Roundabouts


Book Description

TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.







Public Roads


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Effect of Highway Standards on Safety


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State Product Evaluation Programs


Book Description

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 328: State Product Evaluation Programs examines the general use of evaluation programs within state departments of transportation (including the use of state specifications, and laboratory and field testing results), the national programs that exist to support the integration of new products and technologies into practice, and the general issues associated with conducting objective evaluations of new products and implementation of approved products.




Federal Register


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Instrumentation for Measuring Scour at Bridge Piers and Abutments


Book Description

"This report contains the findings of a study undertaken to develop, test, and evaluate fixed devices for measuring maximum scour depth. Companion manuals provide specific fabrication, installation, and operation guidance for two such devices. This report and the companion manuals will be of immediate interest to hydraulics engineers, bridge management engineers, and bridge maintenance engineers"--Foreward.




Converging Infrastructures


Book Description

This collection explores the opportunities for and possible implications of coordination between two of the major pieces of emerging infrastructure in the United States: Intelligent Transportation Systems (ITS) and the National Information Infrastructure (NII). This collection explores the opportunities for and possible implications of coordination between two of the major pieces of emerging infrastructure in the United States: Intelligent Transportation Systems (ITS) and the National Information Infrastructure (NII). Based on a recent workshop that was sponsored by the U.S. Department of Transportation, MIT, and Harvard, Converging Infrastructures frames the programmatic, organizational, and technical issues involved.