MANKATO-September 26, 2012-(KMKO)-The first roundabout opens today in Mankato. The roundabout is located at Stadium Road and Victory Drive. Officials say roundabouts can handle high levels of traffic with less delay than most stop signs or signals. The tight curves slow traffic so entering and exiting are easier and more efficient. Roundabouts show a 39 percent decrease in all crashes and an 89 percent decrease in fatal crashes. Another roundabout is scheduled to open this fall at Highway 14 and Blue Earth County Road 12.