Lower speed limits may not slow drivers, a before-and-after study shows

A before-and-after study of speed changes in one Minnesota city shows that changing posted speed limits may not—at least initially—cause drivers to slow down. This new finding is important for Minnesota’s state and local transportation agencies as they continuously search for the most effective ways to reduce unsafe speeds and meet their Toward Zero Deaths safety goals. The study is available through the University of Minnesota Center for Transportation Studies at https://www.cts.umn.edu/news/2024/march/speed