[Tagging] lanes tag dispute

Anthony osm at inbox.org
Sun Sep 18 19:00:03 BST 2011

On Sun, Sep 18, 2011 at 1:52 PM, Nathan Edgars II <neroute2 at gmail.com> wrote:
> On 9/18/2011 1:47 PM, Anthony wrote:
>> Ways aren't mapped at the center?  Where are they mapped?
> Somewhere between the two edge lines. Always using the exact center would
> require zigzagging whenever lanes are created or destroyed.

And mapping wherever and however you feel like it makes for less useful maps.

>>> And even if they were, this would only work if there's a median.
>> What's a median got to do with it?
> When there's no median, the center depends on both directions.

If you don't know how many lanes are in each direction, then this is a
problem.  But you can state how many lanes are in each direction
without mapping each lane as a separate way.

>> On Sun, Sep 18, 2011 at 1:40 PM, Nathan Edgars II<neroute2 at gmail.com>
>>  wrote:
>>> Not to mention that the line between the lanes doesn't always go straight
>>> through the intersection.
>> Why does that matter?
> Because if the pre-intersection right lane is directly behind the
> post-intersection center lane, but an angled dashed line forces you into the
> post-intersection right lane, this cannot be determined without mapping this
> somehow.

The way is supposed to follow the angled dashed lines.

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