OpenStreetMap
How to change a juntion to show it's now a tuen left only?
Posted by cmodyssey on 14 November 2010 in English.Hi,
Can someone let me know how I edit OSM to change it from a T juntion being able to turn left and right, to only being able to turn left.
Thanks,
Richard.
Discussion
Comment from marscot on 14 November 2010 at 21:37
at juntion node add this
restriction=no_right_turn
Comment from cmodyssey on 14 November 2010 at 21:47
Hi Marscot,
Thanks for that, I think I've done it right.
Could you take a look if you don't mind pleace.
Thanks,
Richard.
Comment from chillly on 14 November 2010 at 21:49
You might like to look at the more comprehensive relation:
osm.wiki/Turn_restrictions
Comment from marscot on 14 November 2010 at 22:01
you should add except=foot which would let routing programs let people walking turn what ever way they want.
Comment from ALE! on 15 November 2010 at 11:05
AFAIK turn restriction should be a relation and not a node. Also I think that "except=foot" is not necessary.
Comment from Pink Duck on 15 November 2010 at 13:21
Create a new relation, with type=restriction, and restriction=no_right_turn tags and add to the relation the way before the junction with role 'from', the junction node with role 'via' and the restricted right turn way with role 'to'. Be aware that not all routing algorithms currently support turn restrictions, but the surviving ones likely will.
Comment from stephan75 on 15 November 2010 at 16:41
There is even a plugin for the editor JOSM that makes it really very easy to add turn restrictions by the means of a relation ...
osm.wiki/JOSM/Plugins/Turnrestrictions