Fatal and personal injury accident data by highway system for the calendar year 1968, compiled from reports submitted by the 50 States and the District of- Columbia on Table TA-1, are summarized in the tables which follow. Data for all free and toll roads are included.
This manual provides detailed design guidance for sizing and placing riprap. Sketches illustrate design and placement for dumped stone, hand-placed, wire enclosed, grouted and concrete bag riprap. Sample specifications for the various riprap materials are provided.
Application of Statistical Concepts to Accident Data; Economic Study of Luminaire Mounting Heights for Highway Lighting Systems; Severance Case Studies—Bridging the Gap Between Findings and Their Application
United States. Department of Commerce. Bureau of Public Roads
1967-03-08
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A basic assumption that must be made whenever one wants to evaluate a proposed system which would replace (in total or in part) the functions presently performed by an existing system or systems, is that the proposed system must perform the replaced functions as well as, or better than the existing system. One should not replace a system (or part o
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This publication provides a general historical summary of information dealing with highways, their use, and financing, thus bringing together under one cover a comprehensive statistical review of highway development in the United States through 1965. The information presented in this volume supplements and in some instances supersedes similar data
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Gap Utilization, A Warrant for Traffic Signal Control; Vehicle Speed Estimation from Visual Stimuli; Travel by Motor Vehicles in 1963, 1964, and 1965; New Publications
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