[Tagging] Center turning lanes: centre_turn_lane=yes method vs. lanes:both_ways method

Paul Johnson baloo at ursamundi.org
Sun Feb 19 11:24:05 UTC 2017


On Sat, Feb 18, 2017 at 10:18 AM, Tristan Anderson <
andersontristan at hotmail.com> wrote:

> I've always used
>
>
> lanes=5
>
> centre_turn_lane=yes
>
>
> as a shortcut that implies
>
>
> lanes=5
> lanes:forward=2
> lanes:both_ways=1
> lanes:backward=2
> turn:lanes:both_ways=left
>
> It's just a way to reduce five tags to two in a common, special-case
> situation.  Lanes can be any odd number greater than one.
>

I'm not sure of any data consumers that would assume that shorthand.  I
know Osmand correctly recognizes the latter, but would not parse the
former.
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