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Old January 11th, 2009, 11:15 PM   #941
Verso
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Is your location this Oxford, or the better known one?
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Old January 11th, 2009, 11:16 PM   #942
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I see I thought so because of his Kansas State Route avatar
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Old January 12th, 2009, 01:26 AM   #943
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The Prins Clausplein interchange near the Hague also has independent ramps right?

By the way J N Winkler, what would you call the stacks on I-20 south of Dallas if not designed for high speeds with common ramps?

Last edited by Koesj; January 12th, 2009 at 01:31 AM.
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Old January 12th, 2009, 02:24 AM   #944
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The search for the elusive stack interchange in Europe. Those stack interchanges gotta be hiding somewhere.
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Old January 12th, 2009, 09:49 AM   #945
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Quote:
Originally Posted by ChrisZwolle View Post
Brütiseller Kreuz?

But there's also the Limattaler Kreuz...
Only the Limattaler Kreuz is a 4-way motorway crossing. The Brüttiseller Kreuz is unfinished and never will be, so it's only 3 way. One side is just heading to a normal road. There are other 3-way intersections in Switzerland that have a exit integrated into it (Reichenburg is one of them), but I would not call them 4-way intersections.

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ey, Limmattaler Kreuz is a stack interchange: http://maps.google.com/?ie=UTF8&ll=4...09656&t=k&z=17
Well it's similar, but there are some differences. I would say it's semi-stacked
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Old January 12th, 2009, 12:35 PM   #946
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We're all talking about stacks right? Then let's get some things out of the way: why not define full stacks as road interchanges in four directions with four levels of connecting roads within them?


[IMG]http://i39.************/ab41ud.gif[/IMG]


In this scheme, loosely based on the BW-8 / I-45 south interchange in Houston, the two main directions of the highway are on levels 1 and 2. The left-turn connectors (or right turn if you're based in a left-driving country) are in this case above the main directions on levels 3 and 4. The main point is that at least four distinctive heightlevels of engineering works can be discerned.

This is not the case with the Limattaler Kreuz. The left turn conenctors from the A3 are between levels 2 (east-west) and 3 (north-south) with the left turn connectors from the A4 on level 1. This makes the interchange at most a 3.5 level hybrid since no full fourth level of engineering works needed to be built.
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Old January 12th, 2009, 03:34 PM   #947
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Quote:
Originally Posted by J N Winkler View Post
* Produce a complete list of four-level stacks in the world (not just the US and western Europe--there are stacks in Venezuela and China, for example).

* Obtain construction dates for each stack

* Classify stacks according to turning movements handled by common and independent ramps
Here's my two cents:

Sydney has one stack interchange; I think it is the only 4-way stack in Australia that permits all turning movements, but I am open to correction here. It is called the Light Horse Interchange, and it was opened to traffic on December 16, 2005 with the M7 motorway (the M4, the other road running through the interchange, had its various sections built between the 1960s and the 1980s).

Google Maps link: http://maps.google.com.au/?ie=UTF8&l...23754&t=k&z=16

The diamond interchange with Wallgrove Road had existed for many years before the construction of the interchange, and so the stack was simply built around it.


Also of interest, though not relevant to your list, is the interchange between the M31 and the M80 in Melbourne. It is a 3-way interchange in the form of half a stack, but I do not know why it was built that way and not as a trumpet, since the M80 to the east doesn't go anywhere important (in fact, it becomes single carriageway not far to the east of this junction), so the traffic movement from here onto the M31 would not be very large at all, and there doesn't appear to be any land reserved to extend the M31 any further south, which would be pointless anyway as there are other roads that perform that function.
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Old January 12th, 2009, 05:02 PM   #948
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The Light Horse looks more like a turbinestack. But I like the design.
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Old January 13th, 2009, 12:31 AM   #949
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Quote:
Originally Posted by J N Winkler View Post
Produce a complete list of four-level stacks in the world ... [...] ... China
Good luck.

China is probably already the country with the most stack interchanges in the world - and a couple of new ones are added every week or so.
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Old January 13th, 2009, 12:53 AM   #950
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Quote:
Originally Posted by Koesj View Post
This is not the case with the Limattaler Kreuz. The left turn conenctors from the A3 are between levels 2 (east-west) and 3 (north-south) with the left turn connectors from the A4 on level 1. This makes the interchange at most a 3.5 level hybrid since no full fourth level of engineering works needed to be built.
You're right, it's not the same. You can count four levels, but not in true sense of a stack.
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Old January 13th, 2009, 07:53 AM   #951
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Quote:
Originally Posted by ChrisZwolle View Post
Is your location this Oxford, or the better known one?
Quote:
(simply because it is the first stack, full stop)
That also kinda gave it away
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Old January 13th, 2009, 01:03 PM   #952
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So the final list according to the criteria in the OP should read:


Germany

A45 - A480 near Wetzlar: http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16


Great Britain

M25 - M23, London orbital motorway : http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16

M25 - M4, London orbital motorway : http://maps.google.com/maps?t=k&hl=e...,0.038624&z=16

M4 - M5 near Bristol: http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16


Greece

E75 - E94, near Athens: http://maps.google.nl/maps?hl=nl&ie=...09656&t=k&z=16


The Netherlands

Prins Clausplein (A4 - A12) near The Hague: http://maps.google.com/?ie=UTF8&t=k&...,0.019312&z=16


Spain

A1 - M40 near Madrid: http://maps.google.com/?ie=UTF8&t=k&...,0.019312&z=16


Note: these maps don't scale entirely well!

Is this correct?
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Old January 13th, 2009, 03:03 PM   #953
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Good job! Now wdw35 could paste this into his 1st post so that information is easily accesible
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Old January 13th, 2009, 08:08 PM   #954
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What about the one in Moscow? A bit strange, but...
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Old January 13th, 2009, 11:56 PM   #955
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Quote:
Originally Posted by Majestic View Post
Good job! Now wdw35 could paste this into his 1st post so that information is easily accesible
I refuse to believe that this is all that we have. Come on...
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Old January 14th, 2009, 03:10 PM   #956
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There are many more interchanges that are almost stacks, but if we're talking about real full stacks, this is probably it.
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Old January 14th, 2009, 04:25 PM   #957
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Quote:
Originally Posted by wdw35 View Post
I refuse to believe that this is all that we have. Come on...
So let's do this systematically shall we? For example, which EU countries have got stack interchanges?

Austria - none
Belgium - none, although the Brussels ring road has got one fully functional hybrid turbine-stack interchange
Bulgaria - none
Cyprus - none
Czech Republic - none
Denmark - none
Estonia - none
Finland - There's a four-level interchange near Tampere but it's no full stack
France - surprisingly, none
Germany - One near Wetzlar, Kreuz Köln Ost gets an honorable mention
Greece - One near Athens
Hungary - none
Ireland - none
Italy - none
Latvia - none
Lithuania - none
Luxembourg - none
Malta - none
Netherlands - One near The Hague, there is a four-level interchange near Ridderkerk and a partially completed stack south-west of Rotterdam
Poland - none
Portugal - none
Romania - none
Slovakia - none
Slovenia - none
Spain - One near Madrid
Sweden - none
United Kingdom - Three full stacks, two on the M25 and one near Bristol
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Old January 14th, 2009, 05:01 PM   #958
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What about Russia? Isn't that a full stack on MKAD? The cloverleaf is just a supplement.
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Old January 14th, 2009, 05:12 PM   #959
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It's not very symmetrical though. I've seen it in real life and it doesn't give you the impression that you're driving through a stack interchange.
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Old January 14th, 2009, 05:19 PM   #960
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^ Yeah, it does look a bit strange. Especially driving from the bottom right of the picture to the bottom left is a bit too winding.
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