This week is Wildlife Casualty Count Week of Action in Minnesota. It highlights the impacts transportation systems have on wildlife and raises awareness of wildlife deaths resulting from vehicle collisions. Information about this effort can be found at: Wildlife Casualty Count Week
At MnDOT, we are committed to protecting wildlife through established practices and thoughtful planning. MnDOT works to minimize and mitigate impacts to protected fish, wildlife, and plant species in the design and construction of transportation projects. Read more about MnDOT’s commitment to protected species here: Wildlife – Environmental Stewardship
MnDOT’s Office of Research & Innovation supports research projects that advance wildlife protection and environmental conservation. These projects help inform how wildlife considerations are incorporated into transportation planning and construction. Explore projects guiding this work below:
To assess pavement conditions throughout the state, the Minnesota Department of Transportation (MnDOT) uses a van specially equipped with advanced technology that measures roughness, cracking, and other signs of distress on a roadway’s surface. That system has its limitations, however. The vans cost about $800,000 each, and the data collection requires extensive coordination, trained personnel, and sensitive equipment that is limited to operating in warmer summer months. In addition, the data collection takes place once a year on MnDOT routes and every other year on County State Aid Highways.
Mn/DOT’s Pathway Services, Inc. Digital Inspection Vehicle (DIV)
Could there be a more efficient and more timely way to assess the state’s road pavement conditions? To find out, researchers at the University of Minnesota (UMN) explored whether data already being generated by everyday vehicles could enhance MnDOT’s current method.
To test this, UMN researchers equipped study vehicles with a simple plug-in scanner that captured onboard diagnostics data, explains CTS scholar Raphael Stern, the project’s co-investigator and UMN associate professor of civil, environmental, and geo- engineering. Modern vehicles already have sensors that collect this data, which can be used to monitor and optimize vehicle performance. That same data could provide clues to how a vehicle is responding to pavement beneath it, he says.
“If we could show that this can be done in Minnesota, MnDOT or local agencies can implement this technology,” says lead investigator and CTS scholar Mihai Marasteanu. “They could have a very good idea about the conditions of pavement every day—not just once a year.”
For this project, researchers adapted methodologies from Denmark’s Live Road Assessment (LiRA) project, considered to be the most comprehensive effort to use onboard vehicle sensors for continuous pavement monitoring. That initiative provided insights into both the technical feasibility and practical challenges of extracting meaningful pavement quality metrics from standard vehicle data.
Researchers tested a similar approach on three routes in Minnesota to capture a diverse range of pavement conditions under real-world driving scenarios. One route was a 15-mile loop in the northeast Twin Cities metropolitan area that covered urban and suburban road segments with consistent traffic flow. Another was a 96-mile loop between Minneapolis and Northfield, comprising a mix of urban, suburban, and rural roadways. The third was the 2.6-mile loop at MnROAD, MnDOT’s research facility near Albertville.
The plug-in scanner collected data on vehicle location, speed, and 3D acceleration; the last measures the intensity and complexity of vibrations transmitted from the road through the vehicle’s suspension system.
Across the three routes, researchers collected more than 9,000 data points. Machine learning models used 694 data values to predict pavement quality using the International Roughness Index (IRI) for a given pavement section.
Researchers compared and validated predictions against data from MnDOT and a commercial pavement‑monitoring system. Results demonstrated a correlation across diverse road conditions, although accuracy decreased in areas where pavement conditions changed quickly or road surfaces had defects. Predictions were also more accurate on highway segments than local roads because of variable urban driving environments.
Of the eight learning models evaluated, one achieved 94 percent accuracy on predicting pavement roughness. The performance of each model varied based on environmental factors, data collection conditions, and road types.
The research successfully demonstrated that vehicle sensor data can effectively support continuous infrastructure monitoring, Marasteanu says. “It could save money in the long run and give a much more accurate representation of pavement conditions over the entire year,” he notes.
The project, funded by MnDOT, included implementation guidelines for large-scale deployment, equipment standardization protocols, data-processing pipelines, and risk-mitigation strategies.
MnDOT is now exploring how to extend the research beyond the study vehicles, says Curt Turgeon, director of MnDOT’s Office of Materials and Road Research. One way will be to use commercial data sources that already collect similar information from everyday vehicles. For example, NIRA Dynamics, headquartered in Sweden, partners with automakers Volkswagen and Volvo to collect anonymized sensor data from consumer vehicles. These data streams are captured continuously throughout the year.
“MnDOT has a contract with NIRA to determine how this data might enhance our pavement management decisions as well as potentially document snow and ice response,” he says. “They also have a module that may flag potholes or other in-road hazards based upon vehicles swerving.”
Improving pedestrian safety requires a deeper understanding of how people interact with roadway design and infrastructure. This webinar will highlight two recent research efforts examining how transportation infrastructure influences driver behavior and pedestrian safety outcomes.
Curtis Craig, a research associate in the Human Factors Safety Laboratory, will present findings from two complementary studies examining infrastructure at intersections. The first study explored how right turn lane configurations affect pedestrian safety using a combination of behavioral analysis and multiple research methods. The second project examined how drivers and pedestrians respond to different infrastructure treatments and how those designs influence behavior in real-world environments.
These study findings offer transportation agencies, planners, and engineers practical considerations as they work to create safer and more accessible pedestrian environments.
Registration and More
This webinar is free, but registration is required.Visit the event web page to register and for more information.
Transportation capital investment planning plays a vital role in shaping the future of infrastructure—but often leaves people with disabilities, youth, older adults, people of color, and disadvantaged communities underserved. A recent UMN research project aimed to gain a better understanding of how to include equity in planning and decision making.
To gain a better understanding of how to include equity in planning and decision making, a recent research project explored this complex topic through a literature review, statewide survey, and analysis of case studies. This research, sponsored by the Minnesota Department of Transportation (MnDOT) and the Minnesota Local Road Research Board, resulted in considerations and strategies, including a toolkit, to increase community engagement and guide future transportation development for Minnesota localities and Native nations.
Camila Fonseca-Sarmiento, director of fiscal research for the Institute for Urban & Regional Infrastructure Finance at the University of Minnesota’s Humphrey School of Public Affairs and a CTS scholar, led a team of researchers through a review of case studies for which equity was included in capital investment planning. As in other states and localities across the United States, the team found that the definition of equity and the goals of equity-related funding ranged widely across Minnesota’s counties, cities, and Native nations.
Incorporating equity factors in transportation investment planning in Minnesota has occurred through small, incremental changes. A few jurisdictions have already integrated equity into their planning efforts, while some others are in the process of doing so. Jurisdictions with a more comprehensive equity framework are those in which equity is part of a local initiative, compared to those who mentioned equity efforts as a response to federal funding requirements, such as Title VI of the Civil Rights Act of 1964 and the Americans with Disability Act.+6
Minnesota brings an additional set of equity considerations through the inclusion of the state’s 11 Native nations. These Ojibwe and Dakota communities and reservations share many of the same needs and challenges as other localities but also possess unique cultural considerations, including sovereignty, sacred sites, and environmental protection. For example, on a practical level equity for Native nations means fair employment—equitable job opportunities, wages, and hiring preferences for tribal members to ensure benefits stay within the tribal nations on or near reservations. On a cultural level it means dual language signage for English and Ojibwe or Dakota on roads and highways that traverse Native lands.
“Equity is not a one-size-fits-all approach,” Fonseca-Sarmiento says. Engaging community members early in the planning process helps planners understand transportation needs beyond roadway investments—such as a community’s historical experience, culturally specific needs, and current gaps. The research findings offer guidance on how to gather local input through surveys and in-person meetings guided by trained staff.
The transportation capital investment planning and decision-making process consists of several phases where equity could be integrated: identifying projects, prioritizing capital investment projects through multi-step processes, and selecting projects for funding through community advisory committees.
A toolkit developed by the researchers could help improve communication and engagement with underserved communities. Its two key tenets are that agencies need to proactively reach out to the community, and trust-building is essential for effective relationships.
In addition, Dillon Dombrovski, deputy public works director/city engineer with the City of Rochester and the project’s technical liaison, says the community engagement toolkit “provides effective guidance to combine community input with supporting data to invest in more equitable transportation projects.”
Fonseca-Sarmiento says it’s also critical to listen and then include diverse perspectives in the final transportation plan. “Engaging local stakeholders in the planning process but then leaving them out of the finished project decreases trust and limits future engagement,” she says. “Overall, having regular community engagement for identifying transportation capital investment projects can also help prevent perpetuating past inequities.”
Treating roads with deicers during winter storms is essential for ensuring the safety of the traveling public. However, salt runoff can negatively impact the environment. In-ditch salt capture techniques may limit the migration of salt from roads into watersheds.
Tuesday, April 21, 2026 noon–1:30 p.m. CDT, Virtual
About the Event
Understanding how infrastructure materials perform over time is critical to making informed design, construction, and maintenance decisions. This webinar will feature two recent University of Minnesota research efforts that examined the real-world performance of commonly used transportation infrastructure materials.
Culverts are essential components of urban and rural infrastructure that guide and channel water under roads and embankments. The most common failure affecting culverts is joint separation between segments of the concrete pipes. This project examined the predictors and factors that lead to joint separations in culverts to determine practices that will decrease future separations.
Transportation policy and energy markets are evolving rapidly as states explore strategies to reduce emissions and support new fuel technologies. This webinar will examine two current policy areas shaping transportation systems: electric vehicle infrastructure development and low-carbon fuel standards.
Beth Kallestad from MnDOT’s Office of Sustainability and Public Health will provide an overview of Minnesota’s Electric Vehicle Infrastructure Program. Her presentation will discuss how the Infrastructure Investment and Jobs Act and NEVI funding have shaped the development of EV infrastructure in Minnesota, the program’s current status, and what to expect in the next phase of implementation.
Monica Haynes and Neil Wilmot from the University of Minnesota Duluth will highlight a 2025 study that examined the relationship between low-carbon fuel standard (LCFS) programs and gasoline prices. They will explore how LCFS programs in other states have affected retail fuel costs and discuss the challenges of predicting the economic impacts of a potential LCFS program in Minnesota.
Through these presentations, webinar attendees will gain insights into how emerging transportation energy policies influence infrastructure planning and economic outcomes.
Speakers
Beth Kallestad is the sustainable transportation planning director with MnDOT’s Office of Sustainability and Public Health. She has a wide range of experience in the environmental field, including in the private, government, academic, and nonprofit sectors. This experience has given her a strong background in the management and implementation of a variety of sustainability planning efforts, public and stakeholder engagement, effective communications, trust building, and collaboration. Beth joined MnDOT in June 2022 and has focused her work on the development and implementation of the EV infrastructure program with federal NEVI funding and supporting MnDOT’s internal fleet transition.
Monica Haynes has served as the director of the Bureau of Business and Economic Research at the University of Minnesota Duluth since 2014, supervising a small team of student researchers and a writer/editor. During her time in this role, the department has completed more than 90 funded research projects on a wide range of topics related to current events, proposed development opportunities, and economic trends. She also serves as adjunct faculty in the Labovitz School of Business and Economics (LSBE), as chair of LSBE’s outreach committee, and on the Duluth Workforce Development Board.
Neil A. Wilmot is an associate professor and head of the Department of Economics and Health Care Management, Labovitz School of Business and Economics, at the University of Minnesota Duluth. He is also an associate of the Institute on the Environment at the University of Minnesota. Wilmot’s research interests include energy economics and energy commodities, encompassing a wide range of topics including oil and gas markets, renewable energy integration, and energy pricing mechanisms. He has published numerous articles in leading energy economics journals, including Energy Economics, Resource and Energy Economics, and The Energy Journal.
Registration
This webinar is free, but registration is required. Once you have registered, you will receive an email confirmation with a Zoom link. The link should not be shared with others; it is unique to you.
To enhance pedestrian safety at intersections, transportation agencies may install temporary or permanent infrastructure such as curb extensions or pedestrian refuge islands. While more permanent infrastructure with concrete is generally considered effective, specific details about temporary infrastructure with flexible delineators (or bollards), such as installation, use and safety impact, would be valuable to optimize cost-effectiveness. This project evaluated both temporary and permanent pedestrian infrastructure at crossing sites to measure the effects on pedestrian safety and driver behavior.
Cold recycling road pavement materials into new road construction is a cost-effective and sustainable practice. However, the properties of these materials must be characterized to adequately design pavement structures. This project developed a framework and tool for transportation agencies to estimate the key material properties of cold recycled materials incorporated into road designs.
Crossroads 