07/12/2024
Roundabout intersections, represent a 90% reduction in fatalities, 76% fewer injuries and a 30%-40% fall in the number of accidents involving pedestrians, the state says, adding that roundabouts also increase road capacity by up to 50%.” In residential neighborhoods, roundabouts need be nothing more than a couple of circles in the middle or a small flower pot. Space is not an issue. OR A roundabout need be "nothing more than a slightly domed area of paint on the road, no lights are necessary, you can actually drive straight over the top of it rather than around it, its main purpose is simply to dictate who has right of way so that everyone knows who should yield and who should go.
"In a busy town or city environment, roundabouts do not work well because excessive traffic from one direction with right of way can completely stop all other traffic causing congestion in other directions. Some roundabouts have lights or peak-time signals to prevent this. One great thing is that they're easy to modify (adding lights, making it mini (drive-overable), adding another entry-point, etc. Everywhere other than in busy grid-based towns/cities they are ideal."
Roundabouts are transforming road safety in the US as cities grapple with the rising toll of death and injuries at intersections with traffic lights.