United States. Department of Transportation. Federal Highway Administration
1985-04-01
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Selected data on highway toll facilities in the United States are contained in Tabla T-1 of this report based on a survey of facilities in operation, financed, or under construction as of January 1, 1985. The data includes information such as the name, financing or operating authority, location and termini, feature crossed, length, and road system
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One aspect of the control of hazardous cargo is to ensure that trucks carrying such cargo travel on approved routes. These routes, once chosen, should be clearly marked as permitted routes; conversely, routes not allowing hazardous material movement should be marked with prohibitory signs. This study evaluated six candidate signs in both prohibitor
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This document presents a synopsis of 174 references which pertain to traffic detectors. All types of detectors were included, however, the majority of the references concern the use of inductive loop detectors which is the most popular type of detector. Parr I describes the history of traffic detectors and their purpose. Part II provides a brief su
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This study addressed the design and performance of longitudinal barriers for construction zones. The strengths of various connections for portable concrete median barriers (PCB) are analyzed and theoretical treatments of behavior of the PCB during a collision are presented. These analyses along with cost data and crash test information are used to
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This study addressed the design and performance of longitudinal barriers for construction zones. The strengths of various connections for portable concrete median barriers (PCB) are analyzed and theoretical treatments of behavior of the PCB during a collision are presented. These analyses along with cost data and crash test information are used to
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Eight crash tests of utility vehicles, pickup trucks and one straight truck were conducted to determine the response of these atypical vehicles during collisions with concrete median barriers. In order for these tests to be compared with GUARD simulations of similar collisions, vehicles geometrics, suspension and inertial properties were determined
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This study addressed the design and performance of longitudinal barriers for construction zones. The strengths of various connections for portable concrete median barriers (PCB) are analyzed and theoretical treatments of behavior of the PCB during a collision are presented. These analyses along with cost data and crash test information are used to
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Guidelines for conducting comprehensive field monitoring programs are provided in this volume. Included are detailed descriptions of site selection, planning aspects, station location, equipment installation and maintenance, sampling methodology, physical/chemical analytical methods, data analyses and glossary. All aspects of field practices are co
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This resource document is intended to serve as a user tool to supplement the Procedural Guidelines Manual (Volume IV). State highway agencies can use these resources to more comprehensively address the effects of stormwater runoff in environmental documents (i.e., EIS's and EA's). This document provides a critical summary and review of the technica
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This manual, Volume III in a four-volume series of reports relating to water quality impacts of highway maintenance practices, is designed to aid State highway officials, planners, and local officials in the preparation of environmental impact statements, environmental assessments, and similar environmental documentation where required by Federal a
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This manual, Volume IV in a four-volume series of reports relating to water quality impacts of highway maintenance practices, provides practical guidance to highway agency maintenance personnel for minimizing impacts to water resources from maintenance practices while keeping highway agency costs at a minimum. The manual identifies those maintenanc
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This report, Volume II in a four-volume series of reports, describes a field research program to determine water quality impacts from two routine highway maintenance practices -- control of vegetation using herbicides and surface treatment (seal-coating) of asphaltic concrete pavements. It includes the details of monitoring site selection, precipit
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This report, Volume I in a four-volume series of reports, summarizes a research project involving impacts from highway maintenance practices on water quality. Research efforts included 1) evaluating the impact potential of routine practices, 2) developing assessment methods for specific practices, 3) identification of measures to mitigate impacts a
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United States. Federal Highway Administration. Office of Highway Operations
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1985-03-01
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This training package has been developed to address the area of asphalt pavement construction. It includes as an introduction, the identification of some major pavement distresses. It then addresses the major phases of materials, design, production, placement, and compaction, then concludes with a more detailed look at asphalt pavement performances
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Safety of Twin-Trailer Operations; Accident Analysis of Left Turn Phasing; Slide Corrections Using Deep Interceptor Trenches; Roadside Safety Software and Data Library: Basic Concepts and Present Status
More than 27,000 trucks were weighed in seven states using a Bridge Weigh-in-Motion system. The system used instrumented highway bridge girders to act as equivalent static scales to obtain truck gross and axle weights, dimensions and speed. Improvements were made in the system software and hardware such that weighing can now be performed automatica
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This report documents the development of a generalized methodology for determining the incremental effects of accident countermeasures employed individually and in groups. Two basic experimental designs are presented. and each is illustrated in an experimental plan for two groupings of countermeasures in two common highway situations. An assessment
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