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.
Importance of Inspection-Movable bridges are built to the rigid specificationsof such groups as the American Association of State Highway andTransportation Officials (AASHTO), the American Road Builders Association(ARBA) and Underwriters Laboratories (UL). While movable bridges aredesigned to provide many years of reliable service, they operate in
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The delineation of representative leaders in minority subareas for participation in transportation project planning constitutes the overall objective for the report. Techniques for leadership identification were derived from existing sociological literature and adapted for use in smaller community subareas in both urban and rural locales. Specifica
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The Texas State Department of Highways and Public Transportation has·developed and implemented a "quick-load" method for load testingpiling and drilled shafts. Using this method a load test can becompleted in a relatively short time of one to two hours. On smallprojects where the time consuming AASHTO test cannot be economicallyjustified, use of th
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Study of quarry rocks, core, weathered rock, and road base aggregates from 12 sources in western Oregon reveals that degree and type of alteration and textural distribution of glass are the chief causes of degradation in basaltic aggregate used in road construction. Smectitic clays are the alteration products most responsible for breakdown. Samplin
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Straw mulch proved more effective in erosion control than re-claimed paper mulch in East Texas. Straw mulch anchored by asphalt or latex was significantly superior to a resin anchored straw mulch. There was no significant difference of Bermuda grass seedlings per square foot with latex or asphalt anchors. Bermuda grass and weeping lovegrass were th
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A three day workshop was held at Battelle's Columbus Laboratories on April 26-28, with the purpose of bringing together the nation's leading investigators of three-dimensional fracture to discuss together the present status of three-dimensional fracture. Proceedings of a workshop held 26-28 Apr 1976 at Battelle Columbus Laboratories, Columbus, OH.
Physiological, biochemical, and psychological assessments of stress in air traffic controllers were made at Los Angeles (LAX) and Oakland (OAK) Terminal Radar Approach Control (TRACON) facilities before and after installation of Automated Radar Terminal Systems-III (ARTS-III). Heart rates of controllers on duty or at rest scarcely changed from befo
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Three groups, each comprising five healthy, male, paid volunteers (ages 21 to 30), were studied for 11 days. Baseline data were collected for 3 days, during which subjects adhered to a day/night routine. On the fourth day each group took a 'flight' in the altitude chamber.Following the flight day, subjects in the first group (Group I) slept from on
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Both highway and railroad organizations are concerned with the maintenance problems of highway-railroad grade crossings. The Texas State Department of Highways and Public Transportation spends approximately one-half million dollars yearly for the maintenance of grade crossings. It has been the usual experience of engineers, and it is a conviction i
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The several methods of computing stiffness coefficients or elastic moduli of materials to be used in computerized pavement design procedures and in other research activities requiring the knowledge of these values are presented in this report. The methods include computer codes for calculating stiffness coefficients and elastic moduli of simple two
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Although there is a long history of State Department of Highways and Public Transportation (SDHPT) public involvement and although the more structured Action Plan processes have been operating for over two years, there are no established methodologies or criteria for evaluating public involvement techniques. Therefore, the methodologies and analyst
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Notes on the attempt by the author to find documentation for the origin and validity of the designation of Route 29 in Virginia as the "Seminole Trail".
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