[Talk-transit] [Spam] Re: Multiple tracks

Frankie Roberto frankie at frankieroberto.com
Wed Jun 24 15:11:33 BST 2009


On Wed, Jun 24, 2009 at 2:45 PM, Richard Mann <
richard.mann.westoxford at googlemail.com> wrote:

>
> Do relations solve the problem at all? If a track is part of a route
>> relation, then could a renderer use that as a means of aggregating the
>> tracks together?
>
>
> My hunch is that relations probably don't actually help much, unless you
> could rely on them being done consistently and accurately.
>

Hmm...

One idea another OSMer suggested a while back (when the idea of tagging
tracks still sounded ridiculous) is to have some way of distinguishing
between a 'track' and a railway line (or 'corridor' is perhaps a better
word), so that renderers can choose which to display (and so that the data
contains both conceptually different things).

Not sure how best to implement this. The easiest thing would be to have the
middle track double up as the way which represents the line, somehow. The
hardest thing might be to have ways which mark both edges of the rail
corridor (like how we do riverbanks).

Frankie

-- 
Frankie Roberto
Experience Designer, Rattle
0114 2706977
http://www.rattlecentral.com
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