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Old December 29th, 2008, 10:20 PM   #1
martien
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Left turn from right lanes

In the city of Nogales, Sonora, Mexico they have this kind of lanes configuration where you have to drive on the right lanes to make a left or U turn. This was arranged like that because the median is very narrow and it was difficult for large trucks to make U turns.

Is there any avenue with this kind of lanes arrangement in your city?

[IMG]http://i41.************/23vcmk1.jpg[/IMG]

[IMG]http://i41.************/50nsqc.jpg[/IMG]
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Old December 29th, 2008, 10:35 PM   #2
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I find this arrangment very dumb and unsafe, I am wondering which monkey made this out of his head, because he didn´t have the brain to think that some drivers which don´t see or accidently start driving on the lanes fro straight direction might crash into the leftturning vehicles or left turning vehicles pass the road when the trafficlight just turned red and other cars allready start driving.
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Old December 29th, 2008, 10:36 PM   #3
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That's interesting

And no, we don't have these. When the turn is too narrow, you simply cannot turn or make a U turn.
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Old December 29th, 2008, 10:38 PM   #4
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Well, there are tons of signs indicating the left turn lanes, I don't live in that city but the first time I drove with that new lanes I got the idea quickly and I wasn't confused at all.

However, I don't have the statistics about accidents with that new arrangements.
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Old December 29th, 2008, 10:39 PM   #5
martien
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I even searched on Wikipedia about this and I couldn't find anything. And they do have lots of articles about road configurations.
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Old December 29th, 2008, 10:43 PM   #6
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this is the first time i ever seen something like this...
seems logical and nicely implemented... but then again, really dangerous and there should be warning signs all over the place so the people wouldn't get confused...
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Old December 29th, 2008, 10:52 PM   #7
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There's a ton of these situations in New Jersey. They're called jughandles here in the US.
They're just about standard on roads with more than two lanes, which are everywhere in Jersey.

image hosted on flickr


Here's one in Pennsylvania- this is the jughandle with the main road just to the left of this pic:

image hosted on flickr

Last edited by Billpa; December 29th, 2008 at 10:57 PM.
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Old December 29th, 2008, 11:06 PM   #8
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In most of EU U-turns are forbidden or at least discouraged, especially for trucks.
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Old December 29th, 2008, 11:07 PM   #9
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Indeed. One good thing about the roundaboutmania in some countries is you can make U-turns quite easy.
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Old December 29th, 2008, 11:15 PM   #10
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Salt Lake has some really weird turns that were only implemented like a couple years ago, I never got to experience one myself before I moved. I forget what they are called. But they have you drive on the other side of the road if you're going to turn left...or something like that. I'll have to try to remember the name...
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Old December 30th, 2008, 12:28 AM   #11
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Here's one in Utrecht, NL:


http://maps.google.nl/maps?f=q&hl=nl...01706&t=h&z=20
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Last edited by CborG; December 30th, 2008 at 12:38 AM.
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Old December 30th, 2008, 12:32 AM   #12
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Found it! Here are the new ones they've put in Salt Lake City:



What do you all think?
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Old December 30th, 2008, 12:38 AM   #13
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Quote:
Originally Posted by Dan1113 View Post
Found it! Here are the new ones they've put in Salt Lake City:



What do you all think?
woooooooooooow crazy people men,its very dangerous.
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Old December 30th, 2008, 01:03 AM   #14
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I think that one in Salt Lake City is a continuous flow intersection. It was invented and patented by the Mexican engineer Francisco Mier.

In Mexico it's usually called "vuelta inglesa" (english turn)


http://en.wikipedia.org/wiki/Continu...w_intersection
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Old December 30th, 2008, 04:56 AM   #15
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These are everywhere in Melbourne due to trams. They're called "hook turns".
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Old December 30th, 2008, 06:32 AM   #16
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I've never seen any of these in Canada. They are quite counter-intuitive, though it seems that in all cases they have dedicated traffic lights, which makes the risk very small, since it doesn't mean that one has to give way to cars going straight (and the ones coming from the other direction).

I would still probably get confused if I encountered such an intersection without any knowledge of it in advance.
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Old December 30th, 2008, 07:13 AM   #17
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I think it's great! Very useful for intersections with lots of trucks.

Quote:
To reduce confusion regarding the left-turn lane, the left-turn lane and the straight-through lanes are usually separated by a concrete barrier or traffic island.
If properly isolated, drivers shouldn't really notice they're in a continous flow interchange, all you have to do is follow the directions and obey the traffic light.
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Old December 30th, 2008, 07:48 AM   #18
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That looks dangerous.
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Old December 30th, 2008, 11:16 AM   #19
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why are you all talking about this as dangerous? it is absolutely not more dangerous than ordinary intersection with traffic lights. the only problem is this what TheCat has said - they are counter intuitive
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Old December 30th, 2008, 11:23 AM   #20
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Quote:
Originally Posted by Svartmetall View Post
These are everywhere in Melbourne due to trams. They're called "hook turns".
I was just coming along to post that.
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