PennDOT is touting another study that shows replacing dangerous intersections with roundabouts is leading to a fall in accidents.
The latest study looked at 47 roundabouts on state routes that were previously traditional intersections. It found that crashes involving injuries fell by 51 percent and the total number of rashes fell by 7 percent.
Over the last 20 years, PennDOT officials say there have only been two fatal crashes on roundabouts.