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Old November 21st, 2007, 12:10 PM   #441
ChrisZwolle
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It's sense.

However, to me, a lot of German Autobahnen are outdated when it comes to geometry. Way too small cloverleafs, low speed exits, and short on and offramps or merging lanes.

But then again, maybe we are spoiled in the Netherlands with luxury-length merging lanes.
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Old November 21st, 2007, 02:03 PM   #442
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I am curious, what are the minimum requirements for acceleration/deceleration lane lengths in Germany and all throughout Europe? According to Wikipedia, in Ontario the minimum is 150 m on 400-series highways, although I think they are usually significantly longer in many areas.

EDIT: Just found out that in the Netherlands it's 350 m apparently. That's really impressive.
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Old November 21st, 2007, 04:06 PM   #443
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Quote:
Originally Posted by Patrick View Post
and that one is not either (but I don't say that mine here is )

of course it can make sence, if his most important reason is legal fast and almost save driving the same time. just like i do. of course for example the A3 between Köln and Frankfurt is not perfect considering smoothness, but I don't care when driving fast as long I don't bump every few seconds like on some old parts of the A48 or A1 between Koblenz and Trier.
But he´s German and havn´t even written
Deutsche Autobahnen sind die besten

how can that happen
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Old November 21st, 2007, 04:10 PM   #444
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Great looking Autobahns!
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Old November 21st, 2007, 06:18 PM   #445
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Acceleration/decelaration lanes are 250m long in Germany. Exceptions are Reichsautobahn sections which haven't been upgradet yet or in some urban areas where there are many exits on a short distance and place is limited (i.e. A100 in Berlin).
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Old November 21st, 2007, 06:21 PM   #446
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1.) the sentence is nearly correct: "Deutsche Autobahnen sind die Besten"

2.) better a low speed exit than no exit

... this soon will also come in austria because we need more exits and entries but don´t have everywhere enough space for them like we build it 20 years ago ...


regards
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Old November 21st, 2007, 07:07 PM   #447
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Quote:
Originally Posted by Chriszwolle View Post
But then again, maybe we are spoiled in the Netherlands with luxury-length merging lanes.
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Old November 21st, 2007, 09:29 PM   #448
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Quote:
Originally Posted by Alex Von Königsberg View Post
Hehe, I also noticed the same Some hollanders may slowly overtake several cars without giving a thought that someone might want to drive faster than them.
At least they not American drivers. If they were, they more likely to drive at or below the limit and stay there, even if they pissing everyone else behind them or they not passing anybody on a empty freeway.

Last edited by LtBk; November 22nd, 2007 at 06:16 AM.
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Old November 22nd, 2007, 01:17 AM   #449
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Quote:
Originally Posted by Energy2003 View Post
1.) the sentence is nearly correct: "Deutsche Autobahnen sind die Besten"

2.) better a low speed exit than no exit

... this soon will also come in austria because we need more exits and entries but don´t have everywhere enough space for them like we build it 20 years ago ...


regards
He said Die beste, not die besten which is correct, so no that´s not correct. Anyway doesn´t matter really.
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Old November 22nd, 2007, 05:16 AM   #450
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The Germans take their expressways quite seriously.
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Old November 24th, 2007, 01:30 PM   #451
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rather the people who live around Germany
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Old November 24th, 2007, 02:04 PM   #452
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Quote:
Originally Posted by Rohne View Post
Acceleration/decelaration lanes are 250m long in Germany. Exceptions are Reichsautobahn sections which haven't been upgradet yet or in some urban areas where there are many exits on a short distance and place is limited (i.e. A100 in Berlin).
A5 between Gießen and Hattenbach (exit 6: Homberg (Ohm) )

other direction

www.rippachtal.de

there are other examples of course, e.g. exit 10 on A48 westbound, Koblenz-Nord, where the deceleration lane begins a few meters in front of the announcement sign 1000 meters before the exit comes.

Last edited by Patrick; November 24th, 2007 at 03:11 PM.
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Old November 24th, 2007, 02:42 PM   #453
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Quote:
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A5 between Gießen and Hattenbach (exit 6: Homberg (Ohm) )

other direction

www.rippachtal.de
and they dissed the the narrowest exit of the Struma motroway
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Old November 24th, 2007, 02:45 PM   #454
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The difference is that the Struma is brand new, and this one is likely over 40 years old, so you can't compare. This German exit (like many others) stinks in geometry nowadays by the way.

Though they don't seem to give it a high priority, such exits would be out of the question in the Netherlands.
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Old November 24th, 2007, 03:09 PM   #455
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It looks in those pictures like the ramp veers off as soon as it cuts off from the freeway. It that correct? Seems kind of quick.
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Old November 24th, 2007, 03:29 PM   #456
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the asphalt on this Autobahn looks really bad, it surely isn´t nice to drive there. I think they need to repair it because it sucks. Lots of Aubotahns are being repaired, si this one being repaired, too?
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Old November 24th, 2007, 04:38 PM   #457
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Quote:
Originally Posted by rick1016 View Post
It looks in those pictures like the ramp veers off as soon as it cuts off from the freeway. It that correct? Seems kind of quick.
unfortunately, my internet is so slow that google maps doesn't work properly here. maybe someone can take a screenshot of this exit there? but i don't know if it is in high-res. the exit is between Bernsfeld and Mücke, east of Gießen, north of Frankfurt.



afaik they are currently adding the emergency lanes on this section. about repairing i don't know. but it wouldn't make sense if they didn't. rohne may know more.

Last edited by Patrick; November 24th, 2007 at 04:45 PM.
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Old November 25th, 2007, 04:36 AM   #458
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Quote:
Originally Posted by Patrick View Post
unfortunately, my internet is so slow that google maps doesn't work properly here. maybe someone can take a screenshot of this exit there?
Here you are:


Looks like a classic example of exit built in 1930's and never rebuilt since. Only the acceleration/decelaration lanes in one direction were added - the other direction is blocked by a narrow bridge... I'd also expect that under the asphalt one would find old concrete paving...

Seems like this autobahn is waiting for the planned upgrade to 2x3...?
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Old November 25th, 2007, 10:13 AM   #459
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Oh wow that entrance lane looks almost non-existent, it looks like the acceleration strip just joins the motorway at an almost 90-degree angle, without a significant length running parallel to the motorway. I don't see how one can join the motorway if one is already going at a high speed but there is a car in the right lane.

The exit is also short, reminds me of some exits I've seen on 2-lane roads in Ontario. Wouldn't you need to start decelerating on the motorway itself, before merging into the exit?

These pictures are quite surprising. What is the speed limit (if any) on that stretch of road?
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Old November 25th, 2007, 11:38 AM   #460
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Both ramps on the right are pretty short, yes. Seems that they've added the exit afterwards and didn't want to rebuild the bridge.

But that's the only unusual thing of it, the angle the ramps are joining the motorway are normal this way and no problem to drive (normally, you don't go faster than 130kph on the right lane).
Btw, the acceleration lane is one of the very few places on German roads where it is allowed to overtake on the right lane. So, you can overtake a truck or a slow driving car (on the right lane) before entering the motorway.
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