Re: [Tagging] aeroway=runway - wiki fiddling

[Dave F]

Something similar in concept to a river could be developed. A linear way 
for the the routing etc (waterway), and an area to indicate the outline 
of the runway/taxiways (riverbank).



I always map them as closed polygons because:

 * It's more accurate
 * Runways aren't necessarily rectangular, Some have bulbous turning
   circles to come back down the runway, rather than a one way taxi
   network.
 * Even grass strips for microlights render very wide in Carto when
   zoomed out.

Please don't let whoever changed the wiki to read 'runaway = Runway of 
an airfield' ever compile a dictionary


DaveF.

On 09/03/2018 18:27, Paul Johnson wrote:



On Mar 9, 2018 03:49, "Austin Zhu" > wrote:


Well, maybe there is someone who thinks mapping runway as area is
wrong? I think that both way and area are OK, because the way
element matches the way we map taxiways. So it is useful when
others need to guide their plane using osm data(maybe in flight
simulator softwares). Mapping as area can show the width of the
runway and thus is more realistic. The best method should be using
both elements. Just like highway objects. Obviously, the wikipage
needs some edit or restoration.


Map the runways and taxiways as linear (who knows, someone might want 
to have a routable model for flight simulators or similar games), and 
map the negative space (grass infields, etc) as areas?



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Re: [Tagging] aeroway=runway - wiki fiddling

[Dave F]

They can now. They just can't be bothered. If a roundabout can be 
navigated, so can the boundary of an area.


DaveF

On 11/03/2018 22:45, Warin wrote:


Eventually routers will have to deal with areas that are routable .. 
pedestrian areas , step areas as well as runways that are areas.



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Re: [Tagging] aeroway=runway - wiki fiddling

[Warin]

On 3/10/2018 5:27 AM, Paul Johnson wrote:



On Mar 9, 2018 03:49, "Austin Zhu" > wrote:


Well, maybe there is someone who thinks mapping runway as area is
wrong? I think that both way and area are OK, because the way
element matches the way we map taxiways. So it is useful when
others need to guide their plane using osm data(maybe in flight
simulator softwares). Mapping as area can show the width of the
runway and thus is more realistic. The best method should be using
both elements. Just like highway objects. Obviously, the wikipage
needs some edit or restoration.


Map the runways and taxiways as linear (who knows, someone might want 
to have a routable model for flight simulators or similar games), and 
map the negative space (grass infields, etc) as areas?




Eventually routers will have to deal with areas that are routable .. 
pedestrian areas , step areas as well as runways that are areas.
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Re: [Tagging] aeroway=runway - wiki fiddling

[Christoph Hormann]

On Friday 09 March 2018, Martin Koppenhoefer wrote:
> I have noticed that there is a lot of change happening on the runway
> wikipage.
>
> Up to some months ago, the longstanding definition for a runway was:
> "A strip of land kept clear and set aside for airplanes to take off
> from and land on."
>
> This was changed to "Runway of an airfield"

Noticed that too - to complete the self referential circle you would now 
just have to edit

https://wiki.openstreetmap.org/wiki/Tag:aeroway%3Daerodrome

And change it to "the area around a runway". ;-)

> Another main aspect concerns the mapping as linear feature and or as
> area. [...]

This is a topic that seems to turn up every few months or so.  The basic 
facts are:

* For runways the two node way with optionally a width tag is by far the 
dominating way to map them.  A variety of other methods and suggestions 
exist (linear way + polygon with the same tag, polygon only, linear 
way+ polygon with other tag) but none of them has found consistent use 
so far.
* A four node polygon transports no additional information for a runway 
compared to a two node way with a width tag.
 
-- 
Christoph Hormann
http://www.imagico.de/

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Re: [Tagging] aeroway=runway - wiki fiddling

[Paul Johnson]

On Mar 9, 2018 03:49, "Austin Zhu"  wrote:

Well, maybe there is someone who thinks mapping runway as area is wrong? I
think that both way and area are OK, because the way element matches the
way we map taxiways. So it is useful when others need to guide their plane
using osm data(maybe in flight simulator softwares). Mapping as area can
show the width of the runway and thus is more realistic. The best method
should be using both elements. Just like highway objects. Obviously, the
wikipage needs some edit or restoration.


Map the runways and taxiways as linear (who knows, someone might want to
have a routable model for flight simulators or similar games), and map the
negative space (grass infields, etc) as areas?
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Re: [Tagging] aeroway=runway - wiki fiddling

[Austin Zhu]

Well, maybe there is someone who thinks mapping runway as area is wrong? I
think that both way and area are OK, because the way element matches the
way we map taxiways. So it is useful when others need to guide their plane
using osm data(maybe in flight simulator softwares). Mapping as area can
show the width of the runway and thus is more realistic. The best method
should be using both elements. Just like highway objects. Obviously, the
wikipage needs some edit or restoration.

Another thing I want to say is that should the overrun section be a part of
the runway? I saw some users deleted or split the overrun section from a
runway object. The runway article on Wikipedia includes that overrun in
"Sections of a runway" part. So I'm thinking if I can address it clearly on
the wikipage. Tell me what you think about it! (Kind of diverted from the
discussion)

Regards,
Austin Zhu


On Fri, Mar 9, 2018, 17:13 Martin Koppenhoefer 
wrote:

> I have noticed that there is a lot of change happening on the runway
> wikipage.
>
> Up to some months ago, the longstanding definition for a runway was:
> "A strip of land kept clear and set aside for airplanes to take off from
> and land on."
>
> This was changed to "Runway of an airfield"
>
> Another main aspect concerns the mapping as linear feature and or as area.
> There used to be a paragraph stating:
> Mapping aeroway =runway
> as areas is disputed. You can join the discussion here
>  and
> here
> 
> .
>
> Sometimes *in addition* the outline of the runway is mapped as [image:
> Area]  area with aeroway
> =runway + area
> =yes
> .
>
>
> This is also reflected in the data, where area=yes is still a used
> combination with this tag, but the whole paragraph was removed some time
> ago and today also the "area"-object was removed from the "mapped as"
> property.
>
> Cheers,
> Martin
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