Re: [talk-au] 4WD only tags

2012-11-04 Thread Li Xia
Hi David, although my opinion is that most render's try to simplify the the 
stylesheet so the map for ease of comprehension and would not make use of these 
additional attributes, I see your point and agree that it's useful data to 
have. Since my company focuses on 4WD maps and navigation, we will certainly 
take full advantage of this.

BTW, do you have the link to the proposal page? Will go and cast a vote.

Li.

On 04/11/2012, at 2:41 PM, David Bannon wrote:

  
 Li, I beg to differ. While I agree that grading of a 4x4 track is subjective, 
 so is much of the other data in the OSM database. Must be that way.
 
 The real issue is how important the data is. As I have mentioned, I am 
 concerned that maps are being rendered that ignore this data. Routing engines 
 are potentially sending people down roads that they, and their vehicles are 
 ill suited to. Bad things will definitely happen.
 
 The routing people are saying but these tags don't even show on the OSM 
 maps, why should we worry ?. 
 
 And as to subjective, while there will always be borderline cases, I don't 
 think it would be too hard to divide tracks up into -
 
 * 4x4 recommended - you will might be OK in a conventional car or (better 
 still) an SUV but you have been warned.
 
 * 4x4 required - you really need a stock 4x4, a real one with (eg) low ratio.
 
 * 4x4 extreme - this is for the death or glory boys, they need experience and 
 modified vehicles. This is a recent addition !
 
 I am pretty sure that if you and I spent a couple of weeks having some 
 driving fun, we'd agree on the vast majority of the tracks we graded.
 
 David
 
 
 
 
 - Original Message -
 From:
 Li Xia lisxia1...@gmail.com
 
 To:
 David Bannon dban...@internode.on.net
 Cc:
 OSM Australian Talk List talk-au@openstreetmap.org
 Sent:
 Sun, 4 Nov 2012 13:08:22 +1100
 Subject:
 4WD only tags
 
 
 Hi David, just my 2 cents on 4WD_only tags.
 
 By adding a 4x4 recommended tag will add to the complexity because it's kind 
 of subjective as to which roads/tracks are traversable in a 2WD vehicle, 
 therefor adding another option for this key will further complicate the 
 issue. 
 
 Li.

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[talk-au] NSW Alphanumeric routes

2012-11-04 Thread Mark Pulley
The NSW RTA has a web site up on the new alphanumeric routes, including maps of 
the new routes.

www.rta.nsw.gov.au/roadprojects/projects/alpha_numeric/index.html

I was wondering when we should update the route numbers to the new routes.

Some have already been done, e.g. A41 (Bathurst to Albury via Mid Western and 
Olympic Highways) - the road signs for this went up several years ago (although 
some have since been coverplated).

I am thinking that some would definitely be OK to do now (e.g. convert NR 32 
(Great Western/Mitchell/Barrier Highways) to A32, as the number is similar)

I'm not so sure about updating some other routes (e.g. Oxley Highway NR 34 
becomes B56, Snowy Mountains Highway NR 18 becomes B72) - as the numbers are 
different, are these best left until the route number signs change on the 
ground?

(Also, are we allowed to use the RTA web site as a source for an ODBL database 
like OSM?)

Mark P.

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Re: [talk-au] traffic lights on dual carriageway intersections

2012-11-04 Thread Ian Steer

 By choosing to place traffic light not on the intersection node, you
are failing to represent that this is an intersection of two roads,
controlled by traffic signals.

I don't see how it is failing to represent that - the intersection is there
(the ways intersect at nodes), and there are traffic signals *before* the
intersection (not smack-bang in the middle of the intersection)


 Instead you are choosing to represent There is a stop line here and
traffic signal and further on there is an intersection.

- but isn't that EXACTLY what we have - a stop line with a traffic signal,
with an intersection further on ?

- and if we were REALLY keen, the same *could* be done for single carriage
way intersections (but I'm not suggesting that that is a sensible option)

Ian


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Re: [talk-au] traffic lights on dual carriageway intersections

2012-11-04 Thread Ian Sergeant
On 4 November 2012 20:58, Ian Steer ianst...@iinet.net.au wrote:

 By choosing to place traffic light not on the intersection node, you
 are failing to represent that this is an intersection of two roads,
 controlled by traffic signals.

 I don't see how it is failing to represent that - the intersection is there
 (the ways intersect at nodes), and there are traffic signals *before* the
 intersection (not smack-bang in the middle of the intersection)

Because our current schema indicates that an intesection is controlled
by signals by placing the traffic signals on the intersecting node.
Traffic lights do occur before intersections or the immediate vicinity
without controlling traffic movements through that intersection.

It is a meaningful respresentation.  In many North American cities the
signals hang right in the centre of the intersection.  Are you saying
these should be mapped differently just because the lights are located
in a different location?  As far as the road user is concerned, they
are the same.  They don't care where the traffic signals are - they
care there are lights at the corner of 6th and Vine.

 - and if we were REALLY keen, the same *could* be done for single carriage
 way intersections (but I'm not suggesting that that is a sensible option)

Exactly.  This is the clincher.  Why on earth would you develop a
schema that is only relevant to dual carriageways?

When there is a schema that can respresent stop lines, signal
locations, and intersection control across all junctions then I'm in.
Until then, trying to vary the current schema in a way that is both
ambigious, and only works for dual carriageways just doesn't fly, IMO.

Ian.

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Re: [talk-au] NSW Alphanumeric routes

2012-11-04 Thread Ian Sergeant
Hi,

The timetable for this rollout is from January to December 2013.  So,
if we do this now we could be making changes over a year before the
signs change.

I say, lets just wait for the implementation.  I have faith in OSM to
make the changes within a day of the coverplates being removed, and
then the copyright issues don't come into play either, and navigation
always corresponds to the signs.

I also noticed on the RTA site a while back, they were saying that
they were trying to work with map and data providers to provide timely
and accurate updates.  It certainly may be worthwhile sending them an
email to see if we can take advantage of that, especially if we can
get a timetable for the coverplate removal.

Ian.

On 4 November 2012 20:48, Mark Pulley mrpul...@lizzy.com.au wrote:
 The NSW RTA has a web site up on the new alphanumeric routes, including maps
 of the new routes.

 www.rta.nsw.gov.au/roadprojects/projects/alpha_numeric/index.html


 I was wondering when we should update the route numbers to the new routes.


 Some have already been done, e.g. A41 (Bathurst to Albury via Mid Western
 and Olympic Highways) - the road signs for this went up several years ago
 (although some have since been coverplated).

 I am thinking that some would definitely be OK to do now (e.g. convert NR 32
 (Great Western/Mitchell/Barrier Highways) to A32, as the number is similar)

 I'm not so sure about updating some other routes (e.g. Oxley Highway NR 34
 becomes B56, Snowy Mountains Highway NR 18 becomes B72) - as the numbers are
 different, are these best left until the route number signs change on the
 ground?

 (Also, are we allowed to use the RTA web site as a source for an ODBL
 database like OSM?)


 Mark P.



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Re: [talk-au] 4WD only tags

2012-11-04 Thread David Bannon

Thanks Li, I have not put that proposal up yet, waiting on a response
to a related matter. Soon.

And when I do, I'll not be wanting just your vote, it will be your
input I will really need !

Maybe I should put a draft up on my personal page while we wait ?

David
 

- Original Message -
From: Li Xia 
To:David Bannon 
Cc:OSM Australian Talk List 
Sent:Sun, 4 Nov 2012 20:37:52 +1100
Subject:Re: 4WD only tags

 Hi David, although my opinion is that most render's try to simplify
the the stylesheet so the map for ease of comprehension and would not
make use of these additional attributes, I see your point and agree
that it's useful data to have. Since my company focuses on 4WD maps
and navigation, we will certainly take full advantage of this.
 BTW, do you have the link to the proposal page? Will go and cast a
vote. 
 Li.  
  On 04/11/2012, at 2:41 PM, David Bannon wrote: 
  
 Li, I beg to differ. While I agree that grading of a 4x4 track is
subjective, so is much of the other data in the OSM database. Must be
that way.

The real issue is how important the data is. As I have mentioned, I am
concerned that maps are being rendered that ignore this data. Routing
engines are potentially sending people down roads that they, and their
vehicles are ill suited to. Bad things will definitely happen.

The routing people are saying but these tags don't even show on the
OSM maps, why should we worry ?. 

And as to subjective, while there will always be borderline cases, I
don't think it would be too hard to divide tracks up into -

* 4x4 recommended - you will might be OK in a conventional car or
(better still) an SUV but you have been warned.

* 4x4 required - you really need a stock 4x4, a real one with (eg) low
ratio.

* 4x4 extreme - this is for the death or glory boys, they need
experience and modified vehicles. This is a recent addition !

I am pretty sure that if you and I spent a couple of weeks having some
driving fun, we'd agree on the vast majority of the tracks we graded.

David

- Original Message -
 From: Li Xia  
To:David Bannon 
Cc:OSM Australian Talk List 
Sent:Sun, 4 Nov 2012 13:08:22 +1100
Subject:4WD only tags

 Hi David, just my 2 cents on 4WD_only tags.

 By adding a 4x4 recommended tag will add to the complexity because
it's kind of subjective as to which roads/tracks are traversable in a
2WD vehicle, therefor adding another option for this key will further
complicate the issue. 

 Li. 
  

Links:
--
[1] mailto:lisxia1...@gmail.com
[2] mailto:dban...@internode.on.net
[3] mailto:talk-au@openstreetmap.org

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Re: [talk-au] traffic lights on dual carriageway intersections

2012-11-04 Thread Nick Hocking
Ian Steer wrote

I think this is good because no matter
which way you go through the intersection, you only pass one set of lights
(rather than 2 if they were placed on the actual intersecting nodes).


Couldn't a smart traffic light counter detect dual carrageways and just
add a single signal, same as the exit counter does for roundabouts?

Nick
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Re: [talk-au] Preparing to map.

2012-11-04 Thread Nick Hocking
Sorry folks, I was having too much fun in Port Macquarie and only got to
map for a short while.

I did some roads near the racecourse although most of these were never
named in OSM before.  On my returm trip I will make a more determined
effort to re-map the rest of Port Macquarie.


I have made a decent start to mapping the Gold Coast and I'll do some more
today hopefully.


Cheers
Nick
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Re: [talk-au] 4WD only tags

2012-11-04 Thread Li Xia
No probs david, and you'll be getting plenty of input from me, watch out ;-)

A draft would be great. Let me know when it's ready to review.

Li.

On 05/11/2012, at 9:10 AM, David Bannon wrote:

 
 Thanks Li, I have not put that proposal up yet, waiting on a response to a 
 related matter. Soon.
 
 And when I do, I'll not be wanting just your vote, it will be your input I 
 will really need !
 
 Maybe I should put a draft up on my personal page while we wait ?
 
 David
  
 
 
 
 - Original Message -
 From:
 Li Xia lisxia1...@gmail.com
 
 To:
 David Bannon dban...@internode.on.net
 Cc:
 OSM Australian Talk List talk-au@openstreetmap.org
 Sent:
 Sun, 4 Nov 2012 20:37:52 +1100
 Subject:
 Re: 4WD only tags
 
 
 Hi David, although my opinion is that most render's try to simplify the the 
 stylesheet so the map for ease of comprehension and would not make use of 
 these additional attributes, I see your point and agree that it's useful data 
 to have. Since my company focuses on 4WD maps and navigation, we will 
 certainly take full advantage of this.
 
 BTW, do you have the link to the proposal page? Will go and cast a vote.
 
 Li.
 
 On 04/11/2012, at 2:41 PM, David Bannon wrote:
 
  
 Li, I beg to differ. While I agree that grading of a 4x4 track is subjective, 
 so is much of the other data in the OSM database. Must be that way.
 
 The real issue is how important the data is. As I have mentioned, I am 
 concerned that maps are being rendered that ignore this data. Routing engines 
 are potentially sending people down roads that they, and their vehicles are 
 ill suited to. Bad things will definitely happen.
 
 The routing people are saying but these tags don't even show on the OSM 
 maps, why should we worry ?. 
 
 And as to subjective, while there will always be borderline cases, I don't 
 think it would be too hard to divide tracks up into -
 
 * 4x4 recommended - you will might be OK in a conventional car or (better 
 still) an SUV but you have been warned.
 
 * 4x4 required - you really need a stock 4x4, a real one with (eg) low ratio.
 
 * 4x4 extreme - this is for the death or glory boys, they need experience and 
 modified vehicles. This is a recent addition !
 
 I am pretty sure that if you and I spent a couple of weeks having some 
 driving fun, we'd agree on the vast majority of the tracks we graded.
 
 David
 
 
 
 
 - Original Message -
 From:
 Li Xia lisxia1...@gmail.com
 
 To:
 David Bannon dban...@internode.on.net
 Cc:
 OSM Australian Talk List talk-au@openstreetmap.org
 Sent:
 Sun, 4 Nov 2012 13:08:22 +1100
 Subject:
 4WD only tags
 
 
 Hi David, just my 2 cents on 4WD_only tags.
 
 By adding a 4x4 recommended tag will add to the complexity because it's kind 
 of subjective as to which roads/tracks are traversable in a 2WD vehicle, 
 therefor adding another option for this key will further complicate the 
 issue. 
 
 Li.
 

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