National Cooperative Highway Research Program

Cambridge Systematics

Parsons Brinckerhoff

Edward P. Chait

TRB¿s National Cooperative Highway Research Program (NCHRP) Report 608: GASB 34¿Methods for Condition Assessment and Preservation examines methodologies that integrate infrastructure inventory, condition assessments, minimum acceptable condition levels, and funding decisions with Governmental Accounting Standards Board (GASB) Statement No. 34 reporting requirements. The report also examines the operational and financial impacts of reporting under GASB 34. NCHRP Report 608 updates the findings contained in NCHRP Report 522: A Review of DOT Compliance with GASB 34 Requirements.

GASB 34--methods for Condition Assessment and Preservation

Kathleen Theresa Hall

James A. Crovetti

NCHRP Report 583 explores the effects of subsurface drainage features on pavement performance through a program of inspection and testing of the subsurface drainage features present in the Long-Term Pavement Performance SPS-1 (flexible hot-mix asphalt pavement) and SPS-2 (rigid portland cement concrete pavement) field sections.

Analysis of the SPS-1 and SPS-2 Field Sections

Effects of Subsurface Drainage on Pavement Performance

Chai Hong Yoo

Dann H. Hall

Michael A. Grubb

Improved Design Specifications for Horizontally Curved Steel Girder Highway Bridges

J.-L. Briaud

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

Pier and Contraction Scour in Cohesive Soils

Kenneth H. McGhee

At head of title: National Cooperative Highway Research Program.

Automated Pavement Distress Collection Techniques

Timothy R. Neuman

Also available online via the Web pages of the TRB Cooperative Research Programs (www4.trb.org/trb/crp.nsf).

Guidance for Implementation of the AASHTO Strategic Highway Safety Plan: A guide for addressing collisions involving unlicensed drivers and drivers with suspended or revoked licenses

Richard Gerhard Dowling

Final Report and User's Guide

Predicting Air Quality Effects of Traffic-flow Improvements

Charles W. Roeder

John F. Stanton

T. Ivan Campbell

High-load Multi-rotational Bridge Bearings

Booz, Allen & Hamilton

Introduction -- Get started and achieve buy-in -- Understand requirements for the EIM&DSS -- Absorb the vision for the EIM&DSS -- Assess existing capabilities -- Assess the evolution of technology -- Identify alternative migration paths -- Develop phased implementation plan -- Implement each phase using software development lifecycle methodology -- Acronyms and abbreviations -- Bibliography.

Implementation Handbook

Environmental Information Management and Decision Support System

H. G. Russell

Concrete Bridge Deck Performance

Peter Frederick Lagasse

Explores practical selection criteria for bridge-pier scour countermeasures; guidelines and specifications for the design and construction of those countermeasures; and guidelines for their inspection, maintenance, and performance evaluation. Produced along with the report is an interactive version of the countermeasure selection methodology, which defines the proper conditions for the use of each specific countermeasure, and a reference document that contains detailed laboratory testing results and translations of three German "Code of Practice" documents.

Countermeasures to Protect Bridge Piers from Scour

Synthesis of Highway Practice

Eugene Russell

Margaret Joanna Rys

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 339: Centerline Rumble Strips (CLRS) examines current design, installation, configuration, dimension, and visibility issues associated with CLRS. The report addresses the need for guidance on warrants, benefits, successful practices, and concerns such as external noise and the reduced visibility of centerline striping material. Also addressed are pavement deterioration, ice buildup in the grooves, adverse impact on emergency vehicles, and the effect of CLRS on bicyclists. Particular attention was paid to available before-and-after CLRS installation crash data to document the safety aspects of CLRS and the availability of policies, guidelines, warrants, and costs regarding their use and design.

Centerline Rumble Strips

Hayes E. Ross

Evaluation of Roadside Features to Accommodate Vans, Minivans, Pickup Trucks, and 4-wheel Drive Vehicles

Lee August Rodegerdts

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.

An Informational Guide

Roundabouts

Carlos Sun

Douglas W. Harwood

Passing Sight Distance Criteria

Patrick Casey

Andrea Thomas

James S. Thiel

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 416: Implementing Race-Neutral Measures in State Disadvantaged Business Enterprise Programs explores race-neutral strategies being used effectively by state departments of transportation (DOTs) to meet their Disadvantaged Business Enterprises (DBE) participation goals. It also reviews and synthesizes problems faced by state DOTs in the administration of their DBE programs and identifies race-neutral remedies used to overcome these challenges. As state DOT's carry out their highway construction programs, they are required to direct a portion of their federal-aid fund expenditures toward small businesses called DBEs. A DBE is defined as a small, for-profit business concern that is at least 51% owned and controlled by one or more socially and economically disadvantaged individuals. States are required to meet the maximum feasible portion of their DBE participation goals using race-neutral means designed to remove barriers and enhance opportunities for all small businesses, not just DBEs.

Implementing Race-neutral Measures in State Disadvantaged Business Enterprise Programs

Arthur C. Parola

Highway Infrastructure Damage Caused by the 1993 Upper Mississippi River Basin Flooding

National Cooperative Highway Research Program

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