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Old September 14th, 2015, 08:03 AM   #10801
keokiracer
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Quote:
Originally Posted by VoltAmps View Post
Care to provide any proof? Because frankly I don't think it looks "UK" at all. Unless every round about in the world is a "UK" thing.
The UK is full of 'roundabout-elevated-over-highway' interchanges.
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Old September 14th, 2015, 09:55 AM   #10802
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It would make a good park lid if the center was filled and it was extended on both sides a bit.
In the median of a busy urban arterial? That seems like a waste of money.
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Old September 14th, 2015, 10:03 AM   #10803
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Fishers, IN is next to Carmel, which is apparently the roundabout "capital" of the US.

http://www.pps.org/blog/carmel-india...bout-city-usa/

I think roundabouts are superior than traffic lights or stop signs on a street-level context, but I'm not sure if that translates well when dealing with a highway which has cars driving at full speed. At least they separated the righthand traffic from the roundabout entirely.
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Old September 14th, 2015, 10:10 AM   #10804
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Roundabouts are very common in Europe on roads with speed limits up to 55 or 60 mph.
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Old September 14th, 2015, 10:11 AM   #10805
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Quote:
Originally Posted by VoltAmps View Post
Care to provide any proof? Because frankly I don't think it looks "UK" at all. Unless every round about in the world is a "UK" thing.
Most of the motorway junctions (exits) in the UK are in the form or roundabout above or below the mainline (like the one in the graphic posted by ChrissZwolle).

They are widespread around the country and their proportion in total number of junctions is higher than in any other country. You can find the sometimes in Spain or France on some lesser expressways but only in the UK such roundabouts are so prevalent.
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Old September 14th, 2015, 06:38 PM   #10806
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I don't think so, if I'm correct in the UK they are using the wrong side of the roads...
I do love this type of thinking. Just because it's different doesn't mean it's "wrong".

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Old September 14th, 2015, 06:41 PM   #10807
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I do love this type of thinking. Just because it's different doesn't mean it's "wrong".

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Old September 14th, 2015, 08:51 PM   #10808
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Quote:
Originally Posted by ChrisZwolle View Post
In the median of a busy urban arterial? That seems like a waste of money.
They're quite common around the Seattle area and work pretty well at providing park space in places that don't have a lot of room otherwise for them.
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Old September 16th, 2015, 09:33 PM   #10810
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Quote:
Originally Posted by geogregor View Post
Most of the motorway junctions (exits) in the UK are in the form or roundabout above or below the mainline (like the one in the graphic posted by ChrissZwolle).

They are widespread around the country and their proportion in total number of junctions is higher than in any other country. You can find the sometimes in Spain or France on some lesser expressways but only in the UK such roundabouts are so prevalent.
Most of them are now signalised to become "gyratories". It's a bit of a cheap fix instead of massively upgrading junctions like this with direct links, because a lot of junctions like this serve high capacity roads that carry high volumes of traffic.
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Old September 18th, 2015, 01:29 AM   #10811
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Old September 18th, 2015, 04:26 AM   #10812
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Old September 18th, 2015, 08:24 AM   #10813
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Seattle's highways need some upgrading but I think its really cool that certain sections of I-5 and I-90 communicate with you. They show lane closures, slowdowns, and variable speed limits.

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Old September 19th, 2015, 01:38 AM   #10814
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Do people actually follow those signs?
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Old September 19th, 2015, 06:20 AM   #10815
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Usually when they're activated, you'll end up going slower than the 30 mph that's usually posted in the non-carpool lanes anyway.
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Old September 19th, 2015, 09:45 AM   #10816
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They're putting those on I-80 in the East Bay leading up to the Bay Bridge.
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Old September 21st, 2015, 08:19 AM   #10817
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Quote:
Originally Posted by Nexis View Post
Do people actually follow those signs?
People with sense do. I passed a lot of cars by switching lanes early. However people drive very chill here and I have my old east coast habits of immediately switching to the most efficient lane.

Quote:
Originally Posted by Xusein View Post
Usually when they're activated, you'll end up going slower than the 30 mph that's usually posted in the non-carpool lanes anyway.
I've learned 30mph means you'll be going under 20 mph lol.
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Old September 21st, 2015, 07:12 PM   #10818
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Quote:
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What's that 'Caution' supposed to mean? Yellow is actually the colour which indicates the instruction to merge. But then the arrow would look different.
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Old September 21st, 2015, 11:56 PM   #10819
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Quote:
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What's that 'Caution' supposed to mean? Yellow is actually the colour which indicates the instruction to merge. But then the arrow would look different.
It is telling motorists to be cautious since the HOV lane is closed ahead and that lane will be merging into the lane with the yellow arrow. Yellow is actually a color indicating caution in much of North America.
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Old September 22nd, 2015, 01:40 AM   #10820
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Quote:
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Yellow is actually a color indicating caution in much of North America.
... and all of the 80+ countries I've been to with traffic lights.
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