[Tagging] How to tag traffic islands ?

[johnw]

> On Nov 1, 2015, at 3:05 AM, Gerd Petermann <GPetermann_muenchen at hotmail.com> wrote:
> 
> 
> 
> It seems that many mappers associate words like "island" or "traffic island"
> with an area on a road that is enclosed by a white line and
> maybe hatched lines ("schraffiert”)

http://www.openstreetmap.org/#map=19/35.70784/139.75436 <http://www.openstreetmap.org/#map=19/35.70784/139.75436>  a couple types of Islands here. 

anything raised where a normal car is blocked is an island there are islands with just raised kerbs, some with hedges, and some with fences. along the top. 

> I only consider an island if it elevated and tag it as traffic_calming=island.
> If it's painted on, I do not map it as traffic_calming=island. In fact, I personally do not map it at all. 

+1  traffic calming is usually a physical object to force an action you can not “ignore” an island in a standard car. Paint is usually for safety separation, lane alignment, or a buffer for the real island in front. But you can drive over it (and many people do). 


> Not so often: "keep clear”

I have seen the “keep Clear” areas in many places. 
https://www.google.com/maps/@36.38351,139.090018,48m/data=!3m1!1e <https://www.google.com/maps/@36.38351,139.090018,48m/data=!3m1!1e>
 here is one with white stripes in front of a large fire department building. note, this is in the lanes of travel, not at an intersection. 

https://www.google.com/maps/@36.4135414,139.3155541,48m/data=!3m1!1e3 <https://www.google.com/maps/@36.4135414,139.3155541,48m/data=!3m1!1e3>
at an intersection, a red box is used. Cars are not allowed to block the intersection (next to the level crossing).
 both of these are related to the “keep clear” idea. this is very common to see at easily blocked intersections. 


> Can you give an example of this? "Keep clear" for me has no relation to "traffic island" 
> 
> when use the crossing=island tag.
> This seems to me very obvious: if the pdeestrian crossing, eg. a zebra crossing is "protected" by one two traffic islands. Example with two islands: 

in the first OSM link, There is a large island with a ped crosswalk through the end of it. on the right. this seems very common for large roads with islands. 

Javbw

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