Carmel, Ind., is the roundabout capital of the U.S. The mayor has removed 78 sets of traffic lights and replaced them with the free-flowing circular traffic pattern imported from the U.K. Here's the BBC's report.
Pittsburgh is slowly joining the national trend toward roundabouts, which are more efficient and safer than traditional intersections. We're building one at the Ewing Road exit of Business 376 and another at a snarled intersection in Rochester, Beaver County, is nearly complete. Here's our recent report on the Ewing project.
The Rochester roundabout. (Timesonline.com.)