[OSM-talk] Traffic Signs

[Maarten Deen]

On 2015-09-30 12:22, Martin Koppenhoefer wrote:
> sent from a phone
> 
>> Am 30.09.2015 um 11:46 schrieb Maarten Deen <mdeen at xs4all.nl>:
>> 
>> That turn restriction does not exist in real life, so you shouldn't 
>> add it in OSM ;)
>> 
> 
> 
> I'm not convinced it doesn't exist (the sign says you can enter)
> 
> 
> 
>> But suppose you would solve it like that: you can enter an OSM way 
>> from two or three other ways (T-junction or crossing), do you then 
>> have to make two or three turn restrictions?
> 
> 
> if you split the way with the sign at the projected sign position
> there will be only one way (because signs are rarely in the center of
> a crossing).

Example in case: 
https://www.google.nl/maps/@52.3711881,4.8795496,3a,75y,357.9h,71.43t/data=!3m7!1e1!3m5!1splknSXfDyaN5nx2ujYj0YA!2e0!6s%2F%2Fgeo0.ggpht.com%2Fcbk%3Fpanoid%3DplknSXfDyaN5nx2ujYj0YA%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D96.096642%26pitch%3D0!7i13312!8i6656

Yeah, real sweet if you would split a way up for those 2 meters.

> there is even documentation how to do it (case 8, just discovered this
> myself, thought about restriction=only_u-turn or not_forward but it's
> no_entry): http://wiki.openstreetmap.org/wiki/Relation:restriction

That would be a better option. Also I didn't know that you could enter 
multiple from ways in a relation like that.

Regards,
Maarten