On 11/01/19 19:51, John Berkers wrote:
Long time lurker, some time editor.
It is my understanding that marked "turn right only lanes" are not
cause to create divergent ways. These should be tagged using the
"lanes" key as per https://wiki.openstreetmap.org/wiki/Key:lanes
Creating divergent ways is considered "Tagging for the renderer" as
the documented separation is not physically there.
I disagree. But then I could be wrong.
In the second (Canberra) example:
Where a solid line exists between the two groups of lanes there is a
'legal barrier' that you cannot legally cross between the two groups of
lanes (2 go right and 2 continues
straight on).
Using the tag lanes does not convey this 'legal barrier'.
Also using the tag lanes how can the turn restrictions that exist be
tagged, the right 2 must turn right and the left 2 must go straight on ?
The first one, in WA, appears less of an issue to me. Perhaps the
separation nodes could be closer to where the ways actually diverge,
somewhere around the mid-point of the dashed lines, rather than at the
start of them.
The second one, near Canberra, has clearly diverged ways most of the
way along the bridge.
This intersection in Melbourne could potentially serve as an example:
https://www.openstreetmap.org/#map=18/-37.93265/145.15653
Where there are actual medians between lanes, the ways separate,
otherwise, they do not.
Hope I haven't spoken out of turn. The views expressed above are my
understanding of the guidelines with respect to mapping what is
actually there.
Regards,
JohnB
On Fri, Jan 11, 2019 at 6:15 PM Graeme Fitzpatrick
<graemefi...@gmail.com <mailto:graemefi...@gmail.com>> wrote:
Resend to include list :-(
Thanks
Graeme
---------- Forwarded message ---------
From: *Graeme Fitzpatrick* <graemefi...@gmail.com
<mailto:graemefi...@gmail.com>>
Date: Fri, 11 Jan 2019 at 17:12
Subject: Re: [talk-au] Editing road geometry Australia
To: Petra Rajka - (p) <petra.ra...@telenav.com
<mailto:petra.ra...@telenav.com>>
On Fri, 11 Jan 2019 at 16:19, Petra Rajka - (p)
<petra.ra...@telenav.com <mailto:petra.ra...@telenav.com>> wrote:
Hi everyone,
I’m Petra and I am part of the mapping team at Telenav.
Since January we started to work on road geometry in Canberra,
Perth and Melbourne and we came across some intersections
where roads (turn lanes) are mapped separately even where
there is no physical divider or chevron markings.
Sorry, Petra, but you've got me, at least, a bit confused?
https://www.openstreetmap.org/edit#map=20/-32.09137/116.01315
certainly appears to show traffic islands (better view with Esri
Clarity)
https://www.openstreetmap.org/edit#map=18/-35.34078/149.16289 has
marked "turn right only" lanes.
Sorry, can't see a problem with either of them, unless you're
looking at something I'm not seeing? :-)
Thanks
Graeme
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