There are 10,000+ roundabouts in the US and the number is growing rapidly. One could argue they may even be overused in certain areas (exhibit: Carmel, Indiana).

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InfraScaler 4 days ago | parent | next [-]

There are more than 15k only in Spain. 10k in the US is nothing.

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ImPostingOnHN 4 days ago | parent | prev [-]

>There are 10,000+ roundabouts in the US

So about 0.003 roundabouts per square mile, or 1 roundabouts in 380 square miles

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olyjohn 4 days ago | parent [-]

What's the significance of roundabouts per square mile? It seems pretty meaningless if I'm honest. There's huge swaths of rural land where roundabouts are totally unnecessary.

	▲	ImPostingOnHN 4 days ago \| parent [-]
		There are also huge swathes of city, much like other countries. At the same time, the US is much larger than most, so "There are 10,000+ roundabouts in the US" isn't very significant. A proportion would thus be a better metric here than an absolute number. If you have numbers on intersections per country, and what proportion of them are roundabouts, that would be better, but I don't, so I'm using land as a proxy. I would also accept sum total road length as an option for denominator.