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FHWA Home / OIPD / Accelerating Innovation / Every Day Counts / EDC News: August 5, 2021

EDC News

August 5, 2021

Innovation of the Month:
Targeted Overlay Pavement Solutions

More than 40 percent of major roads in the United States are in poor or mediocre condition. The U.S. Department of Transportation’s 2015 Conditions & Performance Report estimated that America needs more than $800 billion to fix highways and bridges. By enhancing overlay performance in priority locations, State and local highway agencies can help ensure safer, longer-lasting roadways.

Improved overlays are now available for both asphalt and concrete pavements that enable agencies to provide long-life performance under a wide range of traffic, environmental, and existing pavement conditions. FHWA’s Targeted Overlays Pavement Solutions initiative, known as TOPS, encourages agencies to maximize their investment by using overlays in high-maintenance locations such as primary or interstate pavements, intersections, bus lanes, ramps, and curves.

The TOPS team is promoting eight asphalt overlays and two types of concrete overlays that offer many benefits. These overlays reduce maintenance, maximize previous investments through extended service life of pavement structures, and reduce user delays (fewer work zones). In addition, certain overlays increase skid resistance, improve resiliency in flood-prone areas, reduce splash and spray, and reduce noise.

Paving road using asphalt overlay mixtures
Asphalt overlay mixtures such as stone matrix asphalt, polymer-modified asphalt, and other materials and agents reduce rutting, increase cracking resistance, and extend pavement life. (Credit: Applied Research Associates)

Asphalt Overlays

Asphalt rubber gap-graded

Enhanced friction overlay

Highly modifiedasphalt

High-performance thin overlay

Crack attenuating mix

Open-graded friction course

Stone matrix asphalt

Ultra-thin bonded wearing course

                                
Crew paving road using concrete overlay mixures.
Concrete overlays now benefit from performance-engineered mixtures and new design procedures that improve durability and performance. (Credit: American Concrete Pavement Association)
        

Concrete Overlays

Concrete on Asphalt

Bonded

Unbonded

Concrete on Concrete

Bonded

Unbonded

The TOPS team provides technical assistance to help transportation agencies select the right overlay product for the right location. The team has created fact sheets on different types of overlays and will release several case studies and how-to documents later this year. View the TOPS EDC overview video and stay tuned for information on additional webinars and workshops.

To learn more about Targeted Overlay Pavement Solutions, contact Tim Aschenbrener (asphalt) and Sam Tyson (concrete), EDC-6 team co-leads or visit the team's EDC website. To stay connected with the TOPS team, join their mailing list to receive updates and new resources as they become available.

EDC Outtakes – TOPS

In EDC Outtakes–a series of short interview videos–State practitioners and FHWA personnel give insight into the current round of EDC innovations. In our latest edition, Tim Aschenbrener, TOPS team co-lead, discusses the need for TOPS and some of the benefits targeted overlays can bring agencies.

Targeted Overlay Pavement Solutions (TOPS) logo - Tim Aschenbrener, Federal Highway Administration

NCDOT Engages Mapping and Navigation Providers for Improved Traveler Information

The North Carolina Department of Transportation (NCDOT) has embraced crowdsourcing as a way to exchange real-time traveler information with road users in times of natural disaster. During Hurricanes Michael and Florence in 2018, North Carolina roads experienced unusual flooding and road closures. Realizing that mapping and navigation providers were not publishing accurate road closure information, the NCDOT set out to improve the way they engage navigation providers with timely and accurate information. NCDOT identified key points of contact with each provider and maintains relationships that can then be leveraged during emergencies. Because of their efforts, stakeholders now enjoy the benefits of better mapping information for closures, traffic incidents, new roadways, and truck routing.

To learn more about how crowdsourcing can help your agency improve traffic operations, contact James Colyar, Greg Jones, or Ralph Volpe with the FHWA Office of Operations.

EDC Safety Summit Series- Registration Now Open

Safety innovations have been a cornerstone of the EDC program since 2011, resulting in their rapid deployment and institutionalization, and the upcoming EDC Safety Summit Series will build on that momentum.

September calendar with each Wednesday highlighted. At right, text reading, 'Register Now! Every Day Counts Safety Summit Series. Every Wednesday in September 10 am to 2 pm, Eastern time.'

The summit series will highlight seven safety innovations and share how they can save lives. It will include opportunities to discuss hot topics with peers and establish relationships that can boost success now and in the future.

Register here for the summit, which will take place from 10 am to 2 pm ET each day and is open to all State, local, and tribal stakeholders. Participants can join for one or all five Wednesdays. Contact Karen King, FHWA Virginia Division, for additional information.

Stay Up to Date on the EDC Innovations That Interest You Most

EDC teams are always on the move! If you blink, you could miss out on important webinars, case studies, tools, videos, and more. To never miss information for the EDC innovations that interest you most, visit the subscription page and select the topics you’d like to receive updates on directly from the teams that coordinate them.

Recent bulletins:

Crowdsourcing for Advancing Operations – 7/29/21

Road Weather Management – 7/23/21

A-GaME – 7/23/21

Center for Local Aid Support – 7/22/21

Upcoming Events

Reducing Roadside Obstacles
August 12, 2021, 1:00-3:00pm ET Register

Project Bundling: The Business Process
August 17, 2021, 2:00-3:00pm ET Register

More Events >>

About EDC

Every Day Counts, a state-based initiative of the Federal Highway Administration's Center for Accelerating Innovation, works with state, local and private sector partners to encourage the adoption of proven technologies and innovations to shorten and enhance project delivery.

EDC News is published weekly by the FHWA Center for Accelerating Innovation.

Recommended Citation:
U.S. Department of Transportation, Federal Highway Administration Every Day Counts: Innovation for a Nation on the Move
EDC News: August 5, 2021 Washington, DC:
https://doi.org/10.21949/1521801

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Contact


Jeffrey A. Zaharewicz
Senior Advisor
(202) 366-1325
Jeffrey.Zaharewicz@dot.gov


Page last modified on August 6, 2021
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000