This report presents an evaluation of three methods for post-tensioning concrete pavements without embedded steel tendons. All methods permit joint movement while maintaining slab prestress at the pavement joint. One method consists of thin-wall hydraulically pressurized bellows as stressing elements. The second uses a pneumatically charged rubber
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Corrosion of Nonspecification Epoxy-Coated Rebars in Salty Concrete; Hydroplaning—How to Reduce It; Autonofunk—Emergency Voice Radio in Automobiles: The System and Some of the Problems; Highway Stormwater Pumping Stations
This manual provides structural design methods for culverts and for improved inlets. Manual methods for structural analysis are included with a complete design procedure and example problems for both circular and box culverts. These manual methods are supplemented by computer programs which are contained in the Appendices. Example standard plans ha
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Recently developed improved methods for highway storm water drainage require information on the temporal distribution of rainfall (i.e., hyetograph) in addition to the average rain intensity. The triangular design hyetograph method is developed as a practical method to provide the local storm hyetograph for design of small highway drainage faciliti
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Recently developed improved methods for highway storm water drainage require information on the temporal distribution of rainfall (i.e., hyetograph) in addition to the average rain intensity. The triangular design hyetograph method is developed as a practical method to provide the local storm hyetograph for design of small highway drainage faciliti
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Recently developed improved methods for highway storm water drainage require information on the temporal distribution of rainfall (i.e., hyetograph) in addition to the average rain intensity. The triangular design hyetograph method is developed as a practical method to provide the local storm hyetograph for design of small highway drainage faciliti
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Recently developed improved methods for highway storm water drainage require information on the temporal distribution of rainfall (i.e., hyetograph) in addition to the average rain intensity. The triangular design hyetograph method is developed as a practical method to provide the local storm hyetograph for design of highway storm drainage faciliti
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The report describes the results of work conducted as a phase of a study concerned with the restoration of load transfer to existing jointed concrete pavements. Five projects were selected for study to determine the location of dowel bars placed by mechanical implantation and in basket assemblies. A one percent stratified random sample of bars were
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A package of six user-oriented computer programs has been developed and tested for the analysis and design of urban highway drainage systems and related nonpoint source pollution problems. These programs are organized into four related but independent modules. This report is the Executive Summary for this study. It presents the major findings of th
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Stone columns have been used since the 1950's as a technique for improving both cohesive soils and silty sands. Potential applications include (1) stabilizing the foundation soils to support embankments, approach fills and reconstruction work on weak cohesive soils, (2) supporting retaining structures (including Reinforced Earth), bridge bent and a
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United States. Department of Transportation. Federal Highway Administration
1983-04-01
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Selected data on highway toll facilities in the United States are presented in Table T-1 of this report based on a survey of facilities in operation, financed, or under construction as of January 1, 1983. The data includes information such as the name, financing or operating authority, ownership, location and termini, feature crossed, length, and r
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This study consists of (a) investigation of current practices in several states to upgrade truss bridges; (b) literature search for state-of-the-art perspective; (c) evaluation of information from the FHWA bridge inventory; and (d) search for examples of truss bridge rehabilitation. The information is used to develop and evaluate various methods to
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This report documents an evaluation of driver characteristics and how they affect highway design and traffic operations standards. The study involved the identification of all standards which are a function of a driver characteristic; the development of a population profile for each characteristic; calculation of the sensitivity of each standard to
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Recent improvements in the engineering practice of chemical grouting have provided increased confidence in this method of ground modification. Designers can significantly improve the success of chemical grouting by defining their grouting program objectives and focusing on the geotechnical conditions controlling the process. New developments in ana
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This paper will examine the history of road and highway financing in this country and the development of the "user-pays" concept. We will describe the user-nonuser debate, including who benefits from highways. We will explore various definitions of what a "user" tax is and is not - according to various authorities (including the ultimate arbiter, t
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This report presents the results of a laboratory and field research program investigating innovative method for design and control of chemical grouting in soils. Chemical grouting practice is reviewed and standard evaluation and measurement techniques are presented. Problems particular to chemical grouting design and construction control are also d
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This report focuses on the engineering practice of chemical grouting, summarizing the findings of a study to improve design and control techniques for chemical grouting in soils. Improved methods for the planning, control and evaluation of chemical grouting are now available. These include a better understanding of injection behavior, grouted mater
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