[talk-au] How do I map left only turning lanes on a motorway?

David Dean ddean at ieee.org
Mon Jan 29 07:02:55 UTC 2018

Hi Joel,

I believe that that example is not mapped correctly, as the turning lane
should only become a separate way when it reaches an actually, physical
separation. While it is just a turning lane, it should just be indicated by
lane tagging on the main way.

I'd move the separation up to the physical separation, and map the turning
lane information on the main way.

We have a few of those in the Brisbane area where intersections are overly
complicated because an early (no longer active) mapper really liked mapping
turning lanes as separate ways, and not all have been fixed.

- David

On Mon, 29 Jan 2018 at 16:59 Joel H. <95.5.radio at gmail.com> wrote:

> Hello, I'm adding lane data to the Inner City Bypass in Brisbane.
> In this spot here: https://www.openstreetmap.org/way/23615424 there is 3
> lanes, however the left turn only lane is already mapped as a separate
> motorway link. My intention is to add turning lane data to this part of
> the ICB.
> Should I map this third left lane on the ICB and move the linking lane
> closer to the turn off. Or should these lanes be as separate roads, as
> it is now with the linking lane having 1 lane and the ICB having 2.
> _______________________________________________
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> Talk-au at openstreetmap.org
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