In an effort to minimize the cost and maximize the effectiveness of highway noise barriers, the Federal Highway Administration and a National Pooled Fund Panel (made up of 14 States) funded a field study program on an experimental highway noise barrier. A test barrier was constructed in 1984 at a site at Dulles International Airport in Chantilly, V
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The objective of this project was to test aesthetic bridge rails for park roads, parkways, and other roads under Federal jurisdiction. Four designs were analyzed and evaluated: the Modified (Kansas Corral bridge rail, the Forest Service glulam bridge rail, the Natchez Trace bridge rail, and the aluminum tri-rail bridge rail with sidewalk. Two desig
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This report summarizes the state of the art of safe management materials transportation by highway. The report includes a review of literature related to hazardous materials transportation safety; a review of the responsibilities and current practices of Federal, State, and local agencies; a critique of current sources of accident, incident, and ex
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The primary product of this study was a demonstration performance -related specification (PRS) system for PCC pavement construction. The system is designed to consider three key factors (ie, PCC strength, slab thickness and initial serviceability) in assessing an as-constructed pavement delivered by a contractor and calculating an appropriate rewar
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The report describes the state of the art video equipment used and experiences gained from the 6,800 mile field test. The first objective of this project was to determine if laser disc equipment could capture and store usable roadway images while operating in a mobile environment. The second objective was to evaluate methods of using optical disc s
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This report summarizes the results of a cooperative value engineering study on the repair of transverse cracks in asphalt concrete pavements. The objective of the study was to optimize the expenditure of maintenance funding through an in-depth study of the present methods, materials, and equipments being used, and the development of better methods,
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Seven navigational devices were tested in the Federal Highway Administration Highway Driving Simulator (HYSIM) for their effects on safe driving performance. Younger, middle-aged, and older drivers navigated a 26-mi (41.8-km) route through simulated streets of Detroit, Michigan, using one of seven devices. A control group used strip maps. The other
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Ground anchors, often called tiebacks, are structural elements which receive their support in soil or rock and act to retain earth masses and/or applied structural loads. The Federal Highway Administration recognized that the use of permanent ground anchors in highway cut sections could affect substantial benefits in both economy and safety. The sp
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Ground anchors, often called tiebacks, are structural elements which receive their support in soil or rock and act to retain earth masses and/or applied structural loads. The Federal Highway Administration recognized that the use of permanent ground anchors in highway cut sections could affect substantial benefits in both economy and safety. The sp
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This is one of four final documents of an investigation dealing with the characterization of stormwater runoff pollutant loads from highways, and the prediction of water quality impacts they cause. Study results are based on monitoring data from 993 individual storm events at 31 highway runoff sites in 11 States. Impact prediction is based on a met
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This is one of four final documents of an investigation dealing with the characterization of stormwater runoff pollutant loads from highways and the prediction of water quality impacts they cause. Study results are based on monitoring data from 993 individual storm events at 31 highway runoff sites in 11 States. Impact prediction is based on a meth
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This is one of four final documents of an investigation dealing with the characterization of stormwater runoff pollutant loads from highways and the prediction of water quality impacts they cause. Study results are based on monitoring data from 993 individual storm events at 31 highway runoff sites in 11 States. Impact prediction is based on a meth
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This is one of four final documents of an investigation dealing with the characterization of stormwater runoff pollutant loads from highways, and the prediction of water quality impacts they cause. Study results are based on monitoring data from 993 individual storm events at 31 highway runoff sites in 11 States. Impact prediction is based on a met
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Oregon State University. Transportation Research Institute
1990-03-01
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These proceedings are the results of a 3 day resilient modulus testing workshop. The objective of the workshop was to address the significance of utilizing and evaluating the resilient moduli of highway materials. At the workshop, 25 presentations were made on the various aspects of test techniques and systems used to evaluate resilient modulus. Wo
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FASTRID: An Expert System for Bridge Fatigue; Evaluation of the PRORUT System; Laboratory Evaluation of a Fractured Steel Plate Girder Bridge; Motorist Compliance to Standard Traffic Control Devices
A general review of methods for measuring the stiffness properties of asphalt at temperatures below 77 degrees Fahrenheit (25 degrees Celsius) is presented. Methods used traditionally for asphalt cement as well as those used in other technologies, such as polymer science, are reviewed. A method that is simple to conduct, suitable for specification
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A practical method for determining the road surface drainage system design with the theoretic Lowest Total Economic Cost (LTEC) is developed. The LTEC design determines the design rain which, when used in a rational-based design context, will yield the most economic choices of gutters, inlets, and laterals considering both construction costs and ri
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