Wisconsin. Dept. of Transportation. Division of Planning and Budget
1978-10-01
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The Wisconsin Department of Transportation, Division of Planning & Budget is engaged in a planning-research project to evaluate its Highway Vehicle Classification Program. This paper documents the results of an evaluation of the design and administration of the temporal and spatial sampling procedures currently being employed to collect traffic com
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The HPMS effort is directed to the design and development of a continuing frame of reference which is capable of assessing the performance of highway systems with respect to the safe, efficient, and economical movement of people and goods, and which is also a basis for forecasting the potential impacts of future alternative programs and policies on
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The objective of this study was to collect and analyze data on freeway pedestrian accidents. Data on 236 accidents involving pedestrians struck on limited-access highways were collected. The data included behavioral sequence items, site characteristic items, identification items, pedestrian factors, driver factors and vehicle factors. The accident
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The potential shortage of asphalt cement and oversupply of sulfur make it advantageous to reduce to dependence of the paving industry upon asphalt cement while utilizing readily available sulfur. This report presents the results of an investigation of the use of elemental sulfur as a partial replacement and/or extender of asphalt cement in highway
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This report summarizes the major findings of a detailed, comprehensive report which has received only a limited distribution. The full report, FHWA-RD-78-209, is available upon request. An interdisciplinary team of researchers has conducted an in-depth review of the literature, supplemented with expert opinions, research experience, and limited tes
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The HFMS effort is directed to the design and development of a continuing frame of reference which is capable of assessing the performance of highway systems with respect to the safe, efficient, and economical, and which is also a basis for forecasting the potential impacts of future alternative programs and policies on such performance.
United States. Department of Transportation. Federal Highway Administration
1978-10-01
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Highway accident statistics indicate that the annual number and rate of traffic accident deaths have declined to the lowest levels since the early 1960's. This, along with the fact that annual vehicle miles of travel have generally increased through the same period, gives an indication that positive gains are being achieved from recent highway safe
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The overall objective of this study has been to develop methods of minimizing three aerodynamic-related phenomena: truck-induced aerodynamic disturbances, splash, and spray. An analytical methodology has been developed and used to characterize aerodynamic flow, truck splash and spray generation and propagation, adjacent driver visibility factors, t
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This report describes the results of a before-and-after study to evaluate the effectiveness of dynamic sign systems in alerting motorists to the presence of narrow bridges on two lane rural highways. Vehicle speed and lateral placement (perpendicular distance to roadway centerline) data were gathered for each of the dynamic sign systems tested as w
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Three selected sump grates were tested to evaluate their hydraulic and debris handling performance in a sump condition. The grates were selected based on the results of a previous study - Bicycle-safe Grate Inlets Study - Volume 1 - Hydraulic and Safety Characteristics of Selected Grate Inlets on Continuous Grades. The major objective of the initia
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This report details the cost of owning and operating a typical 1978 automobile, including parking, which for this report is an intermediate size 1978 Ford 8 cylinder (302 CID) LTD II, four door sedan, equipped with standard accessories, automatic transmission, power steering, power disc brakes, radio, tinted glass and air conditioning. The data is
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The program objective was to develop a system capable of detecting snow, ice, frost, or slush over a highway bridge deck area greater than 4 x 2 feet (1.2 x 0.6 m) and generate a valid alarm signal to warn motorists of a hazard. The detection system selected was a microwave radiometer operating at 10 GHz which continuously samples a reference noise
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This report examines the development of two roadside barrier-median barrier systems by computer simulation. The systems are designated as the Concrete Barrier with Blockedout W Rail and the Thrie T Barrier (TTB). Both systems are designed for impacts by vehicles ranging from 2250 lb (1020 kgm) to 40,000 lb (18.140 kgm). In addition, the concrete ba
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Getting Research Into Practice; New Directions for the Federally Coordinated Program of Highway Research and Development; Seasonal Variations in Pavement Skid Resistance—Are These Real?; Ice Loads on Bridge Piers
United States. Federal Highway Administration. Program Management Division
1978-09-01
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In recent years, there has been a growing recognition of the need for a mechanism that monitors the performance of our highway system. Such a monitoring system would include the means for obtaining data to assess the highway's capability to provide for the transport of persons and goods and to support the vast expenditure of public funds that are e
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The subject report is the tenth in a series of annual summaries of fatal and injury accident data submitted by the States in Table TA-l. The form of the report has been changed. Highway systems were revised extensively during 1976, as required by the Federal-aid Highway Act of 1973, and a number of the States were unable to compile complete data fo
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