Re: [Tagging] Ultimate list of approved keys

2011-01-03 Thread Ralf Kleineisel
On 02.01.2011 22:40, Anthony wrote:
 On Sun, Jan 2, 2011 at 4:30 PM, Ralf Kleineisel r...@kleineisel.de wrote:
 I do not want someone telling me this is not relevant enough and
 having the right to delete my edits.
 
 Then make edits which are relevant enough

By which and whose standards? Yours? Mine?

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Peter Wendorff

Hi.
I'm not very familiar with waterway tagging, but AFAIK these are tagged 
as riverbanks, too.
Your proposal doesn't say anything about how to map sluice gates at 
these bigger rivers as it proposes the usage on nodes only.


As sluice gates assumably will be more on bigger waterways, that seems 
to be an important point to add for me.


regards
Peter

Am 03.01.2011 02:59, schrieb Paul Norman:

I've set up a proposal for sluice_gates, which are typically found on small
waterways in agricultural areas at
http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate


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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Elizabeth Dodd
On Mon, 03 Jan 2011 11:04:27 +0100
Ulf Lamping ulf.lamp...@googlemail.com wrote:

 Am 03.01.2011 02:59, schrieb Paul Norman:
  I've set up a proposal for sluice_gates, which are typically found
  on small waterways in agricultural areas at
  http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate
 
 What's the difference to waterway=weir?
 
 http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir
 
 Regards, ULFL
 

a weir is much bigger, and a sluice gate may be a sub part of a weir
http://billiau.net/zoph/photo.php?photo_id=17790
is Hay Weir on the Murrumbidgee, with the gates raised completely for
free flow

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Re: [Tagging] Ultimate list of approved keys

2011-01-03 Thread Petr Morávek [Xificurk]
Ralf Kleineisel napsal(a):
 On 01/02/2011 05:42 PM, Robert Elsenaar wrote:
 
 This was a expected answer. I frequently try to discover the reason OSM
 mappers accepting this anarchistic rule of NOT having tagging rules at all.
 What are the advantages for this?
 
 I prefer this over being told what I may map and what not.

Ah, usual pseudo-argument - the ultimate list of approved keys (let's
call it that way for now), would not limit you in what you can and
cannot map, would it?

AFAIK nobody has proposed to limit the content of the database only to
the approved keys, use whatever key/value you like; Not being on the
official list should simply mean that you probably won't see it on every
map renderer and in every editor preset.

Most of the software development world uses some kind of categories to
mark the maturity of their work. I hope that OSM will come up with
something similar. Having a list of approved, well-defined tags with
good usage examples, would make life sooo much easier for both data
consumers and data editors.

Current approval process is broken, combine this with the fact that main
documentation tool is wiki, which anyone can improve to suit his/her
needs in an undergoing argument, and what you get is simply put - chaos.

The theory about good tags evolving by themselves in the wild is nice,
maybe it was valid once, but current list of features is so long that I
really doubt that this process is working... An average newbie now just
takes a look at his/her editor preset and uses whatever's there, if it's
not there, take a look at the wiki or ask someone - I have done this and
I've seen a bunch of questions starting with something like How should
I tag XYZ? I've looked into the presets of JOSM/Merkaartor/... and could
not find a good match. So the decision about what is a good tag is
shifting from the crowd to a smaller group of people anyway, you may not
like it, you may disagree with it, but that's pretty much all you can do ;-)

Petr

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread John Smith
On 3 January 2011 20:04, Ulf Lamping ulf.lamp...@googlemail.com wrote:
 What's the difference to waterway=weir?

A lot of weirs I've seen don't have any kind of gates, they just
semi-dam a river to provide a water supply for nearby towns, the water
freely flows over the top of the weir.

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Elizabeth Dodd
On Mon, 3 Jan 2011 20:37:10 +1000
John Smith deltafoxtrot...@gmail.com wrote:

 On 3 January 2011 20:04, Ulf Lamping ulf.lamp...@googlemail.com
 wrote:
  What's the difference to waterway=weir?
 
 A lot of weirs I've seen don't have any kind of gates, they just
 semi-dam a river to provide a water supply for nearby towns, the water
 freely flows over the top of the weir.
 

like this 
http://museumvictoria.museum/collections/items/766657/negative-weir-bridge-across-the-murray-river-mildura-victoria-circa-1925

to check the list from their archives would provide a good idea of the
range of structures involved
http://museumvictoria.museum/collections/tags/weirs?t=Imagesize=50

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread John Smith
On 3 January 2011 21:06, Elizabeth Dodd ed...@billiau.net wrote:
 like this
 http://museumvictoria.museum/collections/items/766657/negative-weir-bridge-across-the-murray-river-mildura-victoria-circa-1925

I doubt I've seen such a large weir in person, I was thinking more
along the lines of this:

http://static.panoramio.com/photos/original/13825102.jpg

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Re: [Tagging] designated bike lane

2011-01-03 Thread robert


Google's measurement tool?
Waar kan ik die vinden en hoe werkt deze?

-Robert-

Citeren j...@jfeldredge.com:

Two feet wide is about what I had estimated by looking at the   
photograph, which is why I commented that the bicycle might fit into  
 the bike lane, but part of the rider would have to extend over the   
line into the automobile lane.  Your wheels would be more-or-less   
atop the lane divider stripe.


---Original Email---
Subject :Re: [Tagging] designated bike lane
From  :mailto:o...@inbox.org
Date  :Sun Jan 02 22:41:09 America/Chicago 2011


On Sun, Jan 2, 2011 at 10:52 PM, Paul Johnson ba...@ursamundi.org wrote:

Not having a sense of depth, I'd guess in the narrow spot it's about 4
feet wide, which is, believe it or not, the federal minimum width for
bike lanes (though I wish Ray would hurry up and adopt Oregon's 6 foot
lanes and make them mandatory to receive highway funding...)


Google's measurement tool gives more like 2 feet.
(http://maps.google.com/maps?ll=28.078571,-82.56522spn=0.000622,0.000912t=hz=20)

On Sun, Jan 2, 2011 at 10:49 PM, Paul Johnson ba...@ursamundi.org wrote:

I would call the highway department every day until they fix what they
screwed up.


1-850-617-2000

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--
John F. Eldredge -- j...@jfeldredge.com
Reserve your right to think, for even to think wrongly
is better than not to think at all. -- Hypatia of Alexandria
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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread M∡rtin Koppenhoefer
2011/1/3 Ulf Lamping ulf.lamp...@googlemail.com:
 Am 03.01.2011 02:59, schrieb Paul Norman:

 I've set up a proposal for sluice_gates, which are typically found on
 small
 waterways in agricultural areas at
 http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate

 What's the difference to waterway=weir?

 http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir


IMHO the difference is that a weir is used to control the water level
(and sometimes used to produce energy) while a sluice gate is used for
ships to navigate in rivers/canals with different levels (it is part
of steps for ships).

cheers,
Martin

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread John Smith
On 3 January 2011 21:55, M∡rtin Koppenhoefer dieterdre...@gmail.com wrote:
 IMHO the difference is that a weir is used to control the water level
 (and sometimes used to produce energy) while a sluice gate is used for
 ships to navigate in rivers/canals with different levels (it is part
 of steps for ships).

Depends on the type of gates as to the use, doesn't it?

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Re: [Tagging] designated bike lane

2011-01-03 Thread Paul Johnson
On 01/02/2011 10:41 PM, Anthony wrote:
 On Sun, Jan 2, 2011 at 10:52 PM, Paul Johnson 
 baloo-PVOPTusIyP/sroww+9z...@public.gmane.org wrote:
 Not having a sense of depth, I'd guess in the narrow spot it's about 4
 feet wide, which is, believe it or not, the federal minimum width for
 bike lanes (though I wish Ray would hurry up and adopt Oregon's 6 foot
 lanes and make them mandatory to receive highway funding...)
 
 Google's measurement tool gives more like 2 feet.
 (http://maps.google.com/maps?ll=28.078571,-82.56522spn=0.000622,0.000912t=hz=20)

Yeah, that doesn't meet standards.

 On Sun, Jan 2, 2011 at 10:49 PM, Paul Johnson 
 baloo-PVOPTusIyP/sroww+9z...@public.gmane.org wrote:
 I would call the highway department every day until they fix what they
 screwed up.
 
 1-850-617-2000

I'm not Floridian, so they don't care about me.



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Re: [Tagging] designated bike lane

2011-01-03 Thread Dave F.

On 03/01/2011 03:50, Paul Johnson wrote:

On 01/01/2011 07:54 AM, Dave F. wrote:


Is the adjacent path shared? if so, note that that would be the safer
passage.

Most states prohibit bicycles from sidewalks, or limit their speed to a
walking speed on sidewalks, making them useless for bicyclists.


Really? Is that US thing? Do they have signs? What about joggers  runners?



   That,
and nobody expects vehicles to be driving on the sidewalk to start with,
so it's not a safer option for the bicycle operator, other traffic, or
pedestrians to have bicycles there.


I clearly stated *if*.

Dave F.


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Re: [Tagging] designated bike lane

2011-01-03 Thread Dave F.

On 03/01/2011 03:53, Paul Johnson wrote:

On 01/01/2011 01:28 PM, Nathan Edgars II wrote:

On Sat, Jan 1, 2011 at 2:17 PM, Robert 
Elsenaarrobert-Sr3mCESyW84k+I/owrr...@public.gmane.org  wrote:

hazard:bicycle is the other way round. If there is a key/value e.g.
hazard=narrow then you can easily use cycleway:hazard=narrow to tag the
fact that the hazard tag is specificly warns for a narrow cycle-lane.

highway=*
cycleway:right=lane
cycleway:width=0.5
cycleway:hazard=narrow

But the hazard won't always be in a cycleway. For instance there may
be streetcar tracks in the road - fine for motorists, but cyclists
have to watch out.

Should we start tagging potholes while we're at it?


http://www.fillthathole.org.uk/

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Re: [Tagging] designated bike lane

2011-01-03 Thread Nathan Edgars II
On Mon, Jan 3, 2011 at 9:11 AM, Dave F. dave...@madasafish.com wrote:
 On 03/01/2011 03:50, Paul Johnson wrote:

 On 01/01/2011 07:54 AM, Dave F. wrote:

 Is the adjacent path shared? if so, note that that would be the safer
 passage.

 Most states prohibit bicycles from sidewalks, or limit their speed to a
 walking speed on sidewalks, making them useless for bicyclists.

 Really? Is that US thing? Do they have signs? What about joggers  runners?

In Florida, bikes are allowed on sidewalks by default unless the city
bans them (Orlando does, for example, with no signs posted). Speed is
not limited, but pedestrians have right-of-way.

   That,
 and nobody expects vehicles to be driving on the sidewalk to start with,
 so it's not a safer option for the bicycle operator, other traffic, or
 pedestrians to have bicycles there.

 I clearly stated *if*.

Even if the sidewalk were officially designated as a shared path, that
would not make it any safer.

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Dave F.

On 03/01/2011 10:04, Ulf Lamping wrote:

Am 03.01.2011 02:59, schrieb Paul Norman:
I've set up a proposal for sluice_gates, which are typically found on 
small

waterways in agricultural areas at
http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate


What's the difference to waterway=weir?

http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir


A weir is an immovable barrier to retain water level:
http://i.telegraph.co.uk/telegraph/multimedia/archive/01789/Andy-Brown-bath_1789275i.jpg

Towards the top of that picture behind the larger tree is a sluice gate:

http://s0.geograph.org.uk/photos/17/89/178908_0f6d11ea.jpg

Which is a gate that can be raised to allow flood waters to pass through 
quickly, or in some instances to deliberately flood land for 
agricultural use:


http://www.nrm.gov.au/projects/vic/gbro/images/2006-08a.jpg

Cheers
Dave F.


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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Dave F.

On 03/01/2011 11:55, M∡rtin Koppenhoefer wrote:

2011/1/3 Ulf Lampingulf.lamp...@googlemail.com:

Am 03.01.2011 02:59, schrieb Paul Norman:

I've set up a proposal for sluice_gates, which are typically found on
small
waterways in agricultural areas at
http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate

What's the difference to waterway=weir?

http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir

...while a sluice gate is used for
ships to navigate in rivers/canals with different levels (it is part
of steps for ships).


Those are called locks:

http://en.wikipedia.org/wiki/Lock_%28water_transport%29



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Re: [Tagging] designated bike lane

2011-01-03 Thread Anthony
On Mon, Jan 3, 2011 at 6:39 AM,  rob...@elsenaar.info wrote:

 Google's measurement tool?

http://maps.google.com/maps?ll=28.078571,-82.56522spn=0.000622,0.000912t=hz=20

Bottom left hand corner.  Click the ruler.  Click the start point.
Click the end point.

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Dave F.

On 03/01/2011 15:10, Elizabeth Dodd wrote:

On Mon, 03 Jan 2011 15:00:08 +
Dave F.dave...@madasafish.com  wrote:

A weir is an immovable barrier to retain water level:
http://i.telegraph.co.uk/telegraph/multimedia/archive/01789/Andy-Brown-bath_1789275i.jpg

Even that isn't completely correct
Weirs on the Murray and Murrumbidgee can be removed during flood times

Mildura Weir out of the water
http://www.facebook.com/photo.php?fbid=10150349468545206set=a.10150349467770206.581577.329408210205


Balranald Weir out of the water
http://billiau.net/zoph/photo.php?photo_id=17253


Although it's hard to decipher what's happening in the second photo' , I 
would describe the movable parts as sluice gates not weirs.


Cheers
Dave F.


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Re: [Tagging] designated bike lane

2011-01-03 Thread Dave F.

On 03/01/2011 14:36, Nathan Edgars II wrote:

Even if the sidewalk were officially designated as a shared path, that
would not make it any safer.


This could degenerate into a long winded argument, so to save us a lot 
of typing I'll say from the outset that we should agree to disagree.


Cheers
Dave F.

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Re: [Tagging] designated bike lane

2011-01-03 Thread Anthony
On Mon, Jan 3, 2011 at 9:36 AM, Nathan Edgars II nerou...@gmail.com wrote:
 Even if the sidewalk were officially designated as a shared path, that
 would not make it any safer.

Yeah, the only way the sidewalk is a safer path would be if you slow
down and yield to cars at every crosswalk.  While you might arguably
have the right of way in some such situations, many people driving
cars just don't expect relatively fast moving vehicles to appear in
crosswalks.

The safest path in this particular section of road for a bicyclist who
doesn't want to basically stop and look both ways at every
intersection, would be in the right-hand motor vehicle lane.  At least
until after the bridge, and probably all the way through the Veterans
Expressway interchange.  Of course, except for at the bridge itself,
where I think anyone would agree that it's reasonably necessary to
avoid the bike lane, riding in the motor vehicle lane is arguably
illegal, due to the mandatory bike lane law.

So in one sense, yeah, the sidewalk probably is the safest path.  It's
the path I'll be taking my son on the first time he rides that way.
But its safety assumes you're going to slow down and yield at every
intersection.

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Re: [Tagging] tagging a point of interest of sorts

2011-01-03 Thread M∡rtin Koppenhoefer
2010/12/16 Steve Bennett stevag...@gmail.com:
 On Thu, Dec 16, 2010 at 12:23 PM, Richard Welty rwe...@averillpark.net 
 wrote:
 it depends on what an attraction is. i'm not averse to using it, but in the
 US at least, an attraction is usually some place you park, maybe buy
 tickets, and go in a building, park, etc for a more extended experience.

 Yeah, but don't go thinking that every cultural stereotype surrounding
 the word attraction has to apply to a tag of the same name.

 Btw, historic=yes is another candidate. Of the existing tags, that
 might be the best actually.


IMHO those could both (the highway-marker and the dog) be tagged as
landmarks. Both of them do IMHO not qualify for artwork and at least
the marker is surely not an attraction (I guess also the dog is not
really a tourist attraction, but this should be judged upon with local
knowledge).

I found this page about landmarks, which seems to see landmarks only
as stuff related to navigation on the water (I would ignore this or
better amend the page):
http://wiki.openstreetmap.org/wiki/Key:landmark

cheers,
Martin

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[Tagging] Feature Proposal - Voting - Plant Nursery

2011-01-03 Thread Kenny Moens

Hello,

Hereby I want to invite everyone to vote on the Plant Nursery proposal 
and its associated Plant tagging proposal:

http://wiki.openstreetmap.org/wiki/Proposed_features/Plant_nursery
http://wiki.openstreetmap.org/wiki/Proposed_features/Plant

Kind regards,
--

Kenny Moens


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Re: [Tagging] tagging a point of interest of sorts

2011-01-03 Thread Richard Welty

On 1/3/11 10:53 AM, M∡rtin Koppenhoefer wrote:

2010/12/16 Steve Bennettstevag...@gmail.com:

On Thu, Dec 16, 2010 at 12:23 PM, Richard Weltyrwe...@averillpark.net  wrote:

it depends on what an attraction is. i'm not averse to using it, but in the
US at least, an attraction is usually some place you park, maybe buy
tickets, and go in a building, park, etc for a more extended experience.

Yeah, but don't go thinking that every cultural stereotype surrounding
the word attraction has to apply to a tag of the same name.


the tradeoff here is that it's nice if tags do at some level match up
with expectations. as new mappers arrive, they don't have a history
of participating in these discussions and if we want them to stick
around, maybe we should avoid being contrary for the sake of being
contrary.


Btw, historic=yes is another candidate. Of the existing tags, that
might be the best actually.


IMHO those could both (the highway-marker and the dog) be tagged as
landmarks. Both of them do IMHO not qualify for artwork and at least
the marker is surely not an attraction (I guess also the dog is not
really a tourist attraction, but this should be judged upon with local
knowledge).

I found this page about landmarks, which seems to see landmarks only
as stuff related to navigation on the water (I would ignore this or
better amend the page):
http://wiki.openstreetmap.org/wiki/Key:landmark


i'd certainly prefer to see a more general definition of landmark which
applied to these sorts of not-exactly-an-attraction entities, as that
is certainly a normal usage of landmark.

richard


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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread yvecai
Let's take it on the opposite, we have devices to control water, sort of 
'dams'.

* Water can go above, under, trough, or between gates
* Can be fixed, moving, removable
* Can be nodes, ways, or polygons

I'm no expert in english, but somebody here could end up with a set of 
english word that would fit?


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Re: [Tagging] bridge=aqueduct mapped as polygon riverbank?

2011-01-03 Thread M∡rtin Koppenhoefer
2010/12/19 Dave F. dave...@madasafish.com:
 Hi

 Does anyone have an example of a bridge=aqueduct/yes that's been mapped as
 polygon riverbank to give width to the waterway?


I would say that riverbank is not the right tag for any kind of
bridges. The wiki says for riverbanks: This describes the tagging
scheme for large rivers, or sections of a river which are wide enough
to require mapping of distinct areas of water/river banks. so doesn't
actually define anything for canals ;-) (OK, maybe we should amend
this definition and substitute river by waterway or body of
flowing water so that canals are comprised). The require part of
the definition is pointless IMHO, as it is never required but could
be useful anywhere.

I guess your question refers to situations like:
http://de.wikipedia.org/w/index.php?title=Datei:KanalbrueckeDigoin.jpgfiletimestamp=20081223125641
http://de.wikipedia.org/w/index.php?title=Datei:WasserstrassenkreuzMinden.jpgfiletimestamp=20060105185751

more can be found here:
http://en.wikipedia.org/wiki/Navigable_aqueduct

In German those would probably not be called aqueduct at all, (in
German this is called Trogbrücke, which is kind of a bridge), that's
why I have some barrier in accepting that this is a kind of aqueduct
(maybe navigable aqueduct is not part of aqueducts?). I think this
is not a problem reduced to waterways but we should have a better
representation for bridges in general. I'd propose to have an
outlining polygon for the bridge, that describes the whole bridge
area, and to which a name for the bridge and other data can be
associated, which would also solve the problem whether 2 adjacent
bridges are really 2 separate bridges or simply one that seems to be 2
in OSM.

cheers,
Martin

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Re: [Tagging] bridge=aqueduct mapped as polygon riverbank?

2011-01-03 Thread john
The English Wikipedia article on navigable aqueducts gives water bridge as an 
alternate English-language name for such structures.

---Original Email---
Subject :Re: [Tagging] bridge=aqueduct mapped as polygon riverbank?
From  :mailto:dieterdre...@gmail.com
Date  :Mon Jan 03 11:44:11 America/Chicago 2011


2010/12/19 Dave F. dave...@madasafish.com:
 Hi

 Does anyone have an example of a bridge=aqueduct/yes that's been mapped as
 polygon riverbank to give width to the waterway?


I would say that riverbank is not the right tag for any kind of
bridges. The wiki says for riverbanks: This describes the tagging
scheme for large rivers, or sections of a river which are wide enough
to require mapping of distinct areas of water/river banks. so doesn't
actually define anything for canals ;-) (OK, maybe we should amend
this definition and substitute river by waterway or body of
flowing water so that canals are comprised). The require part of
the definition is pointless IMHO, as it is never required but could
be useful anywhere.

I guess your question refers to situations like:
http://de.wikipedia.org/w/index.php?title=Datei:KanalbrueckeDigoin.jpgfiletimestamp=20081223125641
http://de.wikipedia.org/w/index.php?title=Datei:WasserstrassenkreuzMinden.jpgfiletimestamp=20060105185751

more can be found here:
http://en.wikipedia.org/wiki/Navigable_aqueduct

In German those would probably not be called aqueduct at all, (in
German this is called Trogbrücke, which is kind of a bridge), that's
why I have some barrier in accepting that this is a kind of aqueduct
(maybe navigable aqueduct is not part of aqueducts?). I think this
is not a problem reduced to waterways but we should have a better
representation for bridges in general. I'd propose to have an
outlining polygon for the bridge, that describes the whole bridge
area, and to which a name for the bridge and other data can be
associated, which would also solve the problem whether 2 adjacent
bridges are really 2 separate bridges or simply one that seems to be 2
in OSM.

cheers,
Martin

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Reserve your right to think, for even to think wrongly
is better than not to think at all. -- Hypatia of Alexandria
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Re: [Tagging] Feature Proposal - Voting - Plant Nursery

2011-01-03 Thread Kenny Moens

Robert,

I think best is to apply the common guidelines here?

A rule of thumb for enough support is /8 unanimous approval votes/ or 
/15 total votes with a majority approval/, but other factors may also be 
considered (such as whether a feature is already in use).  -- Source: 
http://wiki.openstreetmap.org/wiki/Proposed_features#Proposal_status_process


PS: if other factors apply, please advise, I'm quite new to the 
proposal/voting process on OpenStreetMap.


Kind regards,

Kenny Moens


On 03/01/2011 19:18, Robert Elsenaar wrote:

After how many votes your proposal is approved?

-Robert-

-Oorspronkelijk bericht- From: Kenny Moens
Sent: Monday, January 03, 2011 5:13 PM
To: Tag discussion, strategy and related tools
Subject: [Tagging] Feature Proposal - Voting - Plant Nursery

Hello,

Hereby I want to invite everyone to vote on the Plant Nursery proposal
and its associated Plant tagging proposal:
http://wiki.openstreetmap.org/wiki/Proposed_features/Plant_nursery
http://wiki.openstreetmap.org/wiki/Proposed_features/Plant

Kind regards,


--
Kenny Moens

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Paul Norman
They both have elements of flow control, but function in quite different
ways and look very different. A weir is used to raise the water level or
control flow, with water flowing over the top. A sluice gate is essentially
a valve for small waterways.

 -Original Message-
 From: tagging-boun...@openstreetmap.org [mailto:tagging-
 boun...@openstreetmap.org] On Behalf Of Ulf Lamping
 Sent: Monday, January 03, 2011 2:04 AM
 To: tagging@openstreetmap.org
 Subject: Re: [Tagging] Feature Proposal - RFC - sluice_gate
 
 Am 03.01.2011 02:59, schrieb Paul Norman:
  I've set up a proposal for sluice_gates, which are typically found on
  small waterways in agricultural areas at
  http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate
 
 What's the difference to waterway=weir?
 
 http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dweir
 
 Regards, ULFL
 
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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Paul Norman
All the sluice gates I've seen are on the scale of 1m in opening size. A
quick google image search also seems to only turn up small gates. I suppose
there could be some large gates out there, so the proposal might need to
include ways or even areas. 

As for riverbanks, the ones I've seen are near riverbanks, but not actually
on them. In the case of a sluice gate that is actually on the bank, you'd
have a node that is shared between the small waterway (waterway=ditch or
waterway=stream), the riverbank, and is tagged with waterway=sluice_gate

 -Original Message-
 From: tagging-boun...@openstreetmap.org [mailto:tagging-
 boun...@openstreetmap.org] On Behalf Of Peter Wendorff
 Sent: Monday, January 03, 2011 1:52 AM
 To: tagging@openstreetmap.org
 Subject: Re: [Tagging] Feature Proposal - RFC - sluice_gate
 
 Hi.
 I'm not very familiar with waterway tagging, but AFAIK these are tagged
 as riverbanks, too.
 Your proposal doesn't say anything about how to map sluice gates at
 these bigger rivers as it proposes the usage on nodes only.
 
 As sluice gates assumably will be more on bigger waterways, that seems
 to be an important point to add for me.
 
 regards
 Peter
 
 Am 03.01.2011 02:59, schrieb Paul Norman:
  I've set up a proposal for sluice_gates, which are typically found on
  small waterways in agricultural areas at
  http://wiki.openstreetmap.org/wiki/Proposed_features/sluice_gate
 
 
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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Dave F.

On 03/01/2011 21:01, Richard Welty wrote:

floodgate would seem to be the general term for these sorts
of things; sluice_gate would be a subtype:


I would say it's the other way around - flood prevention is one use of a 
sluice gate.


As I pointed out, a sluice gate an be used for irrigation purposes.

Dave F.

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Ulf Lamping

Am 03.01.2011 21:20, schrieb Paul Norman:

They both have elements of flow control, but function in quite different
ways and look very different. A weir is used to raise the water level or
control flow, with water flowing over the top. A sluice gate is essentially
a valve for small waterways.


You might add such a description to the wiki page, as others might be 
confused as much as I was.


BTW: My feeling is, that sluice gates formerly were tagged with 
waterway=weir most of the time anyway.



The suggested term floodgate would be more intuitive for me as a none 
native speaker - if the term fits for native speakers as well.


Regards, ULFL


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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Richard Welty

On 1/3/11 4:16 PM, Dave F. wrote:

On 03/01/2011 21:01, Richard Welty wrote:

floodgate would seem to be the general term for these sorts
of things; sluice_gate would be a subtype:


I would say it's the other way around - flood prevention is one use of 
a sluice gate.


As I pointed out, a sluice gate an be used for irrigation purposes.
i see your point, but the result is that i don't that we have a proper 
subset

relationship here.

the tagging selected will of necessity be a compromise, then.

richard


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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Elizabeth Dodd
On Mon, 3 Jan 2011 12:33:18 -0800
Paul Norman penor...@mac.com wrote:

 All the sluice gates I've seen are on the scale of 1m in opening
 size. A quick google image search also seems to only turn up small
 gates. I suppose there could be some large gates out there, so the
 proposal might need to include ways or even areas. 


If you check this article
http://www.theaustralian.com.au/news/nation/sightseers-flood-to-spilling-dam/story-e6frg6nf-1225936851387
you will find the following synonyms used
floodgate
spillway gate
spillgate
sluice gate

and here is the official picture of Wivenhoe Dam
http://www.seqwater.com.au/public/sites/default/files/userfiles/image/dams/wivenhoe_spillway.jpg

and the official picture of Somerset Dam
http://www.seqwater.com.au/public/sites/default/files/userfiles/image/dams/somerset_dam2.jpg

here, in irrigated agriculture the small things are called pipe ends
and headwalls I don't think either of these terms are suitable.
http://www.colyconcrete.com.au/images/content-images/altin-headwall-steeldoor-2.jpg
http://www.colyconcrete.com.au/images/content-images/altin-headwall-steeldoor-1.jpg
http://www.colyconcrete.com.au/images/content-images/altin-headwall-stepped-2.jpg

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Elizabeth Dodd
On Mon, 03 Jan 2011 15:23:34 +
Dave F. dave...@madasafish.com wrote:

  Balranald Weir out of the water
  http://billiau.net/zoph/photo.php?photo_id=17253  
 
 Although it's hard to decipher what's happening in the second
 photo' , I would describe the movable parts as sluice gates not weirs.

When the flood is over I'll take a chance to photograph the weir in
place. It is a weir, intended to regulate water flow. it does not have
sluice gates

The information sign onsite says
Structure: A concrete and steel weir with a crest length of 40 metres
incorporating removable stop panels and trestles which can be lowered
during floods.
http://billiau.net/zoph/photo.php?photo_id=17250

It also contains a Deelder Fish Lock
http://billiau.net/zoph/photo.php?photo_id=17252

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Elizabeth Dodd
On Mon, 03 Jan 2011 18:28:06 +0100
yvecai yve...@gmail.com wrote:

 Let's take it on the opposite, we have devices to control water, sort
 of 'dams'.
 * Water can go above, under, through, or between gates
 * Can be fixed, moving, removable
 * Can be nodes, ways, or polygons
 
 I'm no expert in english, but somebody here could end up with a set
 of english word that would fit?
 

just add a lock for boats and a lock for fish and we'll be almost done




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Re: [Tagging] Airport subtypes

2011-01-03 Thread Steve Bennett
On Fri, Dec 31, 2010 at 6:53 PM, Eugene Alvin Villar sea...@gmail.com wrote:
 A scan through the wikipedia gives me
 international airport
 domestic airport
 regional airport
 airstrip or airfield

 +1

 Why not adopt the usual subtagging scheme:

 aeroway=aerodrome
 aerodrome=international|regional|domestic|etc.

I have a feeling we discussed this a few months ago. My suggestion
would be to simply use numbers, if you're talking about a ranking
scheme:

aeroway=aerodrome
aerodrome_level=1|2|3|4|5

This avoids all the problems we get when one country uses regional
to mean something different from another, and the mappers there hate
using regional in a way that is non-intuitive to them. Whereas with
numbers, we can simply say in Timbuktu, regional is a level 2, but in
Germany it's level 3.

Also, I definitely think we should try and align to external standards.

Steve

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Re: [Tagging] designated bike lane

2011-01-03 Thread Steve Bennett
On Sat, Jan 1, 2011 at 9:27 AM, Anthony o...@inbox.org wrote:
 Any suggestions how to tag this?
 http://wiki.openstreetmap.org/wiki/File:IMG_7491.JPG

This raises an interesting philosophical question: Does OSM map what
*we* consider to be a bike lane (or a park, or a service road, or a
tertiary highway...) or what *someone else* says it is? The latter
path is sometimes simpler and gives more consistent, objective
results: the bike lane here is clearly signed, and can simply be
marked bicycle=lane. If we take the former option, then we get
enormous amounts of debate about how to tag even a single entity, as
seen in this thread: well, if it were more than 4 feet wide, I'd
consider it a bike path, otherwise not...

Me, I lean towards the someone else for some things like bike lanes,
and the we decide path when there is no useful authority.

It would good to have some policy on this.

Steve

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Re: [Tagging] designated bike lane

2011-01-03 Thread Greg Troxel

Steve Bennett stevag...@gmail.com writes:

 This raises an interesting philosophical question: Does OSM map what
 *we* consider to be a bike lane (or a park, or a service road, or a
 tertiary highway...) or what *someone else* says it is? The latter
 path is sometimes simpler and gives more consistent, objective
 results: the bike lane here is clearly signed, and can simply be
 marked bicycle=lane. If we take the former option, then we get
 enormous amounts of debate about how to tag even a single entity, as
 seen in this thread: well, if it were more than 4 feet wide, I'd
 consider it a bike path, otherwise not...

 Me, I lean towards the someone else for some things like bike lanes,
 and the we decide path when there is no useful authority.

I agree 100%.

To help sharpen this, I'll observe that the debate here has not been
about is that a bike lane.  It's been about do we want to be
complicit in calling it a bike lane (even though it clearly is intended
as one) because we don't think it's safe.  The intellectually honest
position in the db is The government thinks its a bike lane.  Note that
it's too narrow to be safe.  Rendering is harder, but we don't have to
debate that here.


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