If I am not mistaken, the French were the first to have roaundabouts in
quantities, but they all had the priority-to-the-right rule at the time,
i.e. the priority was to the traffic entering the circle. See
http://fr.wikipedia.org/wiki/Carrefour_giratoire
This was one of the particularities you
On Wed, Jun 18, 2014 at 8:38 AM, Volker Schmidt vosc...@gmail.com wrote:
Only relatively recently (1984) the French introduced the roundabout with
priority in the ring.
Today, most of the roundabouts in France are ... roundabouts where
traffic in the ring has right of way and they are tagged
Am 17/giu/2014 um 22:47 schrieb Paul Johnson ba...@ursamundi.org:
I'd call it a full blown roundabout, since you're still expected to go around
it to the right in order to go left.
+1, this is by no means a mini roundabout.
cheers,
Martin
___
On Wed, Jun 18, 2014 at 10:43 AM, Pieren pier...@gmail.com wrote:
Btw, we also have some special cases like this one:
http://www.openstreetmap.org/#map=19/47.20880/-1.58741layers=N
where a tramway is crossing the roundabout. It's a normal roundabout
(not a traffic circle) excepted that traffic
On 2014-06-17 at 14:49:33 -0400, Phil! Gold wrote:
* Martin Koppenhoefer dieterdre...@gmail.com [2014-06-17 16:43 +0200]:
you can find big roundabouts with traffic lights in most of the big
European cities, another reason (besides the controlling the motorized
traffic) is to let pedestrians
2014-06-18 11:06 GMT+02:00 Elena ``of Valhalla'' elena.valha...@gmail.com:
+1, any case where the traffic light is usually off (or blinking yellow)
and normal roundabout rules apply except for sporadic events (pedestrian
crossings, too much traffic on some direction, etc.) walks and quacks
On Wed, Jun 18, 2014 at 1:42 PM, Janko Mihelić jan...@gmail.com wrote:
I've never heard of this turning circle term. Maybe we should call this a
turning circle, and then beg routing application developers to treat it the
same as roundabout.
Currently, the wiki suggests to tag equally both
2014-06-18 13:57 GMT+02:00 Pieren pier...@gmail.com:
Currently, the wiki suggests to tag equally both types of junctions
([1]). To avoid confusion, we could use a specific tag like
junction=traffic_circle (already 33 in taginfo) (then we could
discuss about the oneway=yes implied or not).
The routing app could also say go to the first circle and then take
the second exit and it would be well understood too, I think. If the
user is aware of the differences between a roundabout and a traffic
circle, he/she will even know beforehand if they're supposed to
stop/yield at the entrances
On Sat, Jun 14, 2014 at 9:41 AM, Philip Barnes p...@trigpoint.me.uk wrote:
This roundabout originally had no lights, but they were added with the
ring road.
Interesting. Now you get the disadvantages of both systems : you have
the unnecessary waitings on red lights and you use a maximum of
There is a similar situation near Geel, Belgium. First they constructed
several roundabouts along the R14, then they turned them back to regular
crossings
Only the roundabout with the N19 is kept at the moment, but there they
placed traffic signals (http://osm.org/go/0ErQgoDk--?m=relation=1263541
2014-06-17 16:29 GMT+02:00 Marc Gemis marc.ge...@gmail.com:
There is a similar situation near Geel, Belgium. First they constructed
several roundabouts along the R14, then they turned them back to regular
crossings
Only the roundabout with the N19 is kept at the moment, but there they
placed
* Martin Koppenhoefer dieterdre...@gmail.com [2014-06-17 16:43 +0200]:
you can find big roundabouts with traffic lights in most of the big
European cities, another reason (besides the controlling the motorized
traffic) is to let pedestrians (and sometimes cyclists) cross.
I know of a traffic
Not as rare as you think, and growing more common. I go through 2 or 3
roundabouts regularly. The US official definitions defined in the MUTCD
are that roundabouts are uncontrolled or have yield signs entering, traffic
circles have stop signs. Neither are signal controlled in the MUTCD. We
do
At least one roundabout in Portland is actually square.
On Jun 13, 2014 3:15 PM, Martin Koppenhoefer dieterdre...@gmail.com
wrote:
Am 13/giu/2014 um 18:28 schrieb Clay Smalley claysmal...@gmail.com:
Out of curiosity, what are others' criteria for a roundabout?
priority for the inner
Arc du Triumph?
On Jun 17, 2014 8:32 AM, Pieren pier...@gmail.com wrote:
On Sat, Jun 14, 2014 at 9:41 AM, Philip Barnes p...@trigpoint.me.uk
wrote:
This roundabout originally had no lights, but they were added with the
ring road.
Interesting. Now you get the disadvantages of both systems
How would you tag this intersection in Mountain View, California?
https://www.google.com/maps/place/Mountain+View,+CA/@37.387343,-122.080352,3a,89.9y,118.3h,70.82t/data=!3m4!1e1!3m2!1sHblffm0KZ7pzUXLakrlBQw!2e0!4m2!3m1!1s0x808fb7495bec0189:0x7c17d44a466baf9b
Should it be tagged as
I'd call it a full blown roundabout, since you're still expected to go
around it to the right in order to go left.
On Jun 17, 2014 3:43 PM, Tod Fitch t...@fitchdesign.com wrote:
How would you tag this intersection in Mountain View, California?
It's certainly not a mini-roundabout, because the centre piece is not
intended to be traversed by vehicles (see
http://wiki.openstreetmap.org/wiki/Tag:highway%3Dmini_roundabout)
On 17 June 2014 22:43, Tod Fitch t...@fitchdesign.com wrote:
How would you tag this intersection in Mountain View,
No. One of the characteristics of a roundabout is that you have precedence
when you are in it. In this case there is a main road that has precedence
over the two minor roads.
If you want to turn left (looking in the direction of the photo) you have
to yield to oncoming traffic coming from the
Wow, really? Got a photo?
On Jun 17, 2014 4:22 PM, Clifford Snow cliff...@snowandsnow.us wrote:
I've seen one actual mini round about in Seattle and one in Mount Vernon.
Certainly there are numerous traffic calming islands incorrectly tagged as
mini runabouts.
On Jun 17, 2014 1:10 PM, Paul
Wonder if we're talking regional differences. The south of France is known
to follow the Vienna Convention on Traffic (traffic in the circle yields to
traffic entering from the right), and the US and Canada make no signage
differences between a roundabout and a traffic circle. For navigation
IMHO I think that the main idea in the concept of roundabout is that
the center of the cycle (which may not be a perfect circle, sometimes
not even an ellipse) has right of way over entering traffic. That's
why I find it weird when:
- Croatian (and perhaps some other) authorities apply the
Am 13/giu/2014 um 23:20 schrieb Janko Mihelić jan...@gmail.com:
There's a town in Croatia where all roundabouts have a roundabout sign, but
the traffic entering the roundabout has right of way. How do we tag that?
Link to streetview of one such roundabout.
nice. I'd ask the local
I think I should comment on this, I know this roundabout very well,
actually too well.
It is definitely a roundabout, that is how it is know in the UK, and in
common with many signalised roundabouts, not all traffic joining is
under traffic light control, these routes do give way to traffic on
On 13 June 2014 16:54, Fernando Trebien fernando.treb...@gmail.com wrote:
So why is it a roundabout? Is it because of the circular shape? Or
could it be because it's impossible to infer that any of the entering
ways have right of way, since they are all controlled by traffic
lights?
I don't
Roundabouts like this sometimes (in Britain) have part time traffic
lights. So, some times of day it is a true roundabout, and some times
of day it is a circle of road with traffic signals! I don't know the
one you linked, to but it's possible that is what is going on here.
Dan
2014-06-13 16:54
Good question.
I think this is because originally it was, as many others in the UK, a true
roundabout with priority in the ring. The traffic signals were added later
to avoid blocking up the (ex-)roundabouts. I have seen many roundabouts in
the UK go through these phases: New clean roundabout;
Coming from the US where any form of roundabout is rare, I would consider
any circular intersection a roundabout. Some have signals, some don't have
signals. I know that some people in the US distinguish between the two,
where a 'roundabout' has no signals and a 'traffic circle' does have
signals.
I think we should call this a roundabout because it's round, and the
general public calls it a roundabout whatever the rules and laws say. If
some roundabouts are not real roundabouts, we can tag that with subtags,
roundabout=unofficial or something. If we want to tag right of way, we tag
that
A signal-controlled roundabout reverts to being a normal roundabout if
the traffic signals are not working (assuming it is also signed as a
roundabout), so the presence/absence of the traffic signals cannot be a
criterion for it being a roundabout or not.
I expect most countries will have a
Am 13/giu/2014 um 18:32 schrieb Janko Mihelić jan...@gmail.com:
I think we should call this a roundabout because it's round, and the general
public calls it a roundabout whatever the rules and laws say.
-1, only roundabouts should get the tag, and roundabouts are only situations
where
Am 13/giu/2014 um 18:28 schrieb Clay Smalley claysmal...@gmail.com:
Out of curiosity, what are others' criteria for a roundabout?
priority for the inner traffic is the main
circular is not a requirement, can have any shape (usually they are indeed
circular)
cheers,
Martin
Great, so my assumptions were mostly correct, except in the case of
traffic lights inside the roundabout and on its entrances.
I did find some roundabouts that are not perfectly circular in a small
town here in Brazil. They resemble the figure of the number 8 (the
mapping of the area is still
2014-06-13 22:11 GMT+02:00 Martin Koppenhoefer dieterdre...@gmail.com:
-1, only roundabouts should get the tag, and roundabouts are only
situations where the traffic inside has the priority (traffic lights or
not).
Usually a roundabout has its sign (might differ according to the country )
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