This article was originally published in Catalyst, May 2022.
Photos and stories about people biking and walking on packed trails were common during the early stages of the COVID-19 pandemic. Transportation researchers also reported surges in bicycling and walking during this time of social restrictions and widespread closures, but little was known about how those surges related to longer-term trends.
This article was originally published in Catalyst, May 2022.
Displaying the highway death toll on message boards is a common awareness campaign, but new research from the University of Toronto and University of Minnesota indicates this tactic may actually lead to more crashes.
Over the years, dozers have been the desired tool for pushing snow drifts back along highways. While dozers work well, they are limited by the drivability between drift locations.
As the COVID-19 pandemic restrictions in 2020 kept people at home, reduced travel and, therefore, traffic congestion were to be expected. But how much of an impact did the restrictions have on traffic congestion? After analyzing changes in traffic levels due to the COVID-19 pandemic travel restrictions, researchers identified how incremental changes in vehicle miles traveled impact regional congestion. These results will inform efforts by MnDOT and its partners on the outcomes of reduced travel demand.
After road construction, soil in revegetation areas must retain adequate stormwater and provide stable embankments along the road. Revegetation can be challenging due to thin topsoil, and it often requires importing healthy organic soil and exporting excess construction soil generally unsuitable for plant growth.
Maintaining Minnesota’s 14,000 miles of pavement is challenging, especially with the growth in traffic volume resulting in system needs that exceed available funding. New ways to characterize pavement conditions and methodologies to determine the optimal maintenance schedule for individual road segments will allow planners to optimize resources while providing the highest possible ride quality across the pavement network.
With the number of automated vehicles increasing on our roadways it is important to understand their potential impacts and how other road users will interact with them. In the future, there will be a more pronounced shared levels-of-automation transportation network, with fully manual, partially automated, and fully automated vehicles sharing the same Minnesota roads. While planners and engineers have a reasonable idea of how humans drive around other humans, what is not as well-known is human driving behavior around automated vehicles.
Transportation is a crucial contributor to health: it not only directly shapes the social and physical environments in myriad ways, but it also determines the types of places where people can live, learn, work, and play in their everyday life.
MnDOT’s existing and future assets will become increasingly stressed by extreme weather patterns due to climate change. Minnesota’s assets are particularly vulnerable to projected precipitation increases and larger and more frequent extreme storm events.
Providing consistent freeway travel times for Twin Cities area drivers requires careful traffic management and well-planned freeway projects. To effectively respond to incidents and identify the most needed renovations, MnDOT traffic managers need to know precisely where, when and why congestion is happening.
Crossroads 