The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
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
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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))
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Three 180', simple span, composite plate girder structures were designed to approximate the material requirements and first cost associated with a polymer-impregnated concrete as compared to those for a conventional concrete bridge deck. The structures were designed by the working stress method, and although the AASHTO code was applied where applic
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As esthetics is not an exact science, differences of opinion occur, even between experts; however, studies had found that in most cases there were statistical preferences. These preferences are presented. For the convenience of the designer, a format using systematic diagrams of the component parts of short and medium length highway bridges used in
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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
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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
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This report summarizes the results of studies conducted to date on the instrumentation of two pipe culverts under deep fill on Interstate 77 near Fancy Gap, Carroll County, Virginia. At this writing, both culvert pipes and essentially all of the instrumentation have been installed. Readings of strain and gross deformation are being obtained periodi
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During the early stages of the pilot study of Albemarle County it was necessary to examine and extract all the road orders for the counties from which Albemarle was formed, as well as the orders for Albemarle when it still contained the counties of Amherst, Buckingham, Fluvanna, Nelson, and a part of Appomattox. The broad applicability of the order
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This report summarizes (1) the findings of a research study on the applicability of using high intensity reflective sheeting on overhead signs, and (2) the implementation of recommendations evolving from these findings through elimination of the illumination on many overhead signs in Virginia. A survey was conducted to determine the percentage of o
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Because of widespread concern about the effect of textured pavement surfaces on interior car noise, sound pressure levels (SPL) were measured inside a test vehicle as it traversed 21 pavements with various textures. A linear regression analysis run on the dBA values and the predicted stopping distance numbers (PSDN) for the same pavements showed no
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Thirty-one sites representing the types of pavement surfaces on the highways of Virginia were tested by the Virginia Highway and Transportation Research Council skid trailer in an effort: (1) to determine the influence that tire tread depth, pavement texture, and water film thickness have on the deterioration of skid numbers with increased test spe
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Studies of the maintenance and hydrology considerations involved in a sidewalk undermining problem in the Fairfax area are reported. Sidewalk undermining is attributed principally to a highly erodible soil found in much of the area and to the fact that current design standards and construction specifications are not adequate for sidewalk constructi
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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
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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
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The Commonwealth of Virginia implemented the sign permissive or "eastern" rule permitting right turns on red traffic signals where designated by sign in 1972. In 1975, as a result of the growing national trend toward employing the general permissive or "western" rule (right turn on red permitted except where prohibited by sign) and in the interests
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Information has been gathered regarding the performance of more than 400 lane-miles of jointed PCC interstate pavements located in five construction districts in Virginia. The factors causing pavement deterioration have been identified, the processes associated with deterioration have been described, and typical examples of distress, or failure typ
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The study sought a detailed description of the public involvement techniques embraced in the public hearing strategy of each of the nation's state transportation agencies. In addition, it examined the status of the public hearing as a principal technique within the citizen participation process of each agency to determine how strong or weak a role
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Presented is an evaluation of engineering measures instituted in Virginia to reduce incidences of wrong-way driving. Also discussed are the data collected in a survey of wrong-way driving incidents, the causes of wrong-way entries determined through recent on-site investigations, and corrective measures for preventing them. Measures found highly ef
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