alt Hacker NewsI swear if the US could build regular roundabouts, converting an intersection would make the accident rate go down, instead of up.
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brudgers • yesterday at 8:53 PM
They can and do build them.
The problem is that at intersections the normative behavior of American drivers is to queue and wait for your turn. Roundabouts assume a different behavior based on jumping the line.
Thus there is a lot of unpredictability regarding other drivers due to generations of driving patterns developed in diverse regional driving cultures...many of which are distinctly not-urban.
In addition, this roundabout is part of an Interstate Highway interchange. The US Interstate system is at a scale that doesn't occur elsewhere. It is transcontinental.
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From what I understand roundabouts make accident rate go up, it is the severity of accidents that goes down which probably still a positive.
That said I have yet to drive through a roundabout that I think improved an intersection in any meaningful way. Half of them work as intended but I find them less pleasant to drive through, the other half are just horribly designed and often have semitrucks go through them when they aren't really large enough for that.