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Old December 30th, 2010, 05:51 PM   #3081
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Quote:
Originally Posted by Wilhem275 View Post
Those treeless lines can be seen anywhere, browsing Gmaps, and they've been a giant doubt for me for a long time.

I thought they might have been safety measures against fires, but there are some even in areas with just a few trees (like in the picture).

Only recently, thanks to Street View, I discovered their real purpose
High-energy power lines pass through forest cuts like there here in the USA, too. The first thing that I thought when I saw that clear path through the interchange in that image was 'power lines'.

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Old December 30th, 2010, 08:25 PM   #3082
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The alternative are pipelines btw. Especially south Germany is riddled with pipelines only one to three meters underground transporting oil, processed fuel, liquid chemicals, steam, other gasses etc. Such pipelines can be spotted from the air by 10-30 meter wide cuts in forests etc. Although quite often they simply run in close parallel to existing streets or - in the forest - existing roads and paths.
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Old December 30th, 2010, 09:55 PM   #3083
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Can anyone tell me the (approximate) cost of such an overhead sign? Thanks in advance
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Old December 30th, 2010, 11:20 PM   #3084
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Are you planning on constructing a hwy in you backyard or something?
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Old December 31st, 2010, 12:07 AM   #3085
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Quote:
Originally Posted by Wilhem275 View Post
I thought they might have been safety measures against fires, but there are some even in areas with just a few trees (like in the picture).
This is also correct. Treeless lines within large forests are a good way to stop a forest fire. This safety measure is not uncommon in Estonia, for example.
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Old December 31st, 2010, 12:31 PM   #3086
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Are you planning on constructing a hwy in you backyard or something?
No, not really, just wondering.
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Old December 31st, 2010, 01:42 PM   #3087
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Are you planning on constructing a hwy in you backyard or something?
I am
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Old January 1st, 2011, 08:11 PM   #3088
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Quote:
Originally Posted by PLH View Post
Can anyone tell me the (approximate) cost of such an overhead sign? Thanks in advance
Somewhere in the region of €70,000 to €100,000 (in Germany), including mounting systems and installation; also depends on size, lighting systems and such. Only the sign itself without the mount probably around €15-20,000.

More complicated systems, e.g. switchable electronic displays on such a overhead sign, can make the whole overhead installation run in the region of €200,000 to €300,000.
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Old January 2nd, 2011, 03:25 AM   #3089
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what are they made of, gold
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Old January 2nd, 2011, 01:54 PM   #3090
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Quote:
Originally Posted by kato2k8 View Post
Somewhere in the region of €70,000 to €100,000 (in Germany), including mounting systems and installation; also depends on size, lighting systems and such. Only the sign itself without the mount probably around €15-20,000.

More complicated systems, e.g. switchable electronic displays on such a overhead sign, can make the whole overhead installation run in the region of €200,000 to €300,000.

can you give us some links to prove that? this seems to be incredibly expensive and personaly i won't believe it till i see some reliable source.
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Old January 2nd, 2011, 02:31 PM   #3091
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Seems plausible to me. A traffic light installation for a larger intersection quickly amounts to € 250.000 and a roundabout may run from € 500.000 to € 1 million for a turbo roundabout.

The Netherlands constructed 3.000 roundabouts in the past decade. At € 500.000 per roundabout, this means € 750 million has been spend on roundaboutization here. You can build 50 - 100 km of motorway for that kind of money.
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Old January 2nd, 2011, 07:49 PM   #3092
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can you give us some links to prove that? this seems to be incredibly expensive and personaly i won't believe it till i see some reliable source.
Everything is much more expensive when a government is involved.
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Old January 2nd, 2011, 09:19 PM   #3093
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Everything is much more expensive when a government is involved.
yep, i see. i've been searching for a company which was involved into equipping HR motorways with dynamic signs to try to see its price. but, you're guessing, that company doesn't exist anymore
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Old January 2nd, 2011, 09:34 PM   #3094
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Quote:
Originally Posted by ChrisZwolle View Post
Seems plausible to me. A traffic light installation for a larger intersection quickly amounts to € 250.000 and a roundabout may run from € 500.000 to € 1 million for a turbo roundabout.

The Netherlands constructed 3.000 roundabouts in the past decade. At € 500.000 per roundabout, this means € 750 million has been spend on roundaboutization here. You can build 50 - 100 km of motorway for that kind of money.
Sounds funny
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Old January 2nd, 2011, 11:36 PM   #3095
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Quote:
Originally Posted by x-type View Post

can you give us some links to prove that? this seems to be incredibly expensive and personaly i won't believe it till i see some reliable source.
(all links in German, with pics)

Here's one relatively current example from last year:
http://www.kn-online.de/lokales/ploe...5000-Euro.html
The town of Plön is replacing four Schilderbrücken with relatively small signs at a local freeway, total cost for all four €375,000.

Pricy electronic display version:
http://www.fernfahrer.de/newsarchiv/...sicherheit.htm
(55 new Verkehrsbrücken with 290 displays total on the A8 costing 21 million Euro - note: pic in link unrelated)

Here's a cheap version, in Fulda on the B458:
http://www.osthessen-news.de/beitrag_I.php?id=1185268
24,000 Euro, sign is 24 m² - Autobahn signs are not only at least twice as big (two standard sizes: 45-50 m² and 55-60 m²), the "bridge" also has to span quite a bit more and be built a bit more... robustly.

Quote:
Originally Posted by ChrisZwolle View Post
Seems plausible to me. A traffic light installation for a larger intersection quickly amounts to € 250.000 and a roundabout may run from € 500.000 to € 1 million for a turbo roundabout.
Roundabouts in Germany are a lot cheaper. Usually €150-200,000 for a smaller one, €300-400,000 for larger, capable ones.
Belgium has similar prices to the Netherlands there btw.

Last edited by kato2k8; January 2nd, 2011 at 11:42 PM.
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Old January 2nd, 2011, 11:39 PM   #3096
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Dutch roundabouts usually have bicycle facilities which would make them somewhat more expensive, plus the soil usually isn't too cooperative, especially out west.
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Old January 3rd, 2011, 12:16 AM   #3097
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Quote:
Originally Posted by kato2k8 View Post
(all links in German, with pics)
horrible prices i was sure that average portal sign doesn't cost more than 3000€.
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Old January 3rd, 2011, 05:32 PM   #3098
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horrible prices i was sure that average portal sign doesn't cost more than 3000€.
For this amount of money you get a sign of this size:

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Old January 3rd, 2011, 07:10 PM   #3099
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the soil usually isn't too cooperative, especially out west.
Then stop expanding your overpopulated country
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Old January 3rd, 2011, 09:08 PM   #3100
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For this amount of money you get a sign of this size:
That is a Rip off.... Why so expensive? Maybe import them from cheaper countries?
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