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Old November 6th, 2011, 09:16 AM   #541
pt640
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Quote:
Originally Posted by italystf View Post
This is the very first roudabout ever built: Place Charles de Gaulle, Paris (1907):



In Italy the first roundabout was built in Lecco only in 1989, 30 years afrer our first motorways, complex interchanges and rest areas!

maybe not the oldest, but exciting to watch

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Old November 6th, 2011, 09:17 AM   #542
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Banská Bystrica, SK

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Old November 6th, 2011, 11:31 AM   #543
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Rotunda, Florida:
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Old November 6th, 2011, 01:59 PM   #544
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Not a roundabout.

This should be fun: I don't understand how traffic lights at roundabouts work. Can someone explain it to me?
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Old November 6th, 2011, 02:24 PM   #545
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This should be fun: I don't understand how traffic lights at roundabouts work. Can someone explain it to me?
They basically regulate traffic like on normal T-shaped intersections with traffic signals, but you can only turn right onto the roundabout. Traffic signals are often installed at busy multi-lane roundabouts. (those that aren't turbo roundabouts). There is a traffic signal-controlled roundabout in my city, I think it handles about 100,000 vehicles per day in total.
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Old November 6th, 2011, 02:34 PM   #546
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Quote:
Originally Posted by pt640 View Post

Paris, India

how many accidents happen there per day?
in HR there was problem with one quite large roundabout in Zagreb, and somebody got an idea to make regulation as in Paris or Rome. so, to erase all the signalization. now it is really dangerous because they don't drive too slow there, as in Paris.
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Old November 6th, 2011, 02:40 PM   #547
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The Place Charles de Gaulle roundabout is more unique because there are actually 12 streets which enter the roundabout, instead of the usual 4. There is no way you can control that many streets with traffic signals, so this "chaos" is actually the best solution for traffic flow. There are no motorways in central Paris, but the traffic volumes on the Champs Elysées is still very high, I think it may be even up to 100.000 vehicles per day.
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Old November 6th, 2011, 03:00 PM   #548
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you are right. on Plaça Espanya in Barcelona they have installed traffic lights and they just make jams, although it is easier to navigate in the sea of cars with traffic lights.
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Old November 6th, 2011, 03:16 PM   #549
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Bitonto (BA)

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Old November 6th, 2011, 03:44 PM   #550
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Quote:
Originally Posted by italystf View Post
Got ya! It's not a countinue road!

But why did they do this road as such a perfect circle around this town?
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Old November 6th, 2011, 03:49 PM   #551
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Quote:
Originally Posted by ChrisZwolle View Post
The Place Charles de Gaulle roundabout is more unique because there are actually 12 streets which enter the roundabout, instead of the usual 4. There is no way you can control that many streets with traffic signals, so this "chaos" is actually the best solution for traffic flow. There are no motorways in central Paris, but the traffic volumes on the Champs Elysées is still very high, I think it may be even up to 100.000 vehicles per day.
Just out of curiosity, have you ever driven in it? (I haven't, obviously.) I hear it's quite an experience....
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Old November 6th, 2011, 04:06 PM   #552
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Quote:
Originally Posted by Penn's Woods View Post
Just out of curiosity, have you ever driven in it? (I haven't, obviously.) I hear it's quite an experience....
I haven't driven in it, but I've been a passenger there. You just have to be extremely careful at other cars, but the principle is quite simple... for few seconds the traffic flow comes from one direction and after that from the other direction.

Speaking of traffic-light controlled roundabouts, we have 3 in my town (1, 2, 3 - street view available at all 3). All 3 of them are also tram lines interchange. At the 3rd one the traffic lights are installed but they never worked because some streets in that area are u/c. They will work from the end of the year I guess. We also had a 4th roundabout with traffic lights, but during the last years they were turned off because the traffic is much better without them.
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Old November 6th, 2011, 04:13 PM   #553
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The place de l'Etoile (only tourists call it Charles de Gaulle ) is not a roundabout but a traffic circle.
The rules are different:
-In roundabout, cars inside the roundabout have the priority.
-In traffic circle, there is the priority to the right.

Place de la L'Etoile seems to have no rule but if we clearly look the traffic, we see that cars coming from right have the priority.


There is no roundabout inside Paris city limits, as there is no Stop sign.
If you don't see any traffic light, the priority to the right rule apply.
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Last edited by Minato ku; November 6th, 2011 at 04:22 PM.
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Old November 6th, 2011, 08:20 PM   #554
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Have there been any attempts in the past to control the traffic flow at place de l'Etoile?
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Old November 6th, 2011, 08:37 PM   #555
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What are they gonna do? Build a superstack over it? It's fine the way it is. It's the best way...
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Old November 6th, 2011, 09:58 PM   #556
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Quote:
Originally Posted by zsmg View Post
Have there been any attempts in the past to control the traffic flow at place de l'Etoile?
The traffic flow is controled by traffic light in avenues that lead in the traffic circle.







There is also a tunnel going under place de l'Etoile (Avenue Champs Elysées to Avenue de la Grande Armée).
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Last edited by Minato ku; November 6th, 2011 at 10:06 PM.
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Old November 7th, 2011, 05:39 AM   #557
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They are more simple to manage in Mexico people already know how to deal with them, besides the traffic lights are perfectly sinchronized if there is more traffic so that all the cars can pass
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Old November 7th, 2011, 11:02 AM   #558
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I agree, but in the case of paris, It's 12 streets entering the traffic circle, not 4 like in the vid of Mexico City you posted. So that's gonna be a hell of system they need to install in Paris of they want to do that...
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Old November 7th, 2011, 11:37 AM   #559
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Quote:
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What are they gonna do? Build a superstack over it? It's fine the way it is. It's the best way...
I was going to suggest traffic lights, a tunnel and proper road markings. Two of them are already there. :p
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Old November 7th, 2011, 09:52 PM   #560
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Quote:
Originally Posted by Penn's Woods View Post
Why's it called "Railway Roundabout"? I see no sign of a railway. (Are there any on Tasmania?)
The railway once terminated at a station where the roundabout now stands but now terminates at the wharf area. Brooker Ave was constructed in the 1950s.

There certainly are railways here in Tasmania but they are freight only between the larger cities and ports (Burnie-Launceston-Bell Bay-Hobart). There has not been a passenger service since 1975.


©1993 - 2011 The Probert Encyclopaedia

Present day map:


©Tasmanian Government 1998

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