[Talk-gb-westmidlands] Funding for aerial photography

2009-04-03 Thread Peter Miller


I have created a wiki page for appeals for money for aerial  
photography and added a basic FAQ to it.


Is still very raw but I think it is valuable to have one page to  
support all the funding appeals wherever they are for in the world and  
provide answers to the basic questions.


Feel free to improve the page and add details as I have rushed it out  
and it certainly needs loads more work.

http://wiki.openstreetmap.org/wiki/Aerial_photography_funding_appeals

I have created a link to it from the Birmingham page but links are  
need to Gaza, it needs categories and needs to be woven into other  
parts of the wiki. I will come back to it after the weekend some help  
from others would be great in the mean time.



Regards,



Peter





Brian
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[Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Richard Mann
Folks,

Having some time on my hands at the moment, I'm trying to get my head round
some of the inconsistencies/duplications/gaps in the usage of the highway
key. Having looked at the recent widescale adoption of highway=path in
Germany it is clearly fulfilling a need. I'm coming to the view that this is
a need that we (England and Wales) didn't know existed, because we're used
to red dotted lines for country footpaths, and have fallen into using the
same tag for rural and urban footpaths, even though they are generally
physically quite different. We've therefore lost some of the physical
information you get on OS maps, where old hands know to prefer footpaths
that follow tracks etc.

In Germany, highway=path is being used for paths outside built-up areas
that aren't wide enough to be highway=track, but aren't established enough
to be classified as footway, cycleway or bridleway. They are probably also
reacting to footway (fussweg) being an established term for an urban
footpath, and not liguistically appropriate to a rural footpath. Footway is
also a defined term in English law, but it's mostly used by highways
professionals, and covers urban and rural footpaths and pavements.

highway=path is also sometimes being used in Germany with
bicycle=designated or foot=designated, but this isn't as common.

Given a choice between the English system (of using footway in both urban
and rural contexts) or the German system (of distinguishing), I think I'm
coming to the conclusion that the German system gives a clearer and more
accurate coding of the geography, and gives renderers a better basis for
making maps. I also think that developing a consensus on how path should
be used is sensible, to avoid it being used for every type of path, which is
currently a danger.

There is obviously an issue that we in England and Wales have been merrily
tagging rural footpaths as footways for a while. If we move to a situation
where path is preferred for most of these, then that's quite a lot of
retagging. But having them as highway=footway isn't so terribly wrong in the
meantime, so I'd be happy for a slow transition, if the eventual outcome was
a clearer and more internationally-adoptable/understandable system.

*** I would like feedback/discussion on this particular point - whether
urban made-up and rural unmade footpaths should be tagged distinctively ***

To summarise  clarify, I'm getting towards:
highway=path for unmade/part-made pedestrian ways, typically in
rural/woodland settings, or urban shortcuts (implies foot=yes, rest=no)
highway=footway for well-made pedestrian ways, typically in urban settings,
though sometimes in popular rural/woodland settings (implies foot=yes,
rest=no)
highway=bridleway for (typically unmade) ways clearly identifiable as for
use by horses as well as pedestrians, typically in a rural/woodland setting
(implies foot=yes, horse=yes, rest=no)
highway=cycleway for ways that have been engineered for normal cycles, in
both rural and urban settings, but which are less than 2m wide (implies
foot=yes, bicycle=yes, rest=no; horse=yes to be added where appropriate)
highway=track/unclassified/etc for ways that are at least 2m wide
AND
designation=footpath/bridleway/restricted_byway/byway/permissive_footpath/permissive_bridleway
to record right of way in England  Wales (probably with a default
assumption that highway=path implies designation=footpath and
highway=bridleway implies designation=bridleway unless tagged otherwise)

Richard (West Oxford)
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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread David Earl
On 03/04/2009 12:42, Richard Mann wrote:
 *** I would like feedback/discussion on this particular point - whether 
 urban made-up and rural unmade footpaths should be tagged distinctively ***

Given we already have a separate tag for surface, I don't see the 
distinction.

In highway engineering terms in the UK a footway is always alongside a 
road, and we don't tend to mark those separately anyway. So our use of 
this rather specialised word footway doesn't correspond to the only 
other use of it.

I just don't see the distinction between a muddy metre wide path that 
happens to run between houses from one that doesn't. And if it is 
surfaced, we have a means to say so already.

 To summarise  clarify, I'm getting towards:
 highway=path for unmade/part-made pedestrian ways, typically in 
 rural/woodland settings, or urban shortcuts (implies foot=yes, rest=no)
 highway=footway for well-made pedestrian ways, typically in urban 
 settings, though sometimes in popular rural/woodland settings (implies 
 foot=yes, rest=no)
 highway=bridleway for (typically unmade) ways clearly identifiable as 
 for use by horses as well as pedestrians, typically in a rural/woodland 
 setting (implies foot=yes, horse=yes, rest=no)
 highway=cycleway for ways that have been engineered for normal cycles, 
 in both rural and urban settings, but which are less than 2m wide 
 (implies foot=yes, bicycle=yes, rest=no; horse=yes to be added where 
 appropriate)
 highway=track/unclassified/etc for ways that are at least 2m wide
 AND
 designation=footpath/bridleway/restricted_byway/byway/permissive_footpath/permissive_bridleway
  
 to record right of way in England  Wales (probably with a default 
 assumption that highway=path implies designation=footpath and 
 highway=bridleway implies designation=bridleway unless tagged otherwise)

Well, you know my view on this. A cycleway is a cycleway if it is signed 
as a cycleway, not because it appears to be constructed to a standard 
that happens to be suitable for carrying bikes. Likewise bridleway, 
which in the UK permits cyclists to use it (by default).

And where did this arbitrary 2m come from? That would mean some signed 
cycleways in Cambridge wouldn't be marked as such because they are wider 
than 2m. Perhaps you are trying somehow to distinguish between a 
specially constructed cycleway and a road which has been converted for 
cycle use. But in my mind that's just a wider cycleway.

It will come as no surprise to you that I completely disagree with your 
approach to this whole subject.

David


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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Gregory Williams
 -Original Message-
 From: talk-gb-boun...@openstreetmap.org [mailto:talk-gb-
 boun...@openstreetmap.org] On Behalf Of David Earl
 Sent: 3 April 2009 13:02
 To: Richard Mann
 Cc: talk-gb@openstreetmap.org
 Subject: Re: [Talk-GB] Possibly using highway=path for country
 footpaths

 Well, you know my view on this. A cycleway is a cycleway if it is
 signed
 as a cycleway, not because it appears to be constructed to a standard
 that happens to be suitable for carrying bikes. Likewise bridleway,
 which in the UK permits cyclists to use it (by default).
 
 And where did this arbitrary 2m come from? That would mean some signed
 cycleways in Cambridge wouldn't be marked as such because they are
 wider
 than 2m. Perhaps you are trying somehow to distinguish between a
 specially constructed cycleway and a road which has been converted for
 cycle use. But in my mind that's just a wider cycleway.
 
 It will come as no surprise to you that I completely disagree with
your
 approach to this whole subject.

Indeed. Current guidance (though admittedly not always heeded) in the UK
is for a minimum of 2.5m wide for a cycleway. So only applying
highway=cycleway to ways less than 2m wide would mean that we can't add
any new cycleways that follow the guidance.

Gregory

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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Steve Hill
On Fri, 3 Apr 2009, David Earl wrote:

 In highway engineering terms in the UK a footway is always alongside a
 road, and we don't tend to mark those separately anyway.

This is a slightly separate issue, but not marking them is a bit of a 
problem in some cases because we end up with things like foot bridges 
which are unconnected at both ends because there is no separate footway 
marked along the side of the road.  I'm not really going to comment on 
what the best practice is for this case at the moment, just pointing out 
that it can be a problem.

 I just don't see the distinction between a muddy metre wide path that
 happens to run between houses from one that doesn't. And if it is
 surfaced, we have a means to say so already.

I've got to agree with this.  I missed the discussion when the 
highway=path tag was agreed, but I have never really seen the need for it. 
If it is something I can walk along then it's a footway - I don't much 
care whether it is in an urban area or on the top of a cliff in the middle 
of nowhere, none of that changes what I can do on the way (i.e. walk).

 Well, you know my view on this. A cycleway is a cycleway if it is signed
 as a cycleway, not because it appears to be constructed to a standard
 that happens to be suitable for carrying bikes. Likewise bridleway,
 which in the UK permits cyclists to use it (by default).

Also, there's a legal distinction between cycleways and footways to think 
about - it is illegal to cycle on a footway, and similarly if you were 
walking on a designated cycleway I suspect the courts might not look 
at you favourably if you were hit by a bike (especially if there's a 
perfectly good footway following a similar route).  So marking up a way as 
a cycleway just because it _looks_ suitable for bikes is not a sensible 
move.

In some cases a track is both a footway and a cycleway (often with a line 
down the middle to separate the cyclists and pedestrians).  I'm not sure 
of the best way to tag this - do we tag it as a footway with cyclists 
allowed, a cycleway with pedestrians allowed, mark up 2 independent ways 
next to eachother, or something completely different?  (it is a good 
argument for not using the single highway tag to describe the legal 
properties of a way, such as footway or cycleway, where it may 
actually be both).

 And where did this arbitrary 2m come from? That would mean some signed
 cycleways in Cambridge wouldn't be marked as such because they are wider
 than 2m. Perhaps you are trying somehow to distinguish between a
 specially constructed cycleway and a road which has been converted for
 cycle use. But in my mind that's just a wider cycleway.

And indeed, people can already use the width tag to signify how wide the 
cycleway is - what it was historically used for is not important for most 
renderings of the map.  There may be merrit in marking up the historical 
use through other tags, e.g. something like highway=cycleway, 
historically:railway=rail or similar for a disused railway line that is 
now a designated cycleway, but that is another discussion - I don't 
believe what an object used to be should have any real bearing on the 
mainstream tags.

Unless someone can explain to me a really good reason for using path 
instead of footway, I really don't much feel like having to resurvey all 
the footways around here...

  - Steve
xmpp:st...@nexusuk.org   sip:st...@nexusuk.org   http://www.nexusuk.org/

  Servatis a periculum, servatis a maleficum - Whisper, Evanescence


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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Richard Mann
I'd prefer comments on the specific point (path vs footway for rural
footpaths).

I wasn't trying to make a precise proposal re the
cycleway/track/unclassified distinction. I'd probably say that if the extra
width was on something that excluded motor-vehs then it remains a
cycleway, but if it allowed motor-vehs it was unclassified.

Richard

On Fri, Apr 3, 2009 at 1:43 PM, Gregory Williams 
gregory.willi...@purplegeodesoftware.co.uk wrote:

  -Original Message-
  From: talk-gb-boun...@openstreetmap.org [mailto:talk-gb-
  boun...@openstreetmap.org] On Behalf Of David Earl
  Sent: 3 April 2009 13:02
  To: Richard Mann
  Cc: talk-gb@openstreetmap.org
  Subject: Re: [Talk-GB] Possibly using highway=path for country
  footpaths
 
  Well, you know my view on this. A cycleway is a cycleway if it is
  signed
  as a cycleway, not because it appears to be constructed to a standard
  that happens to be suitable for carrying bikes. Likewise bridleway,
  which in the UK permits cyclists to use it (by default).
 
  And where did this arbitrary 2m come from? That would mean some signed
  cycleways in Cambridge wouldn't be marked as such because they are
  wider
  than 2m. Perhaps you are trying somehow to distinguish between a
  specially constructed cycleway and a road which has been converted for
  cycle use. But in my mind that's just a wider cycleway.
 
  It will come as no surprise to you that I completely disagree with
 your
  approach to this whole subject.

 Indeed. Current guidance (though admittedly not always heeded) in the UK
 is for a minimum of 2.5m wide for a cycleway. So only applying
 highway=cycleway to ways less than 2m wide would mean that we can't add
 any new cycleways that follow the guidance.

 Gregory

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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Ed Loach
I'm beginning personally to think that
highway=footway/cycleway/bridleway were all a mistake and that
highway=path and designation=public_footpath/etc, along with
suitable access keys (foot, bicycle, etc) would have been a better
starting point - there would certainly be fewer debates where things
are currently less than clear. A wiki page I was looking at last
night even mentions highway=byway which I can't find anywhere else
in the wiki (and it says it implies motorcar=no for restricted
byway, though the one I drove last night only said that at the end I
came out of and not where I entered, so perhaps that should be
motorcar=destination or something, but that's a different
discussion).

However, I don't believe we should differentiate urban
footpaths(etc) from rural ones other than my means of the surface,
width and designation tags, whether you use =path or =footwa/etc.
Indeed you can have designated public footpaths that pass through
urban areas, so really the only likely difference between rural and
urban that I can see are where they are (so are they in a
landuse=residential area, for example) and their physical properties
(such as surface and width). 

Ed



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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Jonathan Bennett
Ed Loach wrote:
 Indeed you can have designated public footpaths that pass through
 urban areas
 snip

Like this one?

http://www.openstreetmap.org/?mlat=51.23497mlon=-0.59355zoom=17layers=B000FTF


-- 
Jonathan (Jonobennett)

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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Steve Hill
On Fri, 3 Apr 2009, Ed Loach wrote:

 I'm beginning personally to think that
 highway=footway/cycleway/bridleway were all a mistake and that
 highway=path and designation=public_footpath/etc, along with
 suitable access keys (foot, bicycle, etc) would have been a better
 starting point

I think even that is a bit too high level.  You don't really need to 
specify whether it is a path, road, etc - all we should really care about 
is what sort of traffic can use it (i.e. motorcar=yes|no|designated, 
etc.)  From this you can easilly work out what *sort* of way it is (i.e. 
if it allows pedestrians and no one else, clearly it is a footway; if it 
allows cars then it is a road, etc).  Any extra attributes are a bonus - 
width, surface, classification (e.g. for roads this might be motorway, 
primary, secondary, etc.).  Similarly, things like whether the road is 
in a residential area should be an extra attribute, not a fundamental 
classification of the way.

However, mistake or not, we have what we have and making fundamental 
changes doesn't seem especially likely (I have in the past made 
suggestions regarding the fundamental data structure and have been met 
with nothing but sarcastic replies and put-downs - I find it quite 
depressing that no one seems interested in even thinking about any 
revolutionary changes instead of just continuing down a potentially 
dead-end route.  See my brain-dump on the wiki: 
http://wiki.openstreetmap.org/wiki/User_talk:Steve_Hill)

  - Steve
xmpp:st...@nexusuk.org   sip:st...@nexusuk.org   http://www.nexusuk.org/

  Servatis a periculum, servatis a maleficum - Whisper, Evanescence


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[Talk-GB] Exhibition for Construction and Engineering Surveying

2009-04-03 Thread Andy Robinson (blackadder-lists)
If anyone is in and around York Racecourse on 22 or 23 April then you might
think to tout OSM around to some of the exhibitors at XCES. It would be
useful to get some contact names for some of these organisations there. I
might have gone myself but I'm not available those two days. 

http://asp.artegis.com/xces/2009

It's a trade thing but just stick OpenStreetMap on the registration form.

Cheers

Andy


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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread David Earl
On 03/04/2009 14:11, Steve Hill wrote:
 However, mistake or not, we have what we have and making fundamental 
 changes doesn't seem especially likely (I have in the past made 
 suggestions regarding the fundamental data structure and have been met 
 with nothing but sarcastic replies and put-downs - I find it quite 
 depressing that no one seems interested in even thinking about any 
 revolutionary changes instead of just continuing down a potentially 
 dead-end route.  See my brain-dump on the wiki: 
 http://wiki.openstreetmap.org/wiki/User_talk:Steve_Hill)

We don't really have a mechanism for making that kind of decision 
collectively. It's easy for someone to influence how new tags are used, 
for example, as those just require someone to start doing it, or to be 
rendered. If it's a good idea people will use it, if not it will die.

But unless it can be upward compatible, it is just much harder to 
achieve with the fundamental infrastructure and requires at least some 
measure of concensus but that's not nearly enough: the will and skill to 
put in the hours to make the change is the thing that will actually make 
something happen. Relations only got introduced (and segments abolished) 
because someone (Frederick mainly) got down to it and actually did it 
rather than just talking about it.

There seems to be a proposal for a radical 
shake-up-and-lets-start-from-scratch every few weeks. There has to be a 
really, really good reason to turn over the apple cart because the cost 
is just so high.

FWIW, I agree largely with the specific points on your wiki page, but I 
don't think it will happen because of the effort involved. What we have 
now is not perfect, but it can and largely does model what you are 
suggesting already, so there is no huge impetus to change it. There is 
also a camp which actively wants a node to be able to have more than one 
type in your terminology: we have (non-accidental) examples of 
place=town and building=town_hall for example, and (worse) place=town 
and amenity=post_box on the same node. I think that's ludicrous myself, 
and I'm sure you do too, but there are those who don't see it that way.

David


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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Steve Hill
On Fri, 3 Apr 2009, David Earl wrote:

 FWIW, I agree largely with the specific points on your wiki page, but I don't 
 think it will happen because of the effort involved.

The wiki page wasn't really supposed to be a this is how it needs to be 
solution - the hope was to get people talking about how stuff can be 
improved without immediately dismissing anything that wasn't on the path 
of least resistance.  I can understand people being indifferent, but to be 
met with sarcastic replies and put-downs instead of intelligent 
conversation was pretty offputting.

Personally, I don't think the current tagging scheme is really 
maintainable in the long run and that eventually there will need to be a 
revolution, rather than evolution, in the way the data is represented, and 
I worry about the future of project if people with new ideas are turned 
away like this.

 There is also a camp which actively 
 wants a node to be able to have more than one type in your terminology: we 
 have (non-accidental) examples of place=town and building=town_hall for 
 example, and (worse) place=town and amenity=post_box on the same node. I 
 think that's ludicrous myself, and I'm sure you do too, but there are those 
 who don't see it that way.

I agree that this sounds pretty crazy (although I'm rather of the opinion 
that using a node instead of an area to identify a town for anything other 
than a temporary measure is wrong).  There are a lot of cases where 
tagging objects as multiple things makes sense though - one example was 
given on the wiki page with roads that become pistes in the winter, but 
there are other such examples.  There may even be merit in having a single 
node tagged as both a posting box and a bus stop if it happens to be a 
pole with both a posting box and a bus stop mounted on it.


  - Steve
xmpp:st...@nexusuk.org   sip:st...@nexusuk.org   http://www.nexusuk.org/

  Servatis a periculum, servatis a maleficum - Whisper, Evanescence


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Re: [Talk-GB] Possibly using highway=path for country footpaths

2009-04-03 Thread Chris Fleming

On 03/04/09 13:43, Gregory Williams wrote:

-Original Message-
From: talk-gb-boun...@openstreetmap.org [mailto:talk-gb-
boun...@openstreetmap.org] On Behalf Of David Earl
Sent: 3 April 2009 13:02
To: Richard Mann
Cc: talk-gb@openstreetmap.org
Subject: Re: [Talk-GB] Possibly using highway=path for country
footpaths

Well, you know my view on this. A cycleway is a cycleway if it is
signed
as a cycleway, not because it appears to be constructed to a standard
that happens to be suitable for carrying bikes. Likewise bridleway,
which in the UK permits cyclists to use it (by default).

And where did this arbitrary 2m come from? That would mean some signed
cycleways in Cambridge wouldn't be marked as such because they are
wider
than 2m. Perhaps you are trying somehow to distinguish between a
specially constructed cycleway and a road which has been converted for
cycle use. But in my mind that's just a wider cycleway.

It will come as no surprise to you that I completely disagree with
 

your
   

approach to this whole subject.
 


Indeed. Current guidance (though admittedly not always heeded) in the UK
is for a minimum of 2.5m wide for a cycleway. So only applying
highway=cycleway to ways less than 2m wide would mean that we can't add
any new cycleways that follow the guidance.
   
Yes for example my route to work goes along a long section of NCR which 
is probably only 40 cm wide. But it's very definitely a cycleway.


Cheers
Chris
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[Talk-GB] OSM Birmingham Solihull limited edition map now on sale

2009-04-03 Thread Andy Robinson (blackadder-lists)
To celebrate the completion of base mapping for the city of Birmingham, UK
we, being the local OSMers here, have had a map printed to show of our
endeavours.

The print run for Edition 1 was limited to just 50 and 10 have already gone
to those who helped make it all happen. The rest we would like to offer for
sale to cover the cost of printing the batch.

The map is basically this one linked below but printed as a 300dpi raster
TIF rather than the PDF, however we haven’t lost any definition, it’s a
great map:
http://ajr.hopto.org/osm/MappaMerciaBrumEd1.pdf (warning 4MB over a slow
connection)

It's printed on A0 matt poster paper to produce a map that is 841mm x
1189mm. They have then been hand folded to make a traditional folded map
much like an Ordnance Survey map but without the card cover. More details
here:

http://blog.mappa-mercia.org/2009/03/birmingham-solihull-map-now-in-print.ht
ml

Each map of the 40 left is numbered starting at 11.

The price will be £8 each plus PP at cost depending upon where it's going.

If you are interested please email me at my mappa-mercia email address
a...@mappa-mercia.org with details of how many you would like and where they
need to go, I'll then respond with the total price inc PP and details of
how to pay. Orders will be processed on a first come first served basis.

Once they are all gone that’s it. If it is successful we will probably do a
further map next year after we complete the Black Country and Coventry.

Cheers

Andy

For more about mappa-mercia see www.mappa-mercia.org




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