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Old November 23rd, 2009, 02:58 PM   #801
Substructure
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Quote:
Originally Posted by Cyril View Post
There is not a single stack interchange in France, only semi-stacks like that one on the previous page.
The only full stack project I know of is the one that was to be built south of Paris in the 1970's as we can see it drawn with dashes on this 1976 edition Michelin map:

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Only half of it was built eventually. The reason is that the northwards motorway was cancelled (the motorway was to join Paris second ring road to Paris city ringroad). The gvt decided that the new TGV atlantique railtrack should use that corridor instead.
Sorry for digging this out as I'm just finding this post. I'm thrilled to learn we had at least at some kind of projects to build a stack interchange in France. Now my question is, how is it we still don't have any ? Given the traffic intensity in the Paris or Lyon areas, I guess this wouldn't hurt ?
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Old November 23rd, 2009, 03:32 PM   #802
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[img]http://i34.************/24bvku8.png[/img]
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Old November 23rd, 2009, 07:52 PM   #803
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Quote:
Originally Posted by Substructure View Post
Sorry for digging this out as I'm just finding this post. I'm thrilled to learn we had at least at some kind of projects to build a stack interchange in France. Now my question is, how is it we still don't have any ? Given the traffic intensity in the Paris or Lyon areas, I guess this wouldn't hurt ?
The u/c section of this motorway is now completed, right?
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Old November 23rd, 2009, 09:40 PM   #804
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Originally Posted by christos-greece View Post
The u/c section of this motorway is now completed, right?
no just the parts built which you can see on the map
there is still today this 1/4 of 4 stack, probably forever because the 2 projects A 10 and A 87 are now abandoned

for informations about these projects and all that never been completed or realised:http://www.fur4x-hebergement.net/maa...nue_france.htm
site in French, go on "ile de france" on left side for motorways in Paris metro
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Old November 24th, 2009, 08:36 PM   #805
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no just the parts built which you can see on the map
there is still today this 1/4 of 4 stack, probably forever because the 2 projects A 10 and A 87 are now abandoned

for informations about these projects and all that never been completed or realised:http://www.fur4x-hebergement.net/maa...nue_france.htm
site in French, go on "ile de france" on left side for motorways in Paris metro
Thanks, i will check this thread...
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Old November 28th, 2009, 05:22 AM   #806
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This is not a fake picture. It's a real road in the southeast of France. I wonder if some international forumers have already driven on it...

PS: Secret tip about France: always drive away from the autoroutes, on the old national and departmental roads. They are in excellent conditions (the national and departmental road network was already top notch before the age of motorways, thanks to more than 200 years of royal, imperial, and republican investments), and that's where you'll discover the most interesting things in France, whereas the autoroutes are usually boring.

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Old November 28th, 2009, 03:35 PM   #807
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Quote:
Originally Posted by brisavoine View Post
PS: Secret tip about France: always drive away from the autoroutes, on the old national and departmental roads. They are in excellent conditions (the national and departmental road network was already top notch before the age of motorways, thanks to more than 200 years of royal, imperial, and republican investments), and that's where you'll discover the most interesting things in France, whereas the autoroutes are usually boring
That's is true; i also agree with brisavoine: I watching the cycling event of Tour de France every year, since 2001 and i can say that all those roads are in great, escellent conditions, around France...
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Old November 28th, 2009, 04:02 PM   #808
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In august 2008, I did a roadtrip throughout France, and I mostly used the old RN roads. It was indeed great to drive, for instance the old RN20 Brive - Montauban is much more fun to drive than the A20 toll road which is quite boring. Plus, because of the toll roads, traffic volumes are very low on those parallel roads if you drive outside the peak summer days (Fridays, Saturdays).

I also drove the RN88 from Mende to St. Étienne. I loved that road, high standard, low traffic volumes and great scenery, almost alpine because you're ascending to over 1200 meters.

Northern France isn't that great though. I would only recommend to drive the old main roads there if you have no rush and want to avoid tolls.
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Old November 29th, 2009, 11:35 AM   #809
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In Northern France, when you driving you can see the famous yellow fields...
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Old November 29th, 2009, 02:44 PM   #810
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Widening project of the A9 Perpignan - Spanish border to 2x3 lanes.

[IMG]http://i45.************/wu1gnd.jpg[/IMG]
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Old November 29th, 2009, 03:07 PM   #811
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Originally Posted by ChrisZwolle View Post
Widening project of the A9 Perpignan - Spanish border to 2x3 lanes.
It was about time!
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Old November 29th, 2009, 04:16 PM   #812
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So, it looks like my question was quickly burried in the flow. If anyone has an answer to it...

http://www.skyscrapercity.com/showpo...&postcount=799
Sum up : why no stack interchange in France while we have some high volume highways that would benefit from it, and other EU states have built some ?
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Old November 29th, 2009, 04:23 PM   #813
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Stacks are usually rare in Europe, there are only a few real stacks.

In France, the busiest freeways are around Paris. However, the layout of the freeways in the Paris area doesn't allow for much stacks. For instance, many circular routes share segments with other roads, like A104/N104 with A4 and A86 with A3 and A4, so they are usually interchanges with 3 directions instead of 4.

By the way, stacks are also not that common in certain parts of the United States. The largest concentration of them is in Texas, while other states have none or only one or two.
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Old November 29th, 2009, 05:16 PM   #814
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I came across a city map when in Rotterdam and wow Dutch interchanges are incredibly complex, much more than France's :

image hosted on flickr
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Old November 29th, 2009, 05:20 PM   #815
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Only a handful of Dutch interchanges are really complex, we need a lot more of them. The Netherlands has a motorway network more or less in a grid, much more than in France, where the motorways are radial from a few cities, most notably Paris, Lyon, Bordeaux and Toulouse.
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Old November 29th, 2009, 05:26 PM   #816
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Quote:
Originally Posted by ChrisZwolle View Post
Widening project of the A9 Perpignan - Spanish border to 2x3 lanes.
More info on the project (in French).
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Old November 29th, 2009, 05:35 PM   #817
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Btw, maybe I should be looking in the Spanish thread but aren't they widening the AP-7 on the Spanish side up to the border? This means that in the near future there should be at least 2x3 from Tarragona to Nîmes (and all the way to Lyon/Beaune if the A9 northern gap is closed too).
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Old November 29th, 2009, 05:49 PM   #818
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Quote:
Originally Posted by Cyril View Post
I came across a city map when in Rotterdam and wow Dutch interchanges are incredibly complex, much more than France's :

image hosted on flickr
If that was the UK those motorways would meet with a roundabout, possibly on 3 levels, and most probably littered with 5 sets of traffic lights
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Old November 29th, 2009, 05:56 PM   #819
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Quote:
Originally Posted by Morsue View Post
Btw, maybe I should be looking in the Spanish thread but aren't they widening the AP-7 on the Spanish side up to the border? This means that in the near future there should be at least 2x3 from Tarragona to Nîmes (and all the way to Lyon/Beaune if the A9 northern gap is closed too).
That would be about 880 kilometers of continuous 2x3 motorway. Probably the longest such (logical) route in Europe. Algeria is beating us with that though, they are building a 1200 kilometer 2x3 Autoroute.
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Old November 29th, 2009, 06:06 PM   #820
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Actually it's China that is building that motorway, not Algeria. Give to Caesar...
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