The Demonstration Project 910, "Design and Construction of Driven Pile Foundations," equipment includes the demonstration of a dynamic pile testing system which uses a field computer and a mobile pile load testing frame. Even though the project is yet to be announced, the equipment and personnel are made available to a requesting State highway depa
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The overall objectives of this research were to identify the sources of highway pollutants and to determine their deposition and accumulation with the highway system and subsequent removal from the highway system to the surrounding environment. This document is the appendix to the research report and contains the detailed monitoring data for rainfa
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The study has determined the safety effectiveness of various types of motorist warning devices in reducing accidents at rail-highway crossings. The study was based on analysis of data included in the DOT-AAR Rail-Highway Crossing Inventory and the FRA Railroad Accident/Incident Reporting System for the years 1975 through 1980. Emphasis was placed o
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Decisions among competing pavement investment and maintenance strategies must be based upon economic analyses considering both the costs and impacts of each strategy. Such analyses are sensitive to several local factors, including initial pavement design and construction, traffic loads, climate, maintenance and rehabilitation policy, maintenance te
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Although much research has been done on Manning's roughness coefficients for stream channels, very little has been done on the selection of roughness values for densely vegetated flood plains. A procedure for the determination of Manning's roughness coefficient (n) for channels and flood plains analyzes the different roughness factors that affect t
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Although much research has been done on Manning's roughness coefficients for stream channels, very little has been done on the selection of roughness values for densely vegetated flood plains. A procedure for the determination of Manning's roughness coefficient (n) for channels and flood plains analyzes the different roughness factors that affect t
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This report presents a cost-effective method for collecting statewide traffic information. It provides a means of integrating vehicle classification, truck weight and traffic volume information, and includes procedures for determining the number of each of these types of monitoring sessions to provide data estimates within specified levels of preci
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This edition of Hydraulic Engineering Circular No. 12 incorporates new design charts and procedures developed from laboratory tests of interception capacities and efficiencies of highway pavement drainage inlets. A chart for the solution of the kinematic wave equation for overland flow and a new chart for the solution of Manning's equation for tria
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Federal Highway Administration Research on Calcium Magnesium Acetate—An Alternative Deicer; The Safety of Narrow Lanes for Traffic Control at a Construction Site; Foundation Engineering Research: Part I—Spread Footings; How Effective are Crash Cushions in Reducing Deaths and Injuries?
The overall objectives of this research were to identify the sources of highway pollutants, and to determine their deposition and accumulation within the highway system and subsequent removal from the highway system to the surrounding environment. Included in this report are the details of monitoring site selection and field monitoring procedures.
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This study was completed to identify and define the interdependency relationships and corresponding interaction criteria between aging, environmental, and vehicle load effects upon and during the life cycle of highway and airport pavements and their support systems. A questionnaire was sent to numerous researchers and engineers to obtain a consensu
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United States. Federal Highway Administration. Office of Highway Planning
1984-01-01
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In recent years, there has been a growing recognition of the need to assess the highway systems periodically with respect to extent and physical condition; the safety, efficiency, and economy of the systems in serving the movement of goods and people; and the impacts of existing national programs and policies. In addition, there is a need to assess
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United States. Federal Highway Administration. Office of Highway Planning
1984-01-01
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This report updates The Cost of Owning and Operating Automobiles and Vans - 1982. It traces selected vehicles in personal use and their costs through a 12-year lifetime of 120,000 miles using 1984 data. The user is cautioned against making direct comparisons between the costs reported in this and previous issues. The study methodology was changed p
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United States. Federal Highway Administration. Construction and Maintenance Division
1984-01-01
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This handbook is primarily intended to assist the Federal Highway Administration (FHWA) area engineers when they make highway construction inspections. It can also be used when reviewing specifications, supplemental specifications, and special provisions during the PS&E stage of a project. It is a companion to the design oriented FHWA notebook enti
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