[OSM-talk] railway=narrow_gauge

[David Earl]

Nick wrote:
> In article <68e55ace0706140830u71ad6781g2fad81c6e6e24eaa at mail.gmail.com>,
> Abigail Brady <morwen at evilmagic.org> wrote:
>> This also happens with heritage railways that have been marked
>> railway=preserved.  It's pretty weird to look at.  I guess mapnik just
>> wants preserved|narrow_guage adding to its pattern.
> 
> Is there any particular reason why we don't have railway=single and
> railway=double or similar?
> 
> The lack of this causes some problems where the way can either indicate
> a double line out in the open country or a single line in a station
> area: for example look at the centre of Cambridge on the osmarender
> layer and how the sidings are rendered far too heavily:
> 
> http://www.openstreetmap.org/index.html?lat=52.203304&lon=0.124846&zoom=10

Indeed. I did it like this because there is a large area of railway 
sidings, but in fact there are many more tracks than shown (14 in all, I 
think - I put in 6, including the main line and platform 6 and 4 
non-public siding lines) it just gives an impression. If it rendered 
better, I'd have put more lines in.

 > I notice that the tracks= tag isn't mentioned anywhere on the wiki...

Absolutely. This seems like quite a good idea, but if only a small 
number of people who happen to have invented it or noticed it do it, 
it's a rather pointless non-feature. I'd have used this if it was on 
Map_features.

David