Re: Is the British roundabout conquering the US? - Saab General Bulletin Board - Saabnet.com
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Re: Is the British roundabout conquering the US?
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Posted by Larry West [Email] (#1140) [Profile/Gallery] (more from Larry West) on Fri, 1 Jul 2011 10:07:29 Share Post by Email
In Reply to: Is the British roundabout conquering the US?, JohnA [Profile/Gallery] , Fri, 1 Jul 2011 08:41:43
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"Roundabouts" CAN be a lot safer and more efficient. The key is in how drivers navigate them. Massachusetts was, and still is, a place where the "rotary" thrives. When setup and signed properly, they work very well. New Jersey, on the other hand, has all but eliminated "circles" across the state. NJ's problem was that instead of educating drivers and posting proper signs, they kept drawing the wrong lines, and stopping the wrong traffic on them, until they became almost un-navigable. It didn't help that it was extremely rare that they were actually round. Many of them were merely a wide bit in the road, and all right of way was given to the major road, so if you had to cross the major road, or worse, make a left, the tie-ups could grow to epic proportions.

Little Maine towns are putting them in, and they're even making a comeback on a small scale in NJ.

Some of the best I've seen have been in Sweden. Almost perfectly circular, the signage is also excellent (something US DOTs could learn a LOT from...). My favorite implementation was a roundabout as a highway exit device. The highway got one on ramp and one off ramp in each direction. These ramps led to an elevated roundabout where the minor road crossed. The traffic flow was very easy and one wondered, why they are not all like that, instead of the often suicidal "cloverleaf" exit in the US, where you've got accelerating and decelerating traffic trying to occupy the same space...

Erik Carlsson has one named after him in Trollhättan. It's just north of the museum, and signed "Erik Carlsson's Rondell"...

_______________________________________ Current: 2002 9-5 Aero Kombi Cosmic Blue 2000 9-5 SE sedan, Imola Red 1990 900S Rose Quartz, Auto Past: 1999 9-5 LPT Combi 1999 9-5 LPT sedan 2002 9-5 Arc 1990 900 5-speed 1986 900 turbo Convertible 1991 9000 turbo 1980 99 GLi 1986 900 turbo 1986 900 S 1991 900 turbo 1984 900 turbo 1976 99 GL


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