A slide from a Mead & Hunt presentation shows a recent update to the design of the Lake Dillon Drive and U.S. Highway 6 roundabout. The Dillon Town Council reviewed roundabout options Jan. 20 before deciding to stick with the two-roundabout option. That development could bring a 30-40% increase in traffic through the intersection of Highway 6 and Lake Dillon Drive, Silberman said. “We definitely have some concerns about the ability of the signal to process all of that traffic,” Silberman said. Council members expressed concerns about the safety of a roundabout at Lake Dillon Drive.