> Vanderbilt also argues that round-abouts may be safer than traditional stoplight intersections. Though traffic circles may seem confusing, they have fewer "conflict points," places where cars can physically hit an object or person. Intersections have 32 of these conflict points, where round-abouts only have 16.
https://www.npr.org/2008/07/28/92945220/navigating-the-science-and-sociology-of-traffic