<div dir="ltr"><div><div><div><div>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 <a href="http://fr.wikipedia.org/wiki/Carrefour_giratoire" target="_blank">http://fr.wikipedia.org/wiki/Carrefour_giratoire</a><br>
</div>This was one of the particularities you needed to be aware of living in Germany near the border and crossing over into France frequently. <br></div>Only relatively recently (1984) the French introduced the roundabout with priority in the ring.<br>
</div>As the Wikipedia article shows, the original French sign for roundabout implied the priorité a droite and is identical to the one shown in the Croatian example (<a href="https://maps.google.hr/?ll=45.492397,15.549753&spn=0.004543,0.00883&t=h&z=17&layer=c&cbll=45.492457,15.549814&panoid=606WGc-Rt8U3f-UU0k0WLQ&cbp=12,196.42,,0,11.92">https://maps.google.hr/?ll=45.492397,15.549753&spn=0.004543,0.00883&t=h&z=17&layer=c&cbll=45.492457,15.549814&panoid=606WGc-Rt8U3f-UU0k0WLQ&cbp=12,196.42,,0,11.92</a>)?<br>
</div>Janko may be able to confirm that the Croatian Highway Code gives the priority to the right in roundabouts.<br><br><br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On 18 June 2014 02:37, Fernando Trebien <span dir="ltr"><<a href="mailto:fernando.trebien@gmail.com" target="_blank">fernando.trebien@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">IMHO I think that the main idea in the concept of "roundabout" is that<br>
the center of the cycle (which may not be a perfect circle, sometimes<br>
not even an ellipse) has right of way over entering traffic. That's<br>
why I find it weird when:<br>
- Croatian (and perhaps some other) authorities apply the roundabout<br>
sign to a circle where entering traffic has right of way (that's the<br>
exact opposite of the original idea)<br>
- US authorities won't consider a roundabout a circle when all<br>
entrances have "stop" signs<br>
- Brazilians (but not the authorities) call pretty much any circular<br>
structure a "roundabout" (I'm Brazilian btw)<br>
<br>
However, these could probably be considered local adaptations of the<br>
original concept - which kind of defeat its original purpose.<br>
<br>
When using navigation apps, it makes sense to get special instructions<br>
only (and always) when you have right of way because of the many<br>
factors the driver needs to pay attention to while in the circle. In<br>
other non-roundabout circles, the driver has to stop within the<br>
circle, so he/she may receive additional voice instructions at each<br>
stop.<br>
<br>
Other than navigation, I don't see a good reason to tag roundabouts.<br>
<div class="HOEnZb"><div class="h5"><br>
On Tue, Jun 17, 2014 at 6:42 PM, Paul Johnson <<a href="mailto:baloo@ursamundi.org">baloo@ursamundi.org</a>> wrote:<br>
> Wonder if we're talking regional differences. The south of France is known<br>
> to follow the Vienna Convention on Traffic (traffic in the circle yields to<br>
> traffic entering from the right), and the US and Canada make no signage<br>
> differences between a roundabout and a traffic circle. For navigation<br>
> purposes, they're functionally identical contexts, as to who has the right<br>
> of way, I believe that should be best clarified by strategically placed<br>
> nodes or relations for traffic signals, stop or give way.<br>
><br>
> On Jun 17, 2014 4:27 PM, "Volker Schmidt" <<a href="mailto:voschix@gmail.com">voschix@gmail.com</a>> wrote:<br>
>><br>
>> No. One of the characteristics of a roundabout is that you have precedence<br>
>> when you are in it. In this case there is a main road that has precedence<br>
>> over the two minor roads.<br>
>> If you want to turn left (looking in the direction of the photo) you have<br>
>> to yield to oncoming traffic coming from the opposite direction.<br>
>> This is a main road crossing a minor road with an island (or short piece<br>
>> of dual carriageway) in the middle of the junction<br>
>><br>
>><br>
>> On 17 June 2014 22:47, Paul Johnson <<a href="mailto:baloo@ursamundi.org">baloo@ursamundi.org</a>> wrote:<br>
>>><br>
>>> I'd call it a full blown roundabout, since you're still expected to go<br>
>>> around it to the right in order to go left.<br>
>>><br>
>>> On Jun 17, 2014 3:43 PM, "Tod Fitch" <<a href="mailto:tod@fitchdesign.com">tod@fitchdesign.com</a>> wrote:<br>
>>>><br>
>>>> How would you tag this intersection in Mountain View, California?<br>
>>>><br>
>>>><br>
>>>> <a href="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" target="_blank">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</a><br>
>>>><br>
>>>> Should it be tagged as traffic_calming=island instead of<br>
>>>> highway=mini_roundabout?<br>
>>>><br>
>>>> On Jun 17, 2014, at 1:10 PM, Paul Johnson wrote:<br>
>>>><br>
>>>> > Not as rare as you think, and growing more common. I go through 2 or<br>
>>>> > 3 roundabouts regularly. The US official definitions defined in the MUTCD<br>
>>>> > are that roundabouts are uncontrolled or have yield signs entering, traffic<br>
>>>> > circles have stop signs. Neither are signal controlled in the MUTCD. We do<br>
>>>> > not have anything equivalent to the mini roundabout in the US (and likely<br>
>>>> > Canada, Puerto Rico, Guam, and the US Virgin Islands) at all, so<br>
>>>> > intersections tagged as such are probably wrong.<br>
>>>> ><br>
>>>><br>
>>>><br>
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</div></div><div class="im HOEnZb">--<br>
Fernando Trebien<br>
<a href="tel:%2B55%20%2851%29%209962-5409" value="+555199625409">+55 (51) 9962-5409</a><br>
<br>
"Nullius in verba."<br>
<br>
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