Category Archives: research

General research posts.

CTS Webinar: How Infrastructure Shapes Driver Behavior and Pedestrian Safety

About the Event 

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. 

Related Reading

Active Research by Curtis Craig

Analysis and Risk Management of Motorcycle, Bicycle, and Pedestrian Crashes in Minnesota

Addressing disparities through more equitable transportation planning

Reprinted from CTS Catalyst April 16, 2026

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.”

Amy Goetzman, contributing writer

Related reading

CTS Webinar: Infrastructure Materials and Performance

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.

Continue reading CTS Webinar: Infrastructure Materials and Performance

CTS Webinar: EV Infrastructure and Fuel Policy—Understanding the Transportation and Economic Impacts

Thursday, April 23, 2026, 2:00–3:30 pm, Virtual

About the Webinar

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 EconomicsResource 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.

Related Reading

Transitioning to EV Fleets: Best Practices and a Decision Tool | MnDOT Digital Library

CTS Webinar: Species from Feces—A New Tool to Identify Bats in Culverts and on Bridges

Wednesday, April 22, 2026, 12:00–1:30 pm, Virtual

About the Webinar

Bats frequently use bridges and culverts as roosting habitat, creating challenges for transportation agencies working to balance infrastructure needs with environmental compliance. Traditional visual surveys can be limited, especially when bats are hidden within structures or present only intermittently. 

This webinar will highlight ongoing research exploring the use of DNA analysis from bat feces (guano) as a noninvasive method to identify bat species occupying culverts and bridges. Speaker Ron Moen will discuss how this approach works, share early findings from field applications, and explore how the results could support more efficient environmental review, project planning, and species protection efforts for transportation agencies.

It is being held in conjunction with a CTS Environment and Energy in Transportation Council meeting.

Speaker

Ron Moen is an associate professor in the Department of Biology at the University of Minnesota Duluth and a senior research associate with the Natural Resources Research Institute’s Center for Water and the Environment. His research focuses on mammalian ecology, including habitat use, movement patterns, and predator–prey interactions, often using GPS radiotelemetry. His current work includes studies on moose, Canada lynx, American marten, wood turtles, bats, and other wildlife, as well as projects related to climate change impacts and carnivore monitoring in the Upper Midwest.

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.

Follow the Research

Species From Feces: A New Tool to Identify Bats in Culverts and on Bridges

Call for Presentations: 2026 CTS Transportation Research Conference

The Center for Transportation Studies at the University of Minnesota has called for speakers. If you have recently completed or participated in an innovative transportation-related research, implementation, or engagement activity, consider sharing your work in a presentation at the 2026 CTS Transportation Research Conference!

Continue reading Call for Presentations: 2026 CTS Transportation Research Conference

TRB Webinar: Improving Mobility in Rural and Tribal Communities

February 25, 2025, 10-11 AM CST

TRB is offering a free webinar tomorrow on rural mobility, which has been a focus of a number of MnDOT studies in the last few years. For a review of research on rural mobility in Minnesota, see the following lists of completed and active projects. To register for the webinar, follow the link above.

Continue reading TRB Webinar: Improving Mobility in Rural and Tribal Communities

New Project: Engineering Post-Construction Soil Composition to Support Resilient Stormwater Management

Post-construction soils can produce much higher stormwater runoff rates than pre-construction or typical vegetated soils. Poor soil conditions can hinder the establishment of vegetation and carry large volumes of runoff, sediment, and nutrient loads to local waters. Organic soil amendments (composts) may support post-construction vegetative growth by boosting soil structure, nutrient availability, and water holding capacity.

This research aims to define targeted pre-construction soil health baselines, determine optimized design and field implementation inputs that return soils to baseline health indices using organic amendments, and identify how these inputs can benefit transportation requirements and resilient stormwater treatment.

The results may facilitate the quantification of benefits provided through soil health restoration and the development of implementable guidance for roadside soil health restoration techniques.

“This research project will help us understand how implementing soil health practices can improve the performance of roadside vegetation establishment resulting in MnDOT being able to close out construction contracts and stormwater permits sooner,” said Warren Tuel, Natural Resources Program Coordinator with MnDOT’s Office of Environmental Stewardship. “There are also significant potential stormwater benefits of soil health practices including increased infiltration, improved treatment of pollutants present in highway stormwater runoff. The improved management of stormwater will result in improved water quality of runoff from MnDOT highway systems resulting in greater protection of the many water resources here in Minnesota.”

The objectives are:

  1. Evaluate resilience to water availability through organic amendment (e.g., compost) addition through greenhouse stormwater experiments
  2. Optimize amendment loadings based on resilience
  3. Develop a “recipe” for improving the health of poor soils based on soil health measurements, by amending the soil with compost or other organics

Project Details

  • Start Date: 05/16/2025
  • Estimated Completion Date: 06/30/2027
  • Funding: MnDOT
  • Principal Investigator: Bora Cetin
  • Co-Principal Investigators: Angela Farina
  • Technical Liaison: Warren Tuel

Details of the research study work plan and timeline are subject to change.

To receive email updates about this project, visit MnDOT’s Office of Research & Innovation to subscribe.

Comparing Salt Brine and Granular Salt for Safety and Performance

While studies have shown that salt brine can be less expensive and better for the environment than granular salt, public perception maintains that salt brine is less efficient and less safe for travelers.

In this Clear Roads project, researchers developed metrics for comparing the two different forms of salt and conducted a variety of tests to measure their performance in the field.

Now, agencies have data and infographics they can use to support their decision to use salt brine in place of granular salt.

Download the final report and two-page briefCR 22-04 – Evaluation of Direct Liquid Application of Salt Brine vs Granular Salt as Measured through Various Performance and Safety Metrics, December 2025.

Reprinted from Clear Roads news, January 21, 2026.

Pedestrian Safety Impacts of Dedicated Right-Turn Lanes

While research has found that right-turn-only, or dedicated right-turn lanes, at intersections reduce traffic delays and vehicle crashes, their impact on pedestrian safety has been unclear. To better understand these impacts for future intersection design and countermeasure considerations, this project investigated driver response to pedestrians in or near crosswalks at dedicated right-turn lanes. 

Continue reading Pedestrian Safety Impacts of Dedicated Right-Turn Lanes