[Talk-us] Mapping of State/county/national parks

2009-06-25 Thread Tyler
Hello all,
I've a question about mapping the different types of park. I've been using
boundary=national_park for national parks and forests and then tagging
national parks as landuse=nature_reserve and forests as landuse=forest I've
also been tagging ownership=national

However with state, county and city parks of similar wilderness use or of
more generic recreational use I'm at a loss. leisure=park is not appropriate
given the wiki definition open, green area for recreation, usually
municipal. This is fine for city green spaces, but doesn't work for
state/county recreation areas which may be either wilderness or managed
trails, motorcycle tracks, boat launches etc.

nature_reserve isn't appropriate as they're usually not preserving nature

I have been tagging state and county parks which are not open green spaces
as parks for the time being, but if anyone has any other suggestions I would
love to hear them.

-Tyler
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Re: [Talk-us] Mapping of State/county/national parks

2009-06-25 Thread Adam Schreiber
On Thu, Jun 25, 2009 at 2:59 PM, Tylertyler.ritc...@gmail.com wrote:
 Hello all,
 I've a question about mapping the different types of park. I've been using
 boundary=national_park for national parks and forests and then tagging
 national parks as landuse=nature_reserve and forests as landuse=forest I've
 also been tagging ownership=national
 However with state, county and city parks of similar wilderness use or of
 more generic recreational use I'm at a loss. leisure=park is not appropriate
 given the wiki definition open, green area for recreation, usually
 municipal. This is fine for city green spaces, but doesn't work for
 state/county recreation areas which may be either wilderness or managed
 trails, motorcycle tracks, boat launches etc.
 nature_reserve isn't appropriate as they're usually not preserving nature
 I have been tagging state and county parks which are not open green spaces
 as parks for the time being, but if anyone has any other suggestions I would
 love to hear them.

Why is landuse=forest not appropriate for parks/forests with the same
uses but with a lower administrative classification?  landuse=forest
is for managed land with trees on it regardless of who manages it.

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Re: [Talk-us] Mapping of State/county/national parks

2009-06-25 Thread Tyler

 Why is landuse=forest not appropriate for parks/forests with the same uses
 but with a lower administrative classification?  landuse=forest is for
 managed land with trees on it regardless of who manages it.


Because they often aren't forests. (I said similar use)

Sometimes they're scrubland, beach, plains, dunes, rocky craginess,
volcanos, river deltas... The list goes on and on. I take landuse=forest to
mean a managed forest meaning they're harvesting trees, moss or whatever,
such as many state natural resource department's forest land or the National
Forest lands (excluding wilderness areas) in the United states. And often
parks at lower administrative classifications are set aside for recreation,
not natural preservation or for logging, farming, grazing or harvesting any
natural resources.

As the case is in coastal states, there are coastal state parks consisting
solely of beaches, and in the southwest of the United States there are state
parks consisting solely of desert.

Additionally landuse=forest doesn't accurately portray all of the Bureau of
Land Managements lands--which account for 1/8th of the area of the US, of
which landuse=forest is only appropriate for ~20%. It also would be
entirely inappropriate for the United States National Grasslands, which are
like the National Forests in almost every aspect, except that they are
grasslands (and tagging them as such doesn't distinguish them from
surrounding non-public use/recreation grasslands).

I'm all for using existing tagging schemes, but the vast majority of land in
the United States and Canada classified as parks aren't of the form
leisure=park. Personally, I would classify what is leisure=park
(manicured greenery with duckponds and funnel cake vendors) as urban
parks.

-Tyler
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Re: [Talk-us] US Interstate ways alignment

2009-06-25 Thread Paul Johnson
On Wed, 2009-06-17 at 15:23 -0500, Stephen Johnson wrote:
 Some of the TIGER ways and nodes for Interstates in my area are way out of 
 alignment. They are all over the map if you'll forgive the pun. I have 
 several GPS tracks for most of the Interstate lanes. 
 
 My question is what should I align the ways to? The center, inner or outside 
 lanes? Is there some consensus for it which I have't found yet?

Ways should always be aligned as close to the center of the way as
practical (and line-wraps should be set to as close to 72 characters as
practical).



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Re: [Talk-us] Mapping of State/county/national parks

2009-06-25 Thread Tyler
Just tagging the underlying landtypes and uses is fine (aside from most of
them not being natural) but doesn't at all account for the difference
between scrubland/seashore/whatever where you will be shot to death if
you trespass (military installations) and that which you're free to roam
around on and is designated a park.


 Then use the boundary key.  If you way up each of the unique sections, then
 create a multipolygon relation out of all of the boundary ways and
 additional multipolygons for each of the various landuses or ground covers.


Boundaries are a good solution, and are easy for the national lands set
aside for recreation boundary=national_park covers them nicely (and
renderers could easily decide to render them as filled green areas--standard
practice).

Through a quick discussion on #osm I'm going with boundary=national_park
(for all parks that aren't urban parks), admin_level=whatever the operator
level is, operator=whoever the operator is and ownership=whoever the
owner is parsing that out to re-tag it consistently later should be
relatively trivial.

Thanks for the discussion Adam,

-Tyler
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Re: [Talk-us] Mapping of State/county/national parks

2009-06-25 Thread Andrew Ayre
Does boundary=national_park have nothing to do with US National Parks? 
I.e. it's just a park at the national level?

Andy

Tyler wrote:
 Just tagging the underlying landtypes and uses is fine (aside from most 
 of them not being natural) but doesn't at all account for the difference 
 between scrubland/seashore/whatever where you will be shot to death if 
 you trespass (military installations) and that which you're free to roam 
 around on and is designated a park.
  
 
 Then use the boundary key.  If you way up each of the unique
 sections, then create a multipolygon relation out of all of the
 boundary ways and additional multipolygons for each of the various
 landuses or ground covers.
 
 
 Boundaries are a good solution, and are easy for the national lands set 
 aside for recreation boundary=national_park covers them nicely (and 
 renderers could easily decide to render them as filled green 
 areas--standard practice).
 
 Through a quick discussion on #osm I'm going with boundary=national_park 
 (for all parks that aren't urban parks), admin_level=whatever the 
 operator level is, operator=whoever the operator is and 
 ownership=whoever the owner is parsing that out to re-tag it 
 consistently later should be relatively trivial.
 
 Thanks for the discussion Adam,
 
 -Tyler
 
 
 
 
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-- 
Andy
PGP Key ID: 0xDC1B5864

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Re: [Talk-us] Mapping of State/county/national parks

2009-06-25 Thread Tyler

 Does boundary=national_park have nothing to do with US National Parks? I.e.
 it's just a park at the national level?


It would make more sense to me to just be a park at the national level, that
makes it useful to all of the various national level parks which aren't
National Park Service parks in the US, in addition to national parks in
Canada, Mexico, China, Russia, Lesotho, etc.

boundary=national_park
ownership=national
operator=United States National Park Service

or
operator=United States National Forest Service
operator=United States Bureau of Land Management
etc.

-Tyler
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Re: [Talk-us] Mapping of State/county/national parks

2009-06-25 Thread Apollinaris Schoell

 boundary=national_park
 ownership=national
 operator=United States National Park Service

 or
 operator=United States National Forest Service
 operator=United States Bureau of Land Management
 etc.


makes sense to use just one boundary tag. easier to implement in the
renderer and good enough for nearly all maps. also most users don't care if
it's a national, state, county park 
special applications/users can use  the operator tag.




 -Tyler

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