A companion Tech Brief (Ensuring Durability of Concrete Paving Mixtures-Part I: Mechanisms and Mitigation) describes the mechanisms responsible for materials-related distress (MRD) that can compromise the durability of concrete and outlines strategies to improve the durability of concrete paving mixtures. This Tech Brief builds on that Tech Brief,
...
This Tech Brief presents various distresses that can develop because of issues related to durability (commonly referred to as materials-related distress [MRD]) and describes strategies to prevent or mitigate each type of MRD. MRD can compromise the integrity of concrete and result in costly repairs and ultimately failure of a concrete pavement, eve
...
United States. Federal Highway Administration. Office of Asset Management, Pavements, and Construction
2016-04-01
|
PDF
This Technical Brief provides an overview of tack coats and their vital role bonding multiple asphalt layers into one monolithic system. Poor tack coat techniques result in compromised bonding of the asphalt layers. This leads to pavement distresses. Possible slippage cracking and delamination are associated with poor bonding. Additionally, poor bo
...
State transportation agencies (STAs) rely on implementing innovative new processes and technology for managing roadway assets; LiDAR surveys are one of these key enabling technologies. LiDAR surveys comprise an ever-evolving set of technologies that allow for a rapid, yet very accurate, collection of roadway asset data through a single effort which
...
Bridge Information Modeling Standardization is a multi-volume report that analyzes options for standardized approaches for modeling bridges across their life cycle. The goal of the report is to identify and evaluate candidate open standards that can be used to document all aspects of bridges to identify viable standards that can be used by bridge o
...
Bridge Information Modeling Standardization is a multi-volume report that analyzes options for standardized approaches for modeling bridges across their life cycle. The goal of the Report is to identify and evaluate candidate open standards that can be used to document all aspects of bridges to identify viable standards that can be used by bridge o
...
Bridge Information Modeling Standardization is a multi-volume report that analyzes options for standardized approaches for modeling bridges across their life cycle. The goal of the Report is to identify and evaluate candidate open standards that can be used to document all aspects of bridges to identify viable standards that can be used by bridge o
...
Speeding contributes to nearly one-third of all roadway fatalities, and this proportion has remained largely unchanged for the past decade. Since roadway departure, intersection, and pedestrian and bicycle crashes have been identified by the Federal Highway Administration (FHWA) as the three areas with great potential to reduce fatalities, States a
...
This study was conducted as part of the Federal Highway Administration (FHWA) Long-Term Bridge Performance (LTBP) Program in conjunction with the National Concrete Bridge Council. The LTBP Program is a long-term research effort, authorized by the U.S. Congress under the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for
...
Under the Every Day Counts (EDC) program, the Federal Highway Administration (FHWA) is promoting technologies and practices that can shorten the project delivery process, enhance durability and safety, reduce congestion, and improve environmental sustainability. The focus is on providing efficiency through technology and collaboration. This include
...
This document presents the Safety Management Plan for the THEA Connected Vehicle (CV) Pilot Deployment. The THEA CV PilotDeployment goal is to advance and enable safe, interoperable, networked wireless communications among vehicles, theinfrastructure, and travelers’ personal communications devices and to make surface transportation safer, smarter,
...
Successes in Stewardship is a Federal Highway Administration (FHWA) bimonthly newsletter highlighting current best practices in stewardship and environmental review from around the country.
This report summarizes the research projects undertaken at the National Surface Transportation Safety Center for Excellence (NSTSCE) under funding provided by the Federal Highway Administration (FHWA). FHWA was an important founding member of NSTSCE in 2006 and chaired the original stakeholders committee for several years. They maintained membershi
...
As part of traffic loading inputs, the Mechanistic-Empirical Pavement Design Guide (MEPDG), Interim Edition: A Manual of Practice requires detailed axle loading information in the form of normalized axle load spectra (NALS), number of axle per truck class and axle group types, and axle spacing inputs. These data are obtained from weigh-in-motion (W
...
The continuous green T (CGT) intersection is characterized by a channelized left-turn movement from the minor street approach onto the major street, along with a continuous through movement on the major street. The continuous through movement typically has a green through arrow indicator to inform drivers that they do not have to stop. Past researc
...
This study was conducted as part of the Federal Highway Administration (FHWA) Long-Term Bridge Performance (LTBP) Program in conjunction with the National Concrete Bridge Council. The LTBP Program is a long-term research effort, authorized by the U.S. Congress under the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for
...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.