No Boundaries

Transportation Maintenance Innovation

Katie Johnson

Highlights from No Boundaries’ Spring 2025 Peer Exchange

No Boundaries members met in Portland, Maine last week from April 29 – May 1 for the group’s spring peer exchange, hosted by MaineDOT. Members shared their latest innovations and best practices for getting maintenance work done faster, better and cheaper.

The peer exchange also featured roundtable discussions on what states’ maintenance crews use for their sign repair and replacement work and hauling skid steers, as well as hot-button transportation topics such as how changes at the federal level are affecting maintenance activities for states.

Featured presentations included an overview of Maine’s innovation program and the Federal Highway Administration’s Strategic Workforce Development program, and a demonstration of an innovative culvert adaptation designed to increase flow capacity and reduce maintenance.

Finally, No Boundaries’ always-popular Innovation Show-and-Tell provided a forum for members to share the new tools and practices their agencies have found for making maintenance work easier and safer in the field.

Additional information, photos and the full agenda are available on the meeting page.

Image source: No Boundaries

Innovative Solutions for Making Work Zones Safer

In honor of National Work Zone Awareness Week, which takes place this week from April 21-25, we’ve rounded up a few of the innovative solutions that No Boundaries member states have recently shared to make working in and around traffic less hazardous for their highway maintenance crews.

  • Automated Flagger Assistance Device. Missouri DOT field tested this device on a two-lane work zone and found that drivers behaved better than with a traditional flagger. Learn more.
  • Night Light Safety Lighted Vests. Connecticut DOT’s maintenance workers wear rechargeable lighted vests when working in and around traffic at night to improve their visibility. Learn more.
  • RAPTOR Temporary Rumble Strip Placer. Maryland DOT uses portable rumble strips to remind drivers to slow down in and around work zones. The RAPTOR vehicle attachment allows rumble strips to be placed and retrieved quickly and easily. Learn more.

Share your agency’s innovative products and ideas and explore others’ solutions on No Boundaries’ searchable Innovations Database.  

No Boundaries Members Featured in New Issue of Innovator

The March/April 2025 issue of Innovator, the bimonthly newsletter of the Federal Highway Administration (FHWA), highlights the efforts of several No Boundaries member states.

The California Department of Transportation (Caltrans) was noted for its contributions to the California Road Sharing (CaRS) program, a collaborative effort that establishes a framework for local agencies to integrate road data into Caltrans’ records to create a statewide dataset. 

Ohio Department of Transportation’s (DOT’s) Highway Safety Improvement Program was lauded for its work to reduce the risks of serious and fatal crashes by identifying areas where these types of crashes are most likely and prioritize projects that mitigate the risks.

Finally, South Carolina, Missouri and Colorado were all recognized for putting innovations into practice. South Carolina DOT has worked to increase public engagement by developing a virtual reality public hearing room and offering other opportunities for community members to participate in transportation-related discussions and decisions. The Missouri DOT has developed a crowdsourcing tool that leverages public input to identify pothole locations so they can be located and fixed quickly. And Colorado DOT’s use of innovative project delivery methods, including project bundling and design-build strategies, has allowed the agency to complete a bridge construction project in less time and for less cost than planned.

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

Image source: FHWA

Indiana Evaluates Local Agencies’ Asset Management Plans

An asset management plan (AMP) can help transportation agencies keep track of maintenance needs and prioritize investments.

To support Indiana’s local transportation agencies and ensure they manage their transportation assets effectively, the State of Indiana passed a law in 2016 requiring each local transportation agency to develop an asset management plan as a condition of special funding.

To evaluate the agencies’ progress, the Indiana Department of Transportation launched a research study to survey the types of asset management plans that have been created.

Read the report: Assessing the Asset Management Programs of Locals: Bridges and Pavement Conditions, January 2025.

Image source: Indiana Department of Transportation

Missouri Evaluates Countermeasures for Improving Attenuator Driver Safety

Truck-mounted attenuators (TMAs) are designed to protect workers in highway work zones by absorbing crashes.  

But as TMAs are being struck more frequently, the safety risks to TMA drivers have increased. To investigate ways to protect its TMA drivers and mitigate the hazards, the Missouri Department of Transportation initiated a research study that evaluated a variety of safety countermeasures.

Read the report: TMA Truck Safety, March 2025.

Image source: Missouri Department of Transportation

California to Host Webinar on Roadway Crossings for Sensitive Animals

When crossing a roadway, small animals like amphibians and reptiles have a high risk of being struck and killed by passing vehicles.

To discuss strategies for helping these sensitive animal populations get where they’re going more safely, the California Department of Transportation (Caltrans) will host a webinar, “Roadway Crossings for Sensitive Amphibians and Reptiles” on April 2 from 4 p.m. – 5 p.m. Central.

Learn more and register.

Image source: Caltrans