Re: [talk-au] How to tag a non-existent road

2009-10-12 Thread Matt White
John Smith wrote:
 2009/10/12 Ross Scanlon i...@4x4falcon.com:
   
 If it's from the DCDB data then highway=gazetted_road and don't put anything 
 in the renderer to show them.
 

 At the moment it's suggested to use highway=road and I was thinking of
 doing a special style sheet for mapnik to highlight these sorts of
 roads so they'd be easier to find to verify, your suggestion would be
 fine too, but we still need some other tag then to know they don't
 exist, compared to haven't been checked.

   
 They will then show up in the editors and people can then map them using gps 
 etc when able.
 

 Once we have figured out what we can submit patches so they show up
 differently if they don't exist, compared to maybe exist.
   
highway=ghost_road

I just made that up... so don't actually use :)

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[talk-au] Rural Road Numbering...

2009-10-12 Thread John Smith
There has been some discussion on the tagging list about what to do
with rural road numbering. For people unaware there was a standard
created to renumber rural roads to make it easier for services,
especially emergency services, to locate properties. They used
decametres (10s of metres) from some arbitary start point, usually
from a locality outwards. Odds are always allocated to the left, and
even numbers to the right.

While this won't be useful for rendering it would be potentially very
useful for routing software, since the software just has to know the
start point and estimate the approximate distance and then point to
the left or right side of the road. Routing software could even be
coded to collect all such requests to a central database, or the OSM
DB directly to be used for rendering.

This numbering scheme is published as an Australian/New Zealand
Standard, AS/NZS 4724:2000 Geographic Information – Rural Addressing.

Currently I'm thinking we could tag roads as numbering=as/nzs or
something similar, and then the only problem then is how to tag the
start/end of a numbering section, based on that standard major roads
are broken up into sections of 100km.

Liz found a document produced by Land Victoria, including some useful
tips in section 6 on how councils could renumber properties safely may
be useful for us.

http://tinyurl.com/yhv7ady

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