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Old December 6th, 2007, 05:24 PM   #261
patcheon
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Singapore's Central Expressway (CTE) has 2 tunnels, one 0.7km and another 1.7km, that goes right under part of the CBD. Right now, Singapore is also building a 12km Kallang-Paya Lebar Expressway (KPE) which 9km is underground. This is suppose to be the longest underground expressway tunnel in south east asia. Currently 3km of the tunnel is open for use. The project is expected to be completed by end of 2008.
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Old December 6th, 2007, 08:40 PM   #262
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Quote:
Quote:
Originally Posted by Rohne View Post
??
The A96 from Lindau ends at the Mittlerer Ring and there are no tunnels. Within Munich's city limits only the Mittlerer Ring and the Altstadtring have some tunnels but the first runs like a rectangle around the city quite far away from the city center and the latter has nothing to do with a motorway.


then maybe it´s the A8 already, you pass through a tunnel and then either stay on the A8 or leave it and get on the Autobahn to Passau.
Radi, you're thinking of the "Aubinger Tunnel" (approx. 2km length) which is on the western part of the A 99 (Munichs motorway ring) between the A 96 (which has some smaller tunnels, too and ends at the Mittlerer Ring (Munichs city ring road)) and the A 8. But it isn't really a city tunnel, there are fields on top of it. It was build for noise protection.



In Switzerland, Basel (N 2 if I'm right) and St. Gallen (N 1) have pretty impressive underground motorways. In St. Gallen the whole city is underpassed (is this a correct english word?) by two or three tunnels with exits between. In Basel the area of Badischer Bahnhof (north of the Rhine has a motorway tunnel. Even more ass-kicking is the new motorway from the N 2 (?) to the swiss-french boarder in the northern part of Basel: the whole section is underground (except the Rhine bridge) including underground exits, etc.!
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Old December 7th, 2007, 02:14 PM   #263
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It looks like the Basel road number is A3, and is called "Nordtangente", and the total tunnel length is a bit more than 2 km.

Map:
http://www.viamichelin.fr/viamicheli...8&empriseH=650

I have by the way added some future plans to my previous post.

Last edited by 54°26′S 3°24′E; December 7th, 2007 at 03:56 PM.
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Old December 7th, 2007, 04:57 PM   #264
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Exactly. It's the A 3. According to Wikipedia, 87% of the total length of the Nordtangente (a bit more than 3 km) are underground.
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Old December 7th, 2007, 08:05 PM   #265
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I have by the way added some future plans to my previous post.
That's one heck of a post. It's strange to think that in 10-15 years we'll be able to drive from Sandvika to Ryen, a distance of about 15 km, and only be above ground for maybe a km of that.
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Old December 8th, 2007, 02:27 AM   #266
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Actually, the plan goes beyond that. It includes a tunnel for Mosseveien (E18 south) to Fiskevollbukta/Ljan (23 km from Sandvika), a tunnel for E6 Manglerud-Alna, a roof for E6 in Groruddalen (North of Oslo) (perhaps 26 km from Sandvika??) and a tunnel for Rv 4 Bjørvika-Økern ("only" 20 km from Sandvika). And yet there are more tunnels.

However, this propably won't impress many from the west coast of Norway. In Bergen you can already drive from Eidsvåg to Fyllingsdalen (540) or Klubben (555) mostly in tunnels over a total length of roughly 14 km, and the construction has come a long way connecting 540 and 555 with new 8 km of motorway tunnels. (See map in previous thread, the project will be finished in 2009). Not to mention that they have the longest road tunnel of the world at the west coast of 24.6 km (see this post), and Stavanger pushes for an even longer underwater motorway tunnel towards Haugesund. (As discussed here, there is also proposal for a similar tunnel across the Trondheim fjord, but I think it is further away with the bad track record that region has with attracting money from the government.)

Personally I do not like to drive in too long high-traffic tunnels because the air is not terribly fresh, but they have undeniable been very good for the general city development both for Tromsø, Bergen, Oslo and other towns/cities of Norway.

Last edited by 54°26′S 3°24′E; December 9th, 2007 at 01:54 PM.
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Old January 20th, 2008, 02:23 PM   #267
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Old topic

The Dutch Hubertus tunnel is nearing completion. This tunnel is located near The Hague, and is the longest urban tunnel that is not a river tunnel. It is 1600 meters long or one mile.


(pic is almost 1 year old)

This tunnel is also kind of a shame, boring an expensive tunnel, yet it ends at traffic lights and has a maximum speed of only 50km/h. The tunnel has 2x2 lanes, and is constructed with a tunnel boring machine, like the Channel tunnel, but ofcourse on a much smaller scale.
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Old January 20th, 2008, 03:10 PM   #268
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Södra Länken in almost downtown Stockholm is 4.5 km making it the longest.
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Old January 20th, 2008, 04:11 PM   #269
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Blanka

I know it is not the longest but though it could be interesting for someone.

5502 m (5489 m second tube) long tunnel complex Blanka is currently under construction in Prague near the city center as a next part of City Ring. The construction involves 2 underground intersections and 5,5 km of bored resp. 6,6 km of cut&cover tubes, that makes it 12,1 km of tubes altogether.



website (in czech) &map: http://www.tunelblanka.cz/aktualni-vyvoj-postup.php
discussed and updated on SSC here: http://www.skyscrapercity.com/showthread.php?t=307793
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Old January 20th, 2008, 08:14 PM   #270
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Originally Posted by Chriszwolle View Post
You are lucky. I wish my tax money was used to build some more lanes on our motorways.
No, it's spent on "New Europe" motorways.. but that's cool too I think.
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Old March 19th, 2008, 09:45 PM   #271
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Metropolitan area's without congestion

Okay, here's an idea. What about a list of metropolitan area's which do not suffer from severe congestion. Ofcourse, a few qeues are not that bad, but i mean cities without structural major delays on many freeways.

minimum requirement: metropolitan area needs to have at least somewhere near a million inhabitants.

To list a few:

* Oklahoma City
* Tulsa
* Kansas City
* Denver
* San Diego?
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Old March 19th, 2008, 10:44 PM   #272
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Old March 19th, 2008, 10:52 PM   #273
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Well, if cities like Tulsa (metropolitan area) counts, what about Germany's most forgotten city: Bielefeld?
  • Tulsa
Population (2006)
City 382,872
Density 2,152.0/sq mi (819.91/km²)
  • Tulsa Metropolitan Area
Population 897,752
Density 151.8/sq. mi. (189.06/km²)
Area 6,240 sq. mi. (16,164 km²)
  • Bielefeld
Population 325,846 (31/12/2006)
Density 1,264 /km² (3,274 /sq mi)
  • 'Greater Bielefeld' (Ostwestfalen-Lippe)
Population
2.065.413
Area 6.518 km²
Density 317/km²
But let's be honest, the last one isn't a metropolitan area, it is a relatively densly populated area. So in order to get the facts right, i would suggest strict criteria for the use of the term 'metropolitan area' otherwise every discussion is useless. American style metropolitan areas are not suitable for a fair comparison with European or Asian metro's. (The kind of discussion we see often on SSC).
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Old March 19th, 2008, 10:55 PM   #274
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Bielefeld sounds more like a CSA (Combined Statistical Area). Let's not include those.
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Old March 19th, 2008, 11:10 PM   #275
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Quote:
Originally Posted by Chriszwolle View Post
Bielefeld sounds more like a CSA (Combined Statistical Area). Let's not include those.
Bielefeld with a population of two million sounds indeed like a CSA, but the larger urban zone of Bielefeld, according to Eurostat, counts 1.29 million people. (1). Otherwise, the World Gazetteer suggests a metropolitan area for Bielefeld of 1.44 million (2)

Remember, we are talking here about an (urban) area which is smaller than the metro's of Kansas City, Oklahoma City or Tulsa. So, the question still remains what the criteria are for metropolitan area if we want to compare them worldwide. Or is the difference nothing more than urban sprawl?
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Old March 19th, 2008, 11:19 PM   #276
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I remember from Stockholm not having big congestions comparing to other European cities.
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Old March 20th, 2008, 02:24 AM   #277
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Adelaide (1.1mil) and Perth (1.5mil) aren't too bad
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Old March 21st, 2008, 08:09 PM   #278
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Quote:
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I remember from Stockholm not having big congestions comparing to other European cities.
The traffic can get quite bad on the motorways surrounding Stockholm, especially Essingeleden and other busy stretches. Although, Stockholm's large area, small population density and high public transportation usage makes it less congested than similar sized European cities.
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Old March 21st, 2008, 09:42 PM   #279
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Upper Silesian Industrial Region

population: 2 784 209
area: 3359,74 km²

Roads:
Motorway A1 (Poland) (Czech - KATOWICE - Tricity / Baltic Sea)
Motorway A4 (Poland) (Germany - KATOWICE - Ukraine)
European route E40 (France - Belgium - Germany - KATOWICE - Ukraine - Russia - Uzbekistan - Kazakhstan)
European route E75 (Norway - Finland - KATOWICE - Slovakia - Hungary - Serbia - Macedonia - Croatia - Crete)
European route E462 (Czech Republic - KATOWICE)
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Old May 13th, 2008, 06:09 PM   #280
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Copenhagen also doesn't seem to suffer from severe congestion. The busiest road has only 101,000 vehicles/day.
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