Does America Have Roundabouts?

Thanks to the database's growth and longevity, Lee estimates the number of roundabouts in the US through 2020 is about 7,900. A portion of this is an estimate of unknown roundabout sites in the US (sites that exist but haven't been identified yet), now down to 5.6% from 13% in 2019, 29% in 2016 and 40% in 2013.

Why are there no roundabouts in America?

There's another major reason why roundabouts haven't caught on in America: our lack of awareness of other drivers. ... Roundabouts require drivers to make their own decisions and assess others' actions, rather than relying on third-party signals.”

Do they use roundabouts in America?

Although the roundabout is still a thing in the USA, they're not at all common. There are around 7000 across the whole country, which is nothing for a road network of that size - on our tiny British Isles, there are 25,000.