Carmel, IN, is recognized as the 'Roundabout Capital of the United States,' boasting more than 155 roundabouts with plans for additional installations. Since 1997, the city has been converting major intersections from stop signs and traffic lights to roundabouts. Former Mayor Jim Brainard, inspired by England’s efficient roundabouts, led this transformation. Adjustments were made to ensure vehicles slow down to about 10-15 mph. Construction costs vary, with a pair of roundabouts costing around $3.4 million, partially funded through federal grants. The city's population has grown significantly from 25,000 in 1990 to nearly 104,000 in 2024.
Carmel, IN, has transformed into the 'Roundabout Capital of the United States' with more than 155 roundabouts, fostering efficient traffic flow and urban growth.
Carmel's introduction of roundabouts began in 1997 under former Mayor Jim Brainard, whose vision drew from experiences in England and aimed for improved traffic efficiency.
Roundabouts were designed to encourage slower driving speeds, with adjustments made to initial designs to ensure vehicles traveled at about 10 to 15 mph.
Construction costs for roundabouts in Carmel vary, with two on 116th Street costing approximately $3.4 million, mostly funded through a federal grant.
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