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.
There is a need for a tangible way to evaluate the esthetic or visual characteristics of bridges. This report describes such a method based on a numerical experiential rating scale of -10 to +10. Negative values represent unpleasurable responses; positive values, pleasurable ones. Using the rating method proposed seven kinds of bridges are evaluate
...
In view of the potential cost savings to be achieved through the use of the regular yellow traffic paint diluted with less expensive white paint, it was decided that the Department would evaluate roadway applications of the paint mixture with emphasis on the compatibility of the Department's painting equipment and procedures with the proposed paint
...
In March 1979, the Virginia General Assembly gave the Virginia Department of Transportation Safety (VDTS) the power and responsibility to make binding policy and set standards for the local Virginia Alcohol Safety Action Projects across the state. In an attempt to assist the staff of the VASAP State Office in setting standards, a complete system re
...
The Traffic Planning manual is a reference of basic traffic engineering techniques and their potential for improving traffic flow and traffic safety of urban arterial streets and highways. The manual identifies the traffic engineering measure appropriate for consideration in development of transportation improvement plans and programs.
This study has been undertaken to investigate problems relating to the durability of highway striping materials used by the Department The research is limited to an evaluation of the durability and retroreflectance characteristics of selected paints, thermoplastics, and preformed tapes recommended by the Materials Division for use as centerline and
...
The purpose of this study was to perform a state-of-the art evaluation of contractor assistance in Virginia's highway maintenance. The study revealed that expenditures for contractor assistance accounted for 2.79% of the total expenditure on ordinary maintenance, 60.17% of the expenditure on maintenance replacement, and 32.60% of the expenditure on
...
This report describes a method for estimating the probability that a highway facility will violate the eight hour National Ambient Air Quality Standard (NAAQS) for carbon monoxide (CO). The method is predicated on the assumption that overlapping eight-hour time periods which each yield average CO levels in excess of the NAAQS specified maximum leve
...
Although the parameters that characterize traffic flow have been established nationally for several years, it is only recently that technology has made accurate measurement of them economically feasible. This report describes a system that provides accurate measurement of great quantities of traffic flow data at a low cost by employing digital elec
...
This report presents the results of a pilot quality assurance program initiated in the Richmond District in 1978. Under this program the producer's control tests are used for the acceptance of central mix aggregate and bituminous concrete and the Department is thus enabled to reduce its testing. The program has proven to be successful and has been
...
This is a synthesis of information drawn from published reports as well as unpublished memoranda and committee reports available to the author because of his earlier involvement in the development of specifications for asphalt in the American Association of Highway and Transportation Officials, American Society for Testing Materials, and the Federa
...
The average illumination levels and uniformity of the lighting were determined on the two sections of roadway when all of the lighting was in operation and when the lighting was partially turned off. The illumination on both sections was found to be within the recommended quality and quantity standards when all of the luminaires were in operation.
...
Several variations of the quick bottle test were evaluated to determine the procedure having the best repeatability. Naphtha was selected over kerosene and white gas as the solvent for use in the test, and room temperature was selected over 140°F as the test temperature. The procedure incorporating these variables was used to test several concentra
...
A 1-year fleet test in which 130,000 gal. of gasohol were prepared and used was conducted in the Charlottesville- Culpeper area. The handling and storage of the fuel was monitored, and fuel consumption and maintenance records were maintained on 95 Department vehicles (primarily 1/2-ton pickup trucks and 3-ton dump trucks) that operated a total of 1
...
In 1974 the Research Council initiated a statewide survey of metal truss bridges to identify any with historic significance. This pioneering effort was financed with state research funds as it was intended to aid the Virginia Department of Highways and Transportation in meeting its obligations mandated by various requirements of the environmental r
...
This report discusses the basis of the original Marshall design criteria established by the Waterways Experiment Station and criteria used by the Asphalt Institute and Virginia Department of Highways and Transportation. Marshall test properties are discussed in detail, particularly the related physical concepts. Special attention is paid to obtaini
...
This memorandum examines the data collected during the Research Council's 1976 study of the transportation of 12- and 14-foot wide manufactured housing units to determine whether the data were adequate for analyzing the effects of wide load speeds on other traffic and, if possible, to determine what these effects were. The major conclusion from the
...
Senate Bill 85, an action of the 1978 General Assembly, amended the Code of Virginia to provide, in part, that the Division of Highway Safety be succeeded by the newly created Department of Transportation Safety effective July 1, 1978. In its Declaration of Policy, section 33.1-390, the amended Code states that it is the policy of the Commonwealth
...
In March 1979, the Virginia General Assembly gave the Virginia Department of Transportation Safety (VDTS) the power and responsibility to make binding policy and set standards for the local Virginia Alcohol Safety Action Projects across the state. In an attempt to assist the staff of the VASAP State Office in setting standards, a complete system re
...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.
United States Department of Transportation
