comparing this roundabout in Boulogne-sur-Mer with one at my alma mater...compare ratio of center island area to travel lane areapic.twitter.com/HgvodVVuTA
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Why are traffic engineers so determined to fuck up roundabouts in USA? Well, this is a bit of a guess, but I think it's because you get a lot of accidents in intersections (due to conflicts + high speeds on green light), so they use roundabouts to address this
roundabouts always do two things: - eliminate turning conflicts - eliminate excess wait time from red lights and can be designed to do a third: - force traffic to slow down
When I speak favorably about roundabouts, I'm only considering the first two impacts--I dislike roundabouts that deliberately slow traffic down (that they tend to be laughably large and overdesigned doesn't help)
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