Evaluation of the Use and Effectiveness of Wildlife Crossings
Evaluation of the Use and Effectiveness of Wildlife Crossings

Author: John A. Bissonette

Publisher: Transportation Research Board

Published: 2008

Total Pages: 174

ISBN-13: 0309117402

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TRB¿s National Cooperative Highway Research Program (NCHRP) Report 615: Evaluation of the Use and Effectiveness of Wildlife Crossings explores development of an interactive, web-based decision guide protocol for the selection, configuration, and location of wildlife crossings.

Roundabouts
Roundabouts

Author: Lee August Rodegerdts

Publisher: Transportation Research Board

Published: 2010

Total Pages: 407

ISBN-13: 0309155118

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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.

Tentative Design Procedure for Riprap-lined Channels
Tentative Design Procedure for Riprap-lined Channels

Author: Alvin George Anderson

Publisher:

Published: 1970

Total Pages: 90

ISBN-13:

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The objective of this study was the development of criteria and design procedures for the use of aggregate riprap linings, which consists of a layer of discrete fragments of rock of sufficient size to resist the erosive forces of the flow. The design of such riprap-lined drainage channels involves the interrelationship between the discharge, the longitudinal slope, the size and shape of the channel, and the size distribution of the riprap lining. This report describes these interrelationships and develops design criteria by which a riprap-lined drainage channel can be proportioned and the riprap lining can be specified for a given discharge and longitudinal slope. The relationships so developed have been reduced to design charts, the use of which permits rapid and simple establishment of channel shape and size as well as of the properties of the riprap lining.

Guide for Pavement Friction
Guide for Pavement Friction

Author:

Publisher: AASHTO

Published: 2008

Total Pages: 87

ISBN-13: 1560514280

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This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.

Roundabouts in the United States
Roundabouts in the United States

Author: Lee Rodegerdts

Publisher: Transportation Research Board

Published: 2007

Total Pages: 125

ISBN-13: 0309098742

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"Research sponsored by the American Association of State Highway and Transporation Officials in cooperation with the Federal Highway Administration."

Guidance for Implementation of the AASHTO Strategic Highway Safety Plan
Guidance for Implementation of the AASHTO Strategic Highway Safety Plan

Author: Forrest M. Council

Publisher: Transportation Research Board National Research

Published: 2008

Total Pages: 116

ISBN-13:

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TRB's National Cooperative Highway Research Program (NCHRP) Report 500, Vol. 21: Guidance for Implementation of the AASHTO Strategic Highway Safety Plan: Safety Data and Analysis in Developing Emphasis Area Plans provides guidance on data sources and analysis techniques that may be employed to assist agencies in allocating safety funds.