[Talk-us] Center turn lane mapping

Tod Fitch tod at fitchdesign.com
Tue Oct 3 19:59:43 UTC 2017

I switched from using the centre_turn_lane tag to using the turn:lanes tagging when I discovered the turn lanes plugin for JOSM. Between that plugin and the change:lanes plugin I think it is much easier and clearer to tag lanes, including center turn lanes, that it was not too long ago.

Only real complaint I have with the turn lanes plugin is that I prefer to have tag values of the form “left|none|none|right” rather than “left|||right” as it is easier for a human to read. Or at least easier for me to read. You need to check a box that does not stay checked between editing sessions for it to use “none". And it doesn’t put “none” in all the lanes if there are more than a couple of lanes in the same direction.

> On Oct 3, 2017, at 11:49 AM, Martijn van Exel <m at rtijn.org> wrote:
> Hi all, 
> I had a discussion about center turn lane mapping with my team this morning, and I wrote a diary about it proposing one consistent scheme to tag them. Not a new scheme, but using the existing lanes / turn:lanes schema as already implemented by the JOSM plugin, in favor of the centre_turn_lane tag. The diary is here: https://www.openstreetmap.org/user/mvexel/diary/42432 <https://www.openstreetmap.org/user/mvexel/diary/42432> 
> If you could take the time to share your opinion there I would surely appreciate it!
> Thanks,
> Martijn
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