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Old January 10th, 2009, 08:55 PM   #901
ChrisZwolle
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Those are regular overpasses, nothing more.
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Old January 10th, 2009, 09:15 PM   #902
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does this count?
its in madrid

http://maps.google.com/maps?t=k&hl=e...,0.040855&z=15
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Old January 10th, 2009, 09:16 PM   #903
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It's a turbine.
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Old January 10th, 2009, 09:22 PM   #904
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Germany:

A45 and A480 near Wetzlar, pretty symmetrical:

http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16

Nearly there but shouldn't count, A3 and B55a near Köln:

http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16
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Old January 10th, 2009, 09:23 PM   #905
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This is a stack:
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Old January 10th, 2009, 09:25 PM   #906
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Quote:
Originally Posted by enschede-er View Post
No , its the one near Washington
That is the one in Virginia.

Mexico has a lot of interesting interchanges, some impressive, some WTF? Here's a WTF?: http://www.google.com/maphp?hl=en&q=...,0.017724&z=15 .

And another: http://www.google.com/maphp?hl=en&q=...35448&t=k&z=14
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Old January 10th, 2009, 09:28 PM   #907
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are there any legit. AADTs elsewhere in europe that would deserve stacks?
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Old January 10th, 2009, 09:31 PM   #908
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It largely depends on turning traffic. If two motorways cross eachother perpendicular, but there's few exiting traffic to the other motorway, a cloverleaf will do. For instance on Kreuz Feuchtwangen/Crailsheim (A6/A7) in central Southern Germany, the exiting traffic is probably low, thus a cloverleaf will do.

But on interchanges with a lot of exiting traffic, a stack is better. A stack is more expensive, but contrary to popular belief does not necessarily takes up more space than a cloverleaf with collector lanes. For example Knooppunt Hoevelaken in the Netherlands (A1/A28) should be converted to a stack.
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Old January 10th, 2009, 09:55 PM   #909
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Quote:
Originally Posted by ChrisZwolle View Post
This is a stack:
You've been showing us turbines though (or whatever that was).

Quote:
Originally Posted by Koesj View Post
Germany:

A45 and A480 near Wetzlar, pretty symmetrical:

http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16
Pretty odd, isn't it? The A480 doesn't look important to me at all.
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Old January 10th, 2009, 10:19 PM   #910
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The interchange has probably been constructed like a stack because of local height differences.


Great Britain


London orbital motorway M25 - M23:

http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16

London orbital motorway M25 - M4:

http://maps.google.com/maps?t=k&hl=e...,0.038624&z=15

M4 - M5 near Bristol, first stack interchange in the UK:

http://maps.google.com/maps?t=k&hl=e...,0.019312&z=16


Greece


E75 - E94, Athens:

http://maps.google.nl/maps?hl=nl&ie=...09656&t=k&z=17



Quote:
Originally Posted by Verso View Post
You've been showing us turbines though (or whatever that was).
The ones Chris showed are 1. a full stack, 2. a semi-directional T superimposed over a clovermill and 3. a partially constructed stack interchange

Last edited by Koesj; January 10th, 2009 at 10:34 PM.
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Old January 10th, 2009, 10:53 PM   #911
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Those Mexican interchanges seem to have very poor geometrics.
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Old January 10th, 2009, 10:54 PM   #912
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The Greek one doesn't count, when you have to (almost) stop due to the toll stations.
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Old January 10th, 2009, 10:57 PM   #913
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Quote:
Originally Posted by ChrisZwolle View Post
Interchange Groot-Bijgaarden.
[IMG]http://i40.************/25i23at.jpg[/IMG]
Is this really a stack interchange? You can't drive particularly fast in some of those curves...
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Old January 10th, 2009, 11:04 PM   #914
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Quote:
Originally Posted by Verso View Post
Is this really a stack interchange? You can't drive particularly fast in some of those curves...
That would be a half-turbine half-stack interchange.
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Old January 10th, 2009, 11:11 PM   #915
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Those are called hybrids

Why we don't have much stacks in Europe, is not only because we haven't got a real grid system, like I mentioned earlier, but European motorways tend to have often only the socalled "Dreieck" interchange. That means three directions on an interchange and not four. This is especially an issue in France for instance. Motorways that do cross eachother with 4 directions usually only have a cloverleaf interchange.

Maybe we can compile a list of interchanges that better should've been stacks.

Netherlands

Interchange Hoevelaken A1/A28
Interchange Oudenrijn A2/A12
Interchange Lunetten A12/A27
Interchange Rijnsweerd A27/A28
Interchange Badhoevedorp A4/A9
Interchange Rottepolderplein A9/A200
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Old January 10th, 2009, 11:15 PM   #916
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Quote:
Originally Posted by ChrisZwolle View Post
Interchange Oudenrijn A2/A12
There is not so much traffic from the A12 heading west to the A2 heading south, so that wouldn't be necessary. Traffic on the A12 heading for Den Bosch usually takes the A27 as a cut-off. A stack would look nicer though
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Old January 10th, 2009, 11:39 PM   #917
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That whole area around I/C Oudenrijn is subject to mass housing projects, in excess of 10,000 homes will be build besides the already megaproject of Leidsche Rijn. So, it might be necessary in the future. All other directions are busy, so it's better to build a stack at once.
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Old January 11th, 2009, 04:26 AM   #918
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Quote:
Originally Posted by ChrisZwolle View Post
Maybe we can compile a list of interchanges that better should've been stacks.
I know this isn't in Europe, but I think the Wingfield Interchange in Cape Town between the N1 and the N7 should have been a stack:

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

The N1 west heads to the CBD, so radial traffic from the north each morning must make a right turn here (South Africa drives on the left). Also, traffic from the Bellville area heading northward will usually come this way and then make a right turn onto the N7, although this will no longer be the case when the Peninsula Expressway is built.



Another horrible interchange (or rather, pair of interchanges) is that between the N2 and M5 and the N2 and M52 (all are freeways except the M52):

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

In my opinion, two cloverleafs should never be placed this close to each other. Probably the best alternative here would have been to simply build a diamond interchange at the M52.



Finally, I think the intersection of the N7 and the N2 should have been built as a stack, with the N7 being completed as a 100 km/h freeway north to the N1, instead of the 60 km/h expressway it is today:

http://maps.google.com.au/?ie=UTF8&l...23754&t=k&z=16
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Old January 11th, 2009, 04:50 AM   #919
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What do you call this kind of interchange? It has four levels but clearly isn't a stack interchange..

http://maps.google.com/?ie=UTF8&ll=5...43945&t=k&z=15
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Old January 11th, 2009, 05:04 AM   #920
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Quote:
Originally Posted by staff View Post
What do you call this kind of interchange? It has four levels but clearly isn't a stack interchange..

http://maps.google.com/?ie=UTF8&ll=5...43945&t=k&z=15
That's half a turbine plus a full diamond, if I'm not mistaken.
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