Katie Johnson

State transportation agencies use transportation asset management plans to help manage and invest in the state’s infrastructure. The costs associated with future maintenance work, however, can be hard to predict.

To help maintenance teams identify and overcome these challenges, the Transportation Research Board will sponsor a webinar on April 23 from 1:00 p.m. – 2:30 p.m. Eastern.

View details about this webinar, and sign into MyTRB.org to register.

Image source: Indiana Department of Transportation

To encourage innovations that can help get a job done faster, better and more cost-effectively, many state transportation agencies have developed innovation programs that highlight the best and brightest ideas brought forward by agency staff.

These programs can take many forms, often incorporating formal and informal elements such as in-person events to showcase innovative tools and technologies, competitions to increase participation, and a variety of incentives to encourage submissions from staff.

No Boundaries has updated its list of states’ innovation programs. To add your state’s program to this list, please contact No Boundaries.

Image source: South Carolina DOT

The March/April 2024 issue of Innovator, the bimonthly newsletter of the Federal Highway Administration (FHWA), recognized the efforts of a number of No Boundaries member states.

Innovative solutions in Louisiana, California and Virginia were honored in 2023 by the Roadway Safety Foundation. The Louisiana Department of Transportation & Development used crash data to identify crash-prone locations and installed targeted mitigation strategies that reduced risks by 50 percent or more. The California Department of Transportation piloted a program to install proven safety countermeasures more quickly than through traditional funding mechanisms. Finally, the Virginia Department of Transportation (DOT) used a systemic analysis to proactively identify factors that contribute to crashes and implement countermeasures at high-risk sites.

Other notable state innovations in this issue include Michigan DOT’s system of adaptive signal control technologies that allows the agency to monitor traffic and make adjustments as needed, Mississippi DOT’s new highway roundabout that will be the first of its kind in the state, and Ohio DOT’s use of variable speed limits that will enable traffic management staff to make quick decisions in response to adverse weather conditions.

Sign up to get the next issue of Innovator delivered to your inbox.

Traffic loads, environmental conditions and other factors can make concrete bridge decks susceptible to cracking. But exactly why some types of cracks form – and how to diagnose and treat them – is not well understood.

The Illinois Department of Transportation sought to better understand the different kinds of cracks that can occur in concrete bridge decks, as well as determine which sealant would be most appropriate and cost-effective given the bridge’s regional climate and other considerations.

Read the report: Concrete Bridge Deck Crack Sealing, March 2024

Image source: Illinois Department of Transportation

There are a number of maintenance and preservation options available to help concrete pavements perform better and last longer, but choosing the treatment that will be most cost-effective and sustainable for a particular project can be a challenge.

To help maintenance teams identify appropriate treatments, the Transportation Research Board’s Standing Technical Committees on Design and Rehabilitation of Concrete Pavements will sponsor a webinar on March 18 from 2:00 p.m. – 3:00 p.m. Eastern.

View details about this webinar, and sign into MyTRB.org to register.

Image source: North Carolina Department of Transportation

Seasonal maintenance of roadside rights of way often overlaps with pollinator activities.

The New York State Department of Transportation initiated a research study to determine how modifying the state’s traditional mowing practices can affect pollinator populations and plants along the roadway.

Read the final report: Effects of a Modified Mowing Regime in NYSDOT ROWs on Pollinators and Vegetation, September 2023.

Image source: Texas Department of Transportation