Re: [talk-au] Alphanumeric references in NSW

2013-05-10 Thread Ian Sergeant
Okay, I've updated the part of the wiki that says we shouldn't do it.

https://wiki.openstreetmap.org/wiki/Australian_Tagging_Guidelines#NSW_Alphanumeric_references

Ian.



On 10 May 2013 09:45, Ben Kelley ben.kel...@gmail.com wrote:

 Hi.

 The new routes are supposed to be complete by the end of this year.

 I know it takes me a while to get around to fixing something on OSM.

 Perhaps if you are keen then approach 2 is OK (and signage will catch up
 eventually). If you are lazy then 1 is the default. :)

   - Ben Kelley.
  On 10 May 2013 07:06, Ian Sergeant inas66+...@gmail.com wrote:

 Hi,

 I'm surprised you couldn't find some F3 signs there as well!

 In any event, we can..

 1. Ignore the new routes until they are completed.  Then re-reference the
 road.
 2. As soon as the route is confirmed and there are some signs,
 re-reference the road
 3. Adopt some new schema that allows us to have both route references at
 once.
 4. Adopt of hodge-podge approach, and reference partial roads, based on
 the assessment/whim of the mapper concerned.

 I originally proposed 1, but now I'm leaning towards 2, because I feel
 I'm swimming against the tide.

 I don't think we're capable of doing 3.  And I'd hate to end up with 4.

 Ian.


 On 10 May 2013 05:29, Ben Johnson tangarar...@gmail.com wrote:

 I took a look there last weekend. As you say... inconsistencies
 everywhere.

 Northbound all are M1 with B74, and there's even a distance reassurance
 sign (not interchange-related) showing distances to Brisbane, titled M1
 Pacific Mwy which I was surprised to see.

 Southbound all are NR1 with B74.

 The signs at the top of the ramps are in odd combinations like NR1
 Pacific Mwy on one sign, and M1 Freeway on another...

 It's a real tourist attraction for sign geeks!

 BJ

 On 09/05/2013, at 22:11, Nathan Van Der Meulen natvan...@yahoo.com
 wrote:

  You're not going to win any way you change the route references.  On
 the ground, around the Tuggerah Interchange alone are references to Nat
 Route 1, M1, Pacific Motorway etc.  Note that the freeway is referenced as
 M1 from Wyong Rd (B74) but on the freeway it's still NR1.  B74 only seems
 to be referenced at the interchange.  If you only edit as per what's on the
 ground, how do you edit that?
 
  Sent from my iPad
 
  On 03/05/2013, at 21:00, talk-au-requ...@openstreetmap.org wrote:
 
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  Today's Topics:
 
   1. Alphanumeric references in NSW (Ian Sergeant)
   2. Re: Alphanumeric references in NSW (Ben Kelley)
   3. Re: Alphanumeric references in NSW (Ian Sergeant)
   4. Re: Alphanumeric references in NSW (Ben Johnson)
   5. Re: Alphanumeric references in NSW (Ian Sergeant)
 
 
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  Message: 1
  Date: Fri, 3 May 2013 15:07:02 +1000
  From: Ian Sergeant inas66+...@gmail.com
  To: OSM - Talk-au Talk-au@openstreetmap.org
  Subject: [talk-au] Alphanumeric references in NSW
  Message-ID:
CALDa4YLY+4KEnutrnBmjcRpE5z3G5hH4z6Yzyu=duwiw5sn...@mail.gmail.com
 
  Content-Type: text/plain; charset=iso-8859-1
 
  Hi,
 
  I've noticed a few people are changing the references in NSW to the
  alphanumeric references before the signage has changed.
 
  I don't see the purpose of this.  I doesn't correspond to what is on
 the
  ground, it must be confusing to people actually trying to use OSM for
  navigation.  Also, given it is the RTA coordinate this, it wouldn't be
  surprising if some of the routes actually differed from the proposed
 routes
  on the webpage.
 
  To the best of my knowledge the only route that has been
 re-referenced is
  the B73, the others still retain their existing signage - with
 perhaps an
  uncovered sign here and there.  I traced the
 
  I'd suggest we can use the wiki to coordinate as these references
 change?
  That way we can ensure the entire route is renamed at once, rather
 than a
  patchwork?
 
  Ian.
  P.S. Of course there have been a few routes (M7, A31/M31 approaching
  Albury) that have been this way for a while, and aren't at issue here.
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  Message: 2
  Date: Fri, 3 May 2013 15:33:45 +1000
  From: Ben Kelley ben.kel...@gmail.com
  To: Ian Sergeant inas66+...@gmail.com
  Cc: OSM - Talk-au Talk-au@openstreetmap.org
  Subject: Re: [talk-au] Alphanumeric references in 

Re: [talk-au] Major 4WD tracks

2013-05-10 Thread Steve Bennett
On Fri, May 10, 2013 at 1:47 PM, Li Xia lisxia1...@gmail.com wrote:
 Major 4wd tracks such as

 Birdsville track
 Old telegraph track
 Wonagatta rd
 Etc

Hi Li,
  Still not clear on what you mean by major. Do you mean important,
significant, famous...or do you mean big,well-maintained etc?
If the former, I'd think a route relation (as I described earlier),
but you'd need an authoritative source for what the route is.

PS Don't forget to reply-all.

Steve

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Re: [talk-au] Major 4WD tracks

2013-05-10 Thread Li Xia
Significant was what I meant. Using route relation makes sense.
—
Li

On Fri, May 10, 2013 at 4:48 PM, Steve Bennett stevag...@gmail.com
wrote:

 On Fri, May 10, 2013 at 1:47 PM, Li Xia lisxia1...@gmail.com wrote:
 Major 4wd tracks such as

 Birdsville track
 Old telegraph track
 Wonagatta rd
 Etc
 Hi Li,
   Still not clear on what you mean by major. Do you mean important,
 significant, famous...or do you mean big,well-maintained etc?
 If the former, I'd think a route relation (as I described earlier),
 but you'd need an authoritative source for what the route is.
 PS Don't forget to reply-all.
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Re: [talk-au] OpenStreetMap in Government

2013-05-10 Thread Steve Bennett
Hi all,
  This is a really interesting discussion, and thanks for the insights
about Australia vs Europe vs US. A few comments:

1) I think TileMill/MapBox will be a game changer for the rendering
guys won't listen to us problem. I suspect it will soon be much, much
easier to have lots of different map views out there, and we can
create Australian-specific maps easily. So we should continue to work
out the best tagging system and use that - even if it's not currently
supported by any rendering styles.
2) If we do use tags that are essentially unique to Australia, we
should consider still doubling up with standard tags where convenient.
If 4wd_only means you shouldn't attempt this track without a 4 wheel
drive, even if this particular section is ok, then we can still add
track_type tags to the relevant sections, if known.
3) There are decades of practice in cartography to learn from. We
might as well go with existing practice in current 4WD maps. The
standard distinctions seem to be something like 4WD/2WD/dirt/sealed,
and sometimes one more category indicating something like possibly
impassable. So no need for the 10 point roughness/tracktype scale -
it's too hard.
4) And yes, we should have simple tags that correspond to existing
cartography practice: MVO, (subject to seasonal closure) and 4WD
only.

Steve

On Fri, May 10, 2013 at 3:48 PM, David dban...@internode.on.net wrote:
 Kristy, you have spotted the problem, no clear acceptance of any one standard 
 when it comes to 4wd tracks. And while its being done a number of different 
 ways (or not done at all) we have little chance of getting the rendering 
 people to listen to us.

 In western Europe, little interest, complete lack of understanding of the 
 need. The US does have some great 4wd tracks but they are more recreational 
 in nature, you go somewhere, drive a great track and then go home. They also 
 don't understand our model of using these tracks to get to somewhere really 
 interesting !  Asia, (far) eastern Europe, get it but don't seem to want to 
 support the ideas.

 I believe (strongly) we need a multi level tag that indicates a track is 
 somewhere between a bit dodgy right through to Oh wow. That, by its very 
 nature means its subjective, you and I might well disagree with at what stage 
 a typical SUV and inexperienced driver should be warned off. We cannot help 
 that, 4wds are all different, drivers are different in their skills and 
 willingness to take risks.

  The 4wd_only tag is 'official' and was a good try. But not used very much 
 outside of Oz. And its a yes/no and life is never a yes/no situation. 
 Further, so much OSM data ends up in a psql database, one column per tag. 
 Believe it or not, psql does not like having column names start with 
 numerals. It can be worked around but I suspect that's one reason mapnik (or 
 more correctly, its slippery map) won't show 4wd_only.

 I prefer an extension to the tracktype= tag, its already widely used 
 internationally and, somewhat, rendered on the slippery map. We can add three 
 more levels to it (grade6, grade7, grade8) being possibly not suitable for 
 conventional car, 4wd stuff and 4wd extreme.

 I currently use both 4wd_only= and tracktype=

 But I would support any new, sufficiently flexible proposal.

 I don't really this a physical meet up is necessary, be surprised if we could 
 agree on a convienant location !

 David
 .

 Kristy Van Putten kristy.vanput...@gmail.com wrote:

Hi Matt,
I think your conclusions is right, that we need to put an Australian standard 
together.  It sounds like the ground work has been done (maybe even multiple 
times) but there has not been a clear acceptance of any particular schema.

How do you think we should go forward with this?  My suggestion is that we 
make a weekend of it, where we come together - where there are plenty of 
different types of 4WD tracks - and try and test the schema already made.  I 
know I am still living outside of the country, so for me this maybe hard over 
the next couple of months. I am home in July for a couple of weeks and I am 
sure I could convince someone to lend me a 4WD.  However it is winter, so it 
won't be the warmest weather! Maybe we could wait till summer?

Would anyone be keen?

Cheers



On 06/05/2013, at 4:22 PM, Matt White mattwh...@iinet.com.au wrote:

 I'm also very interested in 4wd trails - it's what 80% of my mapping 
 consists of I think (that, and house numbers in the inner north of 
 Melbourne)

 The current 4wd_only tag was one of the tags I proposed a few years ago - 
 there was a massive barney at the time over the smoothness=* and surface=* 
 tags, and all I wanted to do was mark roads that were clearly tagged as 4wd 
 only (proper 4wd as in low range, high clearance). The surface/smoothness 
 debate was interesting, but got in the way of the larger problem.

 I've come to the conclusion that the Australian mappers pretty much have to 
 go it alone in this area - what the 

Re: [talk-au] OpenStreetMap in Government

2013-05-10 Thread Michael Gratton
On 10/05/13 17:01, Steve Bennett wrote:
 1) I think TileMill/MapBox will be a game changer for the rendering
 guys won't listen to us problem. I suspect it will soon be much, much
 easier to have lots of different map views out there, and we can
 create Australian-specific maps easily. So we should continue to work
 out the best tagging system and use that - even if it's not currently
 supported by any rendering styles.

This is an excellent point.

From a cartography perspective, excluding unneeded detail is essential
for producing a usable map. I've long felt the official OSM rendering is
far, far too detailed - it's basically grey goop at a distance and a
riot up close.

People really shouldn't be lobbying for more features to be added to
official tilesets, instead what is needed is many more additional, more
specialised tilesets, and for desktop/web/mobile apps to let people
easily make use of them.

//Mike

-- 
⊨ Michael Gratton, Percept Wrangler.
⚙ http://mjog.vee.net/



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Re: [talk-au] OpenStreetMap in Government

2013-05-10 Thread Paul Norman
 From: David [mailto:dban...@internode.on.net]
 Sent: Thursday, May 09, 2013 10:48 PM
 Subject: Re: [talk-au] OpenStreetMap in Government
 
 Further, so much OSM data ends up in a psql database, one
 column per tag. Believe it or not, psql does not like having column
 names start with numerals. It can be worked around but I suspect that's
 one reason mapnik (or more correctly, its slippery map) won't show
 4wd_only.

Column names beginning with numerals are fine in PostgreSQL. You have to
quote them, but that's not a big issue. You have to quote the natural
column too as natural is a reserved word in SQL.

The technical issues preventing styling based on 4wd_only on tile.osm.org,
the default osm.org layer, are threefold:

1. To add a column to the database on yevaud (the tile.osm.org rendering
server) would require a database reload. The hstore feature can now be used
to avoid this, but hstore is relatively new and not enabled on yevaud. It
could be enabled, but again this would require a database reload. I think
the last database reload was in 2011.

2. The mapnik stylesheet (osm.xml) used for tile.osm.org is horrendously
hard to edit and does not have a maintainer. I guess this isn't really a
technical issue, but it's tied up with the next one

3. The tile.osm.org stylesheet has been ported to carto, an easier language
to write stylesheets in. Unfortunately, it is slower and deploying this new
stylesheet is waiting on a hardware upgrade. This is also related to the
database reload. 

Two non-technical issues are

1. There is no cartographer maintaining the osm.org stylesheet. Deciding
what to include and what not to include takes a design skill that I know I
don't have.

2. Unlike other layers, the tile.osm.org layer has a strong influence on how
mappers tag. For this reason care needs to be used when adding new tags,
because what's rendered is much more likely to be tagged.

For what it's worth, if I was maintaining the tile.osm.org style and a patch
came in adding some kind of indication of 4wd status to it, I don't know if
I'd accept it. I've traveled the 4wd roads in Australia so I know how their
terrain matters, and I've also studied it at work, the problem is the style
already shows too much information. Thankfully, it's not up to me as I don't
have cartographic design skills. Of course if no one proposes a change to
the stylesheet with a patch, we'll never have that discussion and there's no
chance of adding it then.


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Re: [talk-au] OpenStreetMap in Government

2013-05-10 Thread Ian Sergeant
On 10 May 2013 17:01, Steve Bennett stevag...@gmail.com wrote:


 3) There are decades of practice in cartography to learn from. We
 might as well go with existing practice in current 4WD maps. The
 standard distinctions seem to be something like 4WD/2WD/dirt/sealed,
 and sometimes one more category indicating something like possibly
 impassable. So no need for the 10 point roughness/tracktype scale -
 it's too hard.


But your overall point is surely that as long as we have the basics, if
some group of people want the extra information and are willing to gather
it, and some other group of people want to use the information and are
willing to render/route it, then all is good.

We're here to use our data in new an innovative ways, right?

On this topic, we seem to have some people who are keen to build apps with
4wd data, and other people who would like to add the 4wd tags to specific
data.  Both sides seem to be looking to the Wizard of OSM for the answer,
but they appear to be wearing ruby slippers.

Ian.
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