilities which affect walking demand are summarized using the results of previous research. Reported research results are also used to examine the effectiveness of the physical walking system by analyzing various compon ...
  • An analysis of ultimate performance measures to determine total project impact of the Fairfax Alcohol Safety Action Project progress report 3 January 1 1974December 31 1974
    An analysis of ultimate performance measures to determine total project impact of the Fairfax Alcohol Safety Action Project : progress report #3, January 1, 1974-December 31, 1974.
    Spencer, Jeffrey A ;
    Ferguson, Wayne S
    1975-01-01 | PDF
    The Fairfax ASAP project, one of 35 federally funded alcohol countermeasure projects designed to attack the problem of drunken drivers on the highways, was implemented at the community level in January 1972. This report summarizes the results of data obtained to measure project impact on selected ultimate performance indicators at the end of the th ...
  • An assessment of Virginias law requiring the forfeiture of any vehicle driven by a person under license suspension or revocation
    An assessment of Virginia's law requiring the forfeiture of any vehicle driven by a person under license suspension or revocation.
    Wetsel, John E
    1975-01-01 | PDF
    In Virginia an individual arrested for the first time for driving while his driver's license is suspended or revoked is subject to the following penalties: He will be jailed for not less than ten days and not more than six months (Va. Code Ann. section 46.1-350(b)); 2. he may, in addition, be fined up to $200.00 (Va. Code Ann. section 46.1-350(b)) ...
  • Planning criteria for express busfringe parking operations volume I of express busfringe parking planning methodology
    Planning criteria for express bus-fringe parking operations : volume I of express bus-fringe parking planning methodology.
    Demetsky, Michael J ;
    Cleveland, Robert P
    1975-01-01 | PDF
    Tripmaker reactions to two recent express bus-fringe parking operations in Richmond and Norfolk-Virginia Beach Virginia are examined. This travel behavior's interpreted to establish planning and design guidelines for locating and designing fringe lots and establishing operational policy for associated bus services. A market area for each service is ...
  • Sign post paint evaluation September 1975
    Sign post paint evaluation : September 1975.
    Blackwell, Steve R
    1975-01-01 | PDF
    After reviewing R. N. Robertson's report on "An Investigation of Streaking on Highway Traffic Signs", the Traffic Research Advisory Committee recommended that an evaluation of sign post paints be conducted. Special attention was to be focused on the residues formed by the sign post paints on the sign panels. The study was to select from the Departm ...
  • Investigation of alternative curb mixes
    Investigation of alternative curb mixes.
    Maupin, G. W
    1975-01-01 | PDF
    The objective was to design and test mixes that might satisfactorily be used to replace the asbestos curb mix. Tentatively, it was recommended that a Gilsonite mix be used where high stability was required.
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