A series of reports have been written to document revised and updated versions of the simulation of highway-vehicle-object interactions in a single vehicle highway environment. The programs documented were developed under FHWA sponsorship to provide the highway safety community with an analytical means of evaluating the effects of highway/roadside
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The purpose of this report was to develop guidelines for the operational traffic engineer and the transportation researcher to determine when, where and how to use time-lapse photography. This technique permits the large scale sampling of specific events where: the level of detail required, the cost involved, the elimination of data bias due to the
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On June 13, 1970, a brittle fracture developed in one of the three tension flanges of a large steel box girder bridge under construction at Bryte Bend, California, as the concrete deck was being placed. This report presents a summary evaluation of the extensive fracture toughness and failure analysis data that were gathered by and for the Californi
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This document reports the findings and applications of research investigating the effectiveness of specially designed low pressure sodium luminaires to increase pedestrian safety at intersection crosswalks at night. It was found that the LPS systems had beneficial effects on the crossing environment, driver performance, and pedestrian behavior. Ill
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This users' manual represents the practical recommendations and guidelines for implementation of special crosswalk illumination systems. It contains information describing the illumination systems, specifications, installation recommendations and design information. Warrants for crosswalk illumination are presented. Site selection procedures are re
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Space-Age Technology for Deicing Hazardous Highway Locations; Highway Design for Motor Vehicles—A Historical Review Part 4: The Vehicle—Carrying Capacity of the Highway; Third Annual FCP Conference Held in Minnesota; A Snowplowable Highway Lane Delineator for We-Night Visibility; Rapid Information Retrieval for Federal Highway Administration Resear
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The purpose of the School Trip Safety and Urban Play Areas research project was to develop guidelines for the protection of young pedestrians (5-14 yrs) walking to and from school, entering and leaving school buses, and at neighborhood play. Volume I summarizes the entire project, providing an overview of the other documents developed during this F
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This document presents a set of procedures for planning and implementing safe school bus routing and scheduling, based on interviews with responsible school officials and traffic engineers and a review and synthesis of procedures used throughout the United States. School officials, traffic engineers, parents, police, and children share the responsi
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The play street is a street temporarily closed to traffic while a variety of super- vised recreational activities for all age groups take place. Since no construction is required in order to create the play street, the play street program brings an accident reduction potential and a number of social, educational, and recreational benefits at a comp
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This document presents a set of procedures for developing and implementing safest school route maps. School officials, parents, traffic engineers, police and the children themselves share the responsibility for a safe trip to and from school. The local traffic engineer is usually called upon to develop and maintain safest school route maps, where t
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This study of the impact of reduced light conditions (under winter Daylight Savings Time) on school trip safety was performed in two phases. The first was the identification and categorization of increased school trip safety problems associated with DST and the countermeasures in use to mitigate these problems. The second phase involved a critique
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The objective of this study is to assess horizontal drilling as an alternative to pilot tunneling in geological investigation prior to the design and construction of highway tunnels and to identify means to increase the penetration capability and accuracy and decrease the cost of horizontal drilling. This volume assesses the horizontal penetration
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