Category Archives: Research

General research posts.

Smartphone-Based Coaching for New Teen Drivers May Offer Long-Term Benefits

This article was originally published in Catalyst, August 2020.

More than five years ago, U of M researchers studied a group of new teen drivers to gauge the effects of real-time, in-vehicle coaching with their innovative Teen Driver Support System (TDSS) smartphone application. Now, a follow-up study offers new understanding about the system’s long-term effectiveness in reducing risky driving behavior.

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Link Between Air Quality, Happiness Could Guide Infrastructure Decisions

This article was originally published in Catalyst, August 2020.

By connecting measures of happiness to transportation, researchers are developing new metrics that can help cities prioritize infrastructure investments. In a new study, a research team that included Humphrey School of Public Affairs professor Yingling Fan found that air quality appears to be linked with a variety of emotional well-being (EWB) outcomes.

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MnDOT Announces COVID-19 Research Funding

The COVID-19 crisis has affected every aspect of the transportation systems, with state DOTs and local agencies at the forefront of responding to changes, while continuing to meet core missions of providing safe, efficient, and effective transportation systems. To proactively respond and inform future decision-making related to COVID-19’s impact on the transportation sector, MnDOT is investing in research to answer questions specific to the impact of the COVID crisis on Minnesota’s transportation system.

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Promoting Snow Fence Adoption in Minnesota

A new research study has shown that few landowners know about MnDOT’s snow fence program, its benefits to community safety and mobility, and incentives to install snow fences. Following community meetings and surveys in four regions of Minnesota, researchers identified promising promotional methods for the snow fence program, the constraints landowners face in adopting snow fences, and incentives and assistance to improve snow fence adoption. Project results will guide MnDOT’s efforts to expand the use of snow fences around the state

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Optimal Sight Distances at Rural Intersections

A new study sponsored by the Minnesota Local Road Research Board has identified 1,000 feet as an optimal sight distance for allowing drivers to make better crossing decisions at rural intersections. Researchers used a state-of the-art driving simulator to examine drivers’ ability to judge traffic speed and gaps between cars at unsignalized intersections with varying sight distances.

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Implementing CIM in Preliminary Design of Infrastructure

Using an existing county road project as context, researchers examined the digital technologies and processes associated with civil integrated management (CIM). A comparison of CIM with the traditional methods used in the proposed county project demonstrated the advantages of CIM.

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Using Debonded Strands to Reduce End Stress in Bridge Beams

A new MnDOT-funded research study has found that most agencies in states with weather similar to Minnesota’s use debonded strands in prestressed concrete bridge beams. MnDOT may begin piloting debonding as an alternative to draping, which manufacturers claim is time-consuming, challenging to worker safety and expensive.

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Collaboration with Minnesota Zoo aims to conserve wildlife

Turtles and other wildlife are at risk along Minnesota roadways.

MnDOT is collaborating with the Minnesota Zoo on a new research project installing small animal exclusion fencing. The fencing is intended to redirect turtles (and other small animals) to culverts and bridges where they can cross the road safely.

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