When a city in Indiana replaced all their signaled intersections with roundabouts, construction costs dropped $125,000, gas savings reached 24k gallons/year per roundabout, injury accidents dropped 80%, and total accidents dropped 40%.
Since the 1990s, Carmel, Indiana has been replacing all signaled intersections with…
Since the 1990s, Carmel, Indiana has been replacing all signaled intersections with roundabouts. Benefits include gas savings of 24k gallons/year per roundabout; construction costs $125,000 less per intersection; injury accidents dropped by 80 percent and total accidents dropped by 40 percent.