The objectives of this investigation were to evaluate the latest prestressed concrete bridge girder designs being used in the United States and to determine which represent optimum designs that could be promoted as national or regional standards. Bridges built with pretensioned I- and T-sections for spans in excess of 80 ft (24.4 m) and concrete co
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United States. Department of Transportation. Federal Highway Administration. Offices of Research, Development, and Technology
1982-01-01
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This 1982 report on the Federally Coordinated Program (FCP) of Highway Research and Development is the ninth in a series of annual reports on the joint activities and achievements of the Federal Highway Administration (FHWA) and the States in highway research and development (R&D). This report presents a general picture of accomplishments in the FC
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United States. Federal Highway Administration. Office of Highway Planning
1982-01-01
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This report updates "The Cost of Owning and Operating Automobiles and Vans--1979." It traces selected vehicles in personal use and their costs through a 12-year lifetime of 120,000 miles using mid-1981 data. The basic methodology is similar to that used in the earlier study with a few exceptions. The weight classes reflect the trend toward down-siz
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This report provides basic information for 1982 from each State on road--user tax.es and property taxes levied on a selected group of vehicles. The intent is neither to weigh the merits of any of the taxes being reviewed nor to recommend any tax poHcy9 but to supply the means to measure and compare the annual payments that would be made for each of
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United States. Federal Highway Administration. Office of Traffic Operations
1982-01-01
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The Standard Metric Alphabet series for highway signs were prepared by the Federal Highway Administration and may be used in lieu of the 1966 Edition with signs shown in the Manual on Uniform Traffic Control Devices.
Channel instability is manifested as lateral bank erosion, progressive degradation of the streambed, or natural scour and fill of the streambed. Lateral stability is related to stream type, and four major stream types having different stability characteristics are distinguished: equiwidth, wide-bend point bar, braided point-bar and braided. Measure
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An Epoxy Thermoplastic (ETP) Pavement Marking Material has been manufactured on both pilot and semi-commercial scales using formulations provided by the Federal Highway Administration project monitors. A total of 3752 gallons (14,260 liters) of two white formulations and 250 gallons (950 liters) of a yellow formulation were prepared using standard
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Local pressures due to water waves were measured at discrete points along the underside of two 1:24 scale model bridges for various water depths and wave heights. One model was of a four-lane slab and beam bridge carrying traffic along two structurally separated lane pairs supported by a common pile bent. The other model was of a trapezoidal box gi
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This report suggests guidelines for the strong-motion instrumentation of highway grade separation bridges. It has been written for the civil or structural engineer who is not familiar with the objectives of strong-motion instrumentation programs, the instrumentation utilized in such programs, and where and how to install that instrumentation. It is
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The work reported herein was a task in the program to measure the response of tunnels to earthquakes. The objective was to install digital recording strong motion instrumentation at the Caldecott Tunnel in Oakland, California. The report includes a description of the tunnel, the geologic setting of the region and geology at the subsurface instrumen
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A large experimental program which involved approximately 700 tests was used to develop statistically reliable slip loads for bolted shear connections with coated contact surfaces. Four different painting systems were evaluated for use in friction-type connections. Variables included in the study were paint thickness, size of hole, type of steel, a
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Dallas Freeway Corridor Study; Proposed Plans for Measurement of the Aerodynamic Behavior of the Luling, Louisiana Cable-Stayed Bridge; Rapid Measurement of the Chloride Permeability of Concrete; Mitigation of Earthquake Damage on Eastern Highway Systems
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