Re: [talk-au] dirt roads

2012-10-23 Thread Nathan Van Der Meulen
Unfortunately i can't find my original comments on tracks and 4wd_only, but 
I'll concede that highway=track doesn't necessarily mean 4wd_only=yes.

I don't like 4wd_only=no because many tracks that may be used by 2wds can 
rapidly deteriorate to a 4wd track and, as previously mentioned, weather can 
change everything.  I know forestry roads that are definitely classed as 
touristy roads but, add a bit of rain and keep the grader away for a while 
and that road is pretty rough in a 4wd.  No tag leaves the onus on the user to 
use his/her own discretion.  There's also the problem of what type of 2wd.  
Yeah i know I'm picking at this but I've heard the comments from the 
knuckleheads.  A Falcon is a 2wd - as is a Kia Carnival and a Jag and a 
Ferrari.  Does 2wd_only mean all those?  No tag = up to the driver to work it 
out.


Nathan





 From: talk-au-requ...@openstreetmap.org talk-au-requ...@openstreetmap.org
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Today's Topics:

   1. dirt roads - a summary (David Bannon)
   2. Re: dirt roads - a summary (Ian Sergeant)
   3. Re: dirt roads - a summary (Mark Pulley)
   4. Re: dirt roads - a summary (John Henderson)


--

Message: 1
Date: Tue, 23 Oct 2012 10:39:53 +1030
From: David Bannon dban...@internode.on.net
To: talk-au@openstreetmap.org
Subject: [talk-au] dirt roads - a summary
Message-ID:
    38c3ab4655c281ac64279a1e5bb9cf80e7083...@webmail.internode.on.net
Content-Type: text/plain; charset=utf-8

Hi Folks, a summary of discussion on dirt roads before I hack at the
discussion tab of Australian_Road_Tagging. Seems to me two issues not
completely clear -

1. Nathan sees all cases of highway=track implying 4x4 required. I
don't really agree, the dynamic range in this space is just too tight,
we need to use 'track' on roads that are both 4x4 and not 4x4. Thats
what 4x4_only tag is for. Whats the feeling here folks ?

2. Ian likes the idea that tracks or unsealed roads can be marked
4x4_only=no if someone has done a survey and decided that's
appropriate. Particularly in places where there may be some assumption
that the tracks are often pretty tough. I am not completely convinced,
see two problems, it does, to some extent, change the idea that
default is 'no'. Secondly, importantly, tracks change over time and
people opinions on what is and is not a 4x4 track vary. Saying you
will be OK in a conventional car is a lot stronger statement than
you might/will need a 4x4. Comments please ?

At present, mainstream rendering? emphasizes the purpose of a road.
Trouble is that (possibly uninformed) people look at the maps and
assume a thick prominent line means a well maintained, probably sealed
road.

I think there is some agreement that a means of showing the 4x4-ness
of a track on the mainstream (ie mapnik) maps is desirable and
possibly a safety issue. The best way to show this might be to append
4x4 to the name of tracks where 4x4_only is set to yes or
recommended (Matt).? 

Similarly, showing sealed/unsealed may also be a good idea.

I note that if you look at the slippery map on osm.org, click Map Key
at a zoomed in level there is a key for unsealed road, a thick grey
dashed line. I spent an hour looking for an example of that on
Australian and overseas maps but found none. But thats what we want
??? 

If we are to have even the slightest chance of getting changes in this
space, it will be because we all agree and play the safety card !

I will clarify lanes=1 where two cars cannot pass at 'normal' speed
(Paul, John). And no lanes= tag for default situation.

I will also suggest that survey is probably required for tracks, sat
or aerial sources risk missing things like water crossing or gates
that completely change the nature of the whole road. A safety issue
again.

David


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Message: 2
Date: Tue, 23 Oct 2012 13:08:18 +1100
From: Ian Sergeant inas66+...@gmail.com
To: David Bannon dban...@internode.on.net
Cc: talk-au@openstreetmap.org
Subject: Re: [talk-au] dirt roads - a summary
Message-ID:
    calda4yltfkux7kx6o3ywnsso69vtss+9zzrno7yfuh_tcac...@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1

On 23 October 2012

Re: [talk-au] dirt roads

2012-10-23 Thread Ian Sergeant

On 23/10/12 22:31, Nathan Van Der Meulen wrote:
I don't like 4wd_only=no because many tracks that may be used by 2wds 
can rapidly deteriorate to a 4wd track and, as previously mentioned, 
weather can change everything.  I know forestry roads that are 
definitely classed as touristy roads but, add a bit of rain and keep 
the grader away for a while and that road is pretty rough in a 4wd.  
No tag leaves the onus on the user to use his/her own discretion.


I don't believe this is currently the case.  No tag implies the default, 
not use at your own risk, depending on weather conditions, etc.


Ian.

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[talk-au] surface tag

2012-10-23 Thread Andrew Laughton
Hi People

Sorry if this has already been stated, I have not mapped since the
licence change and I am only reading some emails.

I my humble opinion, surface=unpaved should not be used.
surface=paved should only be used is the surface is literally paved
with brick, bluestone, cobblestone, whatever.
surface=asphalt should be used for asphalt or bitumen.
surface=gravel should be used for gravel roads.
surface=dirt should be used if there is no surface covering, the track
has been literally made out of whatever the ground is made out of.
Think fire breaks.
surface=sand where there is no surface covering, but the ground is
sand or very sandy.
surface=concrete for concrete bike or walking tracks.
surface=wood for wooden walkways, jetty's and so forth.

I even have a faint memory of using surface=grass, where the track was
very overgrown, but too many tags might not be so good for rendering
machines.

I do not think I ever used it, but I think there is a smoothness tag
which might be worth some research if you are worried about a track
falling between 4x4_only=[recommended; yes;no].
The 4x4_only tag might be better left to legal definitions set by rangers.

As well as a speed_limit tag, thought should be given to a speed_avg tag.
Some roads might have a legal speed limit of 100 kmh, but you can be
lucky to get out of second gear because of the rough road surface, or
even heavily used roads that are normally very crowded, and the
average speed is actually not very fast.
The speed_avg tag would be handy for routing engines.

My 2 cents worth.

Andrew.




On 21 October 2012 12:03,  dban...@internode.on.net wrote:

 Hi Folks, recent I have been going over parts of OSM mapped some time ago,
 following up on the infamous redaction. One thing that jumps out at me is
 the inconsistent tagging of dirt roads. Even, I must say, ones I have done
 myself but over a several year time span.

 So I started to write some notes for myself and thought that maybe I should
 add them to http://wiki.openstreetmap.org/wiki/Australian_Roads_Tagging  I
 don't think this is inconsistent with whats there now, just more detailed.
 However, I do suggest that we need consider what the rendering engines do
 with our data and I know that is a bit naughty. But, in this case, I'd
 suggest to do otherwise is negligent as it can have quite serious safety
 issues.

 So, would people like to comment on what I say here ? If we can reach
 consensus, I'll graft some of it onto the OSM wiki.

 Unmade roads

 These are typically forestry and remote tracks, while they may have been cut
 initially by a bulldozer they are not regularly maintained and, importantly,
 are not domed and don't have good run off gutters on the side. Such roads
 might or might not be single lane, 4x4 only, might be dry weather etc. Be
 careful about deciding on such restrictions, some people are often surprised
 at how well a carefully driven conventional vehicle can use these tracks.
 Highway=track will typically render to a dashed line.
 highway=track
 surface=unpaved
 lanes=[1; 2]
 4x4_only=[recommended; yes]
 source=survey

 Made but unsealed roads.

 Many rural roads fit here. There is no asphalt but the roads are 'made' and
 regularly maintained by, eg, the local council. These roads often have a
 gravel base, always have dome shape, the middle is somewhat higher than the
 sides and there is some sort of gutter at the edge. The gutter will usually
 have run offs to drain water away from the road. Such roads are almost
 never 4x4_only nor dry weather only.
 highway=[unclassified; tertiary, secondary]
 surface=unpaved
 lanes=[1; 2]
 source=survey

 Use of the highway tag on dirt roads.

 While the selection of tags should not be defined by how current rendering
 engines display, we cannot ignore the final outcome. In Australia, a lot of
 dirt roads are quite important and sometimes its necessary to compromise a
 little to achieve a useful result. So the correct highway tag may be
 determined by a combination of the purpose of the road and its condition.
 Tracks are often rendered as dashed lines and most people would understand
 that means some care may well be needed. Unclassified would indicate a
 purely local function and is typically rendered as two thin black lines with
 white between Tertiary  roads usually are rendered with two black lines and
 a coloured fill and many people (incorrectly) interpret that as meaning a
 sealed road, so maybe mappers should ensure they apply that tag only to dirt
 roads that are reasonably well maintained. Secondary roads are shown as
 wider and a different colour than tertiary and are definitely presented as
 viable routes for people passing through the area. Some care needs be
 exercised if a dirt road is to be classified as 'secondary'.


 Discussion

 Sometimes its hard to balance the description of a road against its purpose.
 A good example might be the Plenty Highway. This road is probably a track
 from a road condition 

Re: [talk-au] Dirt Roads

2012-10-23 Thread Ross Scanlon

Mapnik 2 will allow tagging of 4wd_only=recommended and 4wd_only=yes.

An example of 4wd_only=yes here:

http://map.4x4falcon.com/?zoom=14lat=-20.73023lon=116.99701layers=B0F

The 4wd_only=recommended is similar but shows 4WD Recommended.

It is a trivial matter with Mapnik 2 to use text substitution for this 
and what you actually show on the map can easily be changed.


Cheers
Ross


On 22/10/12 06:53, Nathan Van Der Meulen wrote:

Hi David

Tho I can't say much about it yet, the outcome is for public use (within
a product). Once we have some details nutted out we hope to have some
more detail. We can't define 4wd_only=yes from 4wd_only=recommended due
to software restrictions and other difficulties. But we are certainly
trying to get 4wd_only=yes defined, and surface=unpaved is already done.
Like most things in OSM, the end result really relies on proper
placement and tagging - not only roads but also places etc.

Matt, the Peninsular Dev Rd is certainly another example. In fact there
are heaps of Dev Rds that are state roads or major roads, but in quite
poor condition. Go to the extreme - National Route 1 across the gulf.

Nathan



*From:* talk-au-requ...@openstreetmap.org
talk-au-requ...@openstreetmap.org
*To:* talk-au@openstreetmap.org
*Sent:* Sunday, 21 October 2012 10:00 PM
*Subject:* Talk-au Digest, Vol 64, Issue 18

Send Talk-au mailing list submissions to
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Today's Topics:

1. Re: Lanes tag (John Henderson)
2. Re: dirt roads (John Henderson)
3. Re: dirt roads (Matt White)
4. Re: dirt roads (Ian Sergeant)
5. Re: dirt roads (Nathan Van Der Meulen) (dban...@internode.on.net
mailto:dban...@internode.on.net)
6. Re: dirt roads (dban...@internode.on.net
mailto:dban...@internode.on.net)
7. Re: dirt roads (Ian Sergeant)


--

Message: 1
Date: Sun, 21 Oct 2012 14:03:49 +1100
From: John Henderson snow...@gmx.com mailto:snow...@gmx.com
To: talk-au@openstreetmap.org mailto:talk-au@openstreetmap.org
Subject: Re: [talk-au] Lanes tag
Message-ID: 50836615.5000...@gmx.com mailto:50836615.5000...@gmx.com
Content-Type: text/plain; charset=UTF-8; format=flowed

On 21/10/12 13:40, Paul HAYDON wrote:

  It occurs to me there's at least one other case which warrants
  tagging the lanes - a two-way road (or section thereof) having only
  a single lane. I.E. when there are LESS than one in each
  direction, making passing difficult or unsafe at normal speeds.
 
  Any thoughts?

I reckon that's quite legitimate if two cars can't pass. Exceptional
conditions should be flagged as appropriate.

But I wouldn't think a road simply too narrow for two caravans to pass
should automatically get the lanes=1 treatment. Caravaners are
especially aware of the need to drive to the prevailing conditions, as
are truck drivers.

The width or est_width tags from
http://wiki.openstreetmap.org/wiki/Map_Features are more appropriate in
most such circumstances.

John



--

Message: 2
Date: Sun, 21 Oct 2012 14:12:04 +1100
From: John Henderson snow...@gmx.com mailto:snow...@gmx.com
To: dban...@internode.on.net mailto:dban...@internode.on.net
Cc: talk-au@openstreetmap.org mailto:talk-au@openstreetmap.org
Subject: Re: [talk-au] dirt roads
Message-ID: 50836804.1010...@gmx.com mailto:50836804.1010...@gmx.com
Content-Type: text/plain; charset=UTF-8; format=flowed

On 21/10/12 13:28, dban...@internode.on.net
mailto:dban...@internode.on.net wrote:
  OK, I'm interested in what you say about lanes= John (and the rest
  too!)
 
  I use lanes=1 to indicate that a road is generally only wide enough
  for one car, if one approaches traveling in the other direction, both
  need to slow a little and pull of to the side. Similarly for
  overtaking. Thats actually a pretty important factoid, lots of
  caravaners for example would studiously avoid such a road.

That's especially important if pulling off the road is also impossible.
I can think of cases where roads cut into mountainsides have short
sections too narrow for two cars, and have a drop on one side and a rock
face on the other.

Don't forget the established use of tagging a way as
access:caravan=unsuitable

John




--

Message: 3
Date: Sun, 21 Oct 2012 14:34:06 +1100
From: Matt White mattwh...@iinet.com.au mailto:mattwh...@iinet.com.au
To: talk-au@openstreetmap.org 

Re: [talk-au] Dirt Roads

2012-10-23 Thread David Bannon
Ross, thats pretty cool.

My plan at the moment is to document this discussion on the OSM wiki
and then start lobbying the people who maintain the OSM website's
slippery map to do just what you have done there. I guess we all
expected it to be do-able but nice to have it confirmed.

Would you mind if I used that link as a reference ?  I must admit I
don't know just how good the relationship between fosm and osm is ?

David 

- Original Message -
From: i...@4x4falcon.com
To:
Cc:
Sent:Mon, 22 Oct 2012 10:20:56 +1000
Subject:Re: [talk-au] Dirt Roads

 Mapnik 2 will allow tagging of 4wd_only=recommended and 4wd_only=yes.

 An example of 4wd_only=yes here:

 http://map.4x4falcon.com/?zoom=14lat=-20.73023lon=116.99701layers=B0F

 The 4wd_only=recommended is similar but shows 4WD Recommended.

 It is a trivial matter with Mapnik 2 to use text substitution for
this 
 and what you actually show on the map can easily be changed.

 Cheers
 Ross

 On 22/10/12 06:53, Nathan Van Der Meulen wrote:
  Hi David
 
  Tho I can't say much about it yet, the outcome is for public use
(within
  a product). Once we have some details nutted out we hope to have
some
  more detail We can't define 4wd_only=yes from 4wd_only=recommended
due
  to software restrictions and other difficulties. But we are
certainly
  trying to get 4wd_only=yes defined, and surface=unpaved is already
done.
  Like most things in OSM, the end result really relies on proper
  placement and tagging - not only roads but also places etc.
 
  Matt, the Peninsular Dev Rd is certainly another example. In fact
there
  are heaps of Dev Rds that are state roads or major roads, but in
quite
  poor condition. Go to the extreme - National Route 1 across the
gulf.
 
  Nathan
 
 
 

  *From:* talk-au-requ...@openstreetmap.org
  
  *To:* talk-au@openstreetmap.org
  *Sent:* Sunday, 21 October 2012 10:00 PM
  *Subject:* Talk-au Digest, Vol 64, Issue 18
 
  Send Talk-au mailing list submissions to
  talk-au@openstreetmap.org 
 
  To subscribe or unsubscribe via the World Wide Web, visit
  http://lists.openstreetmaporg/listinfo/talk-au
  or, via email, send a message with subject or body 'help' to
  talk-au-requ...@openstreetmap.org 
 
  You can reach the person managing the list at
  talk-au-owner@openstreetmaporg 
 
  When replying, please edit your Subject line so it is more specific
  than Re: Contents of Talk-au digest...
 
 
  Today's Topics:
 
  1. Re: Lanes tag (John Henderson)
  2. Re: dirt roads (John Henderson)
  3. Re: dirt roads (Matt White)
  4. Re: dirt roads (Ian Sergeant)
  5. Re: dirt roads (Nathan Van Der Meulen) (dban...@internode.on.net
  )
  6. Re: dirt roads (dban...@internode.on.net
  )
  7. Re: dirt roads (Ian Sergeant)
 
 
 
--
 
  Message: 1
  Date: Sun, 21 Oct 2012 14:03:49 +1100
  From: John Henderson 
  To: talk-au@openstreetmap.org 
  Subject: Re: [talk-au] Lanes tag
  Message-ID: 
  Content-Type: text/plain; charset=UTF-8; format=flowed
 
  On 21/10/12 13:40, Paul HAYDON wrote:
 
   It occurs to me there's at least one other case which warrants
   tagging the lanes - a two-way road (or section thereof) having
only
   a single lane. I.E. when there are LESS than one in each
   direction, making passing difficult or unsafe at normal speeds.
  
   Any thoughts?
 
  I reckon that's quite legitimate if two cars can't pass.
Exceptional
  conditions should be flagged as appropriate.
 
  But I wouldn't think a road simply too narrow for two caravans to
pass
  should automatically get the lanes=1 treatment. Caravaners are
  especially aware of the need to drive to the prevailing conditions,
as
  are truck drivers.
 
  The width or est_width tags from
  http://wiki.openstreetmap.org/wiki/Map_Features are more
appropriate in
  most such circumstances.
 
  John
 
 
 
  --
 
  Message: 2
  Date: Sun, 21 Oct 2012 14:12:04 +1100
  From: John Henderson 
  To: dban...@internode.on.net 
  Cc: talk-au@openstreetmap.org 
  Subject: Re: [talk-au] dirt roads
  Message-ID: 
  Content-Type: text/plain; charset=UTF-8; format=flowed
 
  On 21/10/12 13:28, dban...@internode.on.net
   wrote:
   OK, I'm interested in what you say about lanes= John (and the
rest
   too!)
  
   I use lanes=1 to indicate that a road is generally only wide
enough
   for one car, if one approaches traveling in the other direction,
both
   need to slow a little and pull of to the side. Similarly for
   overtaking. Thats actually a pretty important factoid, lots of
   caravaners for example would studiously avoid such a road.
 
  That's especially important if pulling off the road is also
impossible.
  I can think of cases where roads cut into mountainsides have short
  sections too narrow for two cars, and have a drop on one side and a
rock
  face on the other.
 
  Don't forget the established use of tagging a way as
  

Re: [talk-au] surface tag

2012-10-23 Thread Ian Sergeant
On 24 October 2012 08:05, Andrew Laughton laughton.and...@gmail.com wrote:
 I my humble opinion, surface=unpaved should not be used.
 surface=paved should only be used is the surface is literally paved
 with brick, bluestone, cobblestone, whatever.

I think, regardless of the validity of your argument, that this horse
has well and truly bolted.

 I even have a faint memory of using surface=grass, where the track was
 very overgrown, but too many tags might not be so good for rendering
 machines.

I really like the two level tags.  Like natural=water, water=bay.  Or
surface=unpaved, unpaved=gravel

This allows a basic parser to make some sense of what is there, and
those who care about the detail can drill down.  This is the
documented method with some tags, but not with others, such is the
nature of the beast.

Ian.

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Re: [talk-au] Dirt Roads

2012-10-23 Thread Ian Sergeant
On 24 October 2012 09:48, David Bannon dban...@internode.on.net wrote:

 My plan at the moment is to document this discussion on the OSM wiki and
 then start lobbying the people who maintain the OSM website's slippery map
 to do just what you have done there. I guess we all expected it to be
 do-able but nice to have it confirmed.

Hi David,

Have you seen this ticket?

https://trac.openstreetmap.org/ticket/1447

 Would you mind if I used that link as a reference ?

The trac call already has examples, do you think they are suitable?

I don't see the purpose in linking to styles from third parties unless
we have explicit permission from their owner/creator to use them in
OSM.

Ian.

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Re: [talk-au] surface tag

2012-10-23 Thread Ben Kelley
Hi.

Common usage is that surface=paved is any kind of sealed road including
asphalt.

  - Ben Kelley
 On Oct 24, 2012 9:23 AM, Andrew Laughton laughton.and...@gmail.com
wrote:

 Hi People

 Sorry if this has already been stated, I have not mapped since the
 licence change and I am only reading some emails.

 I my humble opinion, surface=unpaved should not be used.
 surface=paved should only be used is the surface is literally paved
 with brick, bluestone, cobblestone, whatever.
 surface=asphalt should be used for asphalt or bitumen.
 surface=gravel should be used for gravel roads.
 surface=dirt should be used if there is no surface covering, the track
 has been literally made out of whatever the ground is made out of.
 Think fire breaks.
 surface=sand where there is no surface covering, but the ground is
 sand or very sandy.
 surface=concrete for concrete bike or walking tracks.
 surface=wood for wooden walkways, jetty's and so forth.

 I even have a faint memory of using surface=grass, where the track was
 very overgrown, but too many tags might not be so good for rendering
 machines.

 I do not think I ever used it, but I think there is a smoothness tag
 which might be worth some research if you are worried about a track
 falling between 4x4_only=[recommended; yes;no].
 The 4x4_only tag might be better left to legal definitions set by rangers.

 As well as a speed_limit tag, thought should be given to a speed_avg tag.
 Some roads might have a legal speed limit of 100 kmh, but you can be
 lucky to get out of second gear because of the rough road surface, or
 even heavily used roads that are normally very crowded, and the
 average speed is actually not very fast.
 The speed_avg tag would be handy for routing engines.

 My 2 cents worth.

 Andrew.




 On 21 October 2012 12:03,  dban...@internode.on.net wrote:
 
  Hi Folks, recent I have been going over parts of OSM mapped some time
 ago,
  following up on the infamous redaction. One thing that jumps out at me is
  the inconsistent tagging of dirt roads. Even, I must say, ones I have
 done
  myself but over a several year time span.
 
  So I started to write some notes for myself and thought that maybe I
 should
  add them to http://wiki.openstreetmap.org/wiki/Australian_Roads_Tagging I
  don't think this is inconsistent with whats there now, just more
 detailed.
  However, I do suggest that we need consider what the rendering engines do
  with our data and I know that is a bit naughty. But, in this case, I'd
  suggest to do otherwise is negligent as it can have quite serious safety
  issues.
 
  So, would people like to comment on what I say here ? If we can reach
  consensus, I'll graft some of it onto the OSM wiki.
 
  Unmade roads
 
  These are typically forestry and remote tracks, while they may have been
 cut
  initially by a bulldozer they are not regularly maintained and,
 importantly,
  are not domed and don't have good run off gutters on the side. Such roads
  might or might not be single lane, 4x4 only, might be dry weather etc. Be
  careful about deciding on such restrictions, some people are often
 surprised
  at how well a carefully driven conventional vehicle can use these tracks.
  Highway=track will typically render to a dashed line.
  highway=track
  surface=unpaved
  lanes=[1; 2]
  4x4_only=[recommended; yes]
  source=survey
 
  Made but unsealed roads.
 
  Many rural roads fit here. There is no asphalt but the roads are 'made'
 and
  regularly maintained by, eg, the local council. These roads often have a
  gravel base, always have dome shape, the middle is somewhat higher than
 the
  sides and there is some sort of gutter at the edge. The gutter will
 usually
  have run offs to drain water away from the road. Such roads are almost
  never 4x4_only nor dry weather only.
  highway=[unclassified; tertiary, secondary]
  surface=unpaved
  lanes=[1; 2]
  source=survey
 
  Use of the highway tag on dirt roads.
 
  While the selection of tags should not be defined by how current
 rendering
  engines display, we cannot ignore the final outcome. In Australia, a lot
 of
  dirt roads are quite important and sometimes its necessary to compromise
 a
  little to achieve a useful result. So the correct highway tag may be
  determined by a combination of the purpose of the road and its condition.
  Tracks are often rendered as dashed lines and most people would
 understand
  that means some care may well be needed. Unclassified would indicate a
  purely local function and is typically rendered as two thin black lines
 with
  white between Tertiary  roads usually are rendered with two black lines
 and
  a coloured fill and many people (incorrectly) interpret that as meaning a
  sealed road, so maybe mappers should ensure they apply that tag only to
 dirt
  roads that are reasonably well maintained. Secondary roads are shown as
  wider and a different colour than tertiary and are definitely presented
 as
  viable routes for people passing through the 

Re: [talk-au] Dirt Roads

2012-10-23 Thread Ross Scanlon

I'm happy for you to use that link as a reference.

I'll refrain from commenting on the remainder of that para.

When the 4wd_only tagging was introduced it was attempted to get this 
included in the mapping but there was reluctance to do so.


Like most proposals it did not have a rendering proposal included and is 
something that should be mandatory for all proposals.  Including mapnik 
xml at the very least.


Cheers
Ross


On 24/10/12 08:48, David Bannon wrote:

Ross, thats pretty cool.

My plan at the moment is to document this discussion on the OSM wiki and
then start lobbying the people who maintain the OSM website's slippery
map to do just what you have done there. I guess we all expected it to
be do-able but nice to have it confirmed.

Would you mind if I used that link as a reference ?  I must admit I
don't know just how good the relationship between fosm and osm is ?

David



- Original Message -
From:
i...@4x4falcon.com

To:
talk-au@openstreetmap.org
Cc:

Sent:
Mon, 22 Oct 2012 10:20:56 +1000
Subject:
Re: [talk-au] Dirt Roads


Mapnik 2 will allow tagging of 4wd_only=recommended and 4wd_only=yes.

An example of 4wd_only=yes here:

http://map.4x4falcon.com/?zoom=14lat=-20.73023lon=116.99701layers=B0F

The 4wd_only=recommended is similar but shows 4WD Recommended.

It is a trivial matter with Mapnik 2 to use text substitution for this
and what you actually show on the map can easily be changed.

Cheers
Ross


On 22/10/12 06:53, Nathan Van Der Meulen wrote:
  Hi David
 
  Tho I can't say much about it yet, the outcome is for public use
(within
  a product). Once we have some details nutted out we hope to have some
  more detail. We can't define 4wd_only=yes from
4wd_only=recommended due
  to software restrictions and other difficulties. But we are certainly
  trying to get 4wd_only=yes defined, and surface=unpaved is
already done.
  Like most things in OSM, the end result really relies on proper
  placement and tagging - not only roads but also places etc.
 
  Matt, the Peninsular Dev Rd is certainly another example. In fact
there
  are heaps of Dev Rds that are state roads or major roads, but in
quite
  poor condition. Go to the extreme - National Route 1 across the gulf.
 
  Nathan
 
 
 

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  Today's Topics:
 
  1. Re: Lanes tag (John Henderson)
  2. Re: dirt roads (John Henderson)
  3. Re: dirt roads (Matt White)
  4. Re: dirt roads (Ian Sergeant)
  5. Re: dirt roads (Nathan Van Der Meulen) (dban...@internode.on.net
  mailto:dban...@internode.on.net)
  6. Re: dirt roads (dban...@internode.on.net
  mailto:dban...@internode.on.net)
  7. Re: dirt roads (Ian Sergeant)
 
 
 
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  Message: 1
  Date: Sun, 21 Oct 2012 14:03:49 +1100
  From: John Henderson snow...@gmx.com mailto:snow...@gmx.com
  To: talk-au@openstreetmap.org mailto:talk-au@openstreetmap.org
  Subject: Re: [talk-au] Lanes tag
  Message-ID: 50836615.5000...@gmx.com
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  On 21/10/12 13:40, Paul HAYDON wrote:
 
   It occurs to me there's at least one other case which warrants
   tagging the lanes - a two-way road (or section thereof) having only
   a single lane. I.E. when there are LESS than one in each
   direction, making passing difficult or unsafe at normal speeds.
  
   Any thoughts?
 
  I reckon that's quite legitimate if two cars can't pass. Exceptional
  conditions should be flagged as appropriate.
 
  But I wouldn't think a road simply too narrow for two caravans to
pass
  should automatically get the lanes=1 treatment. Caravaners are
  especially aware of the need to drive to the