Re: [Tagging] Tracks for moveable large objects

[Allan Mustard]

If it is moveable it is a gantry crane.  A gantry per se can be
immobile, right?

That aside, rails are rails.  Maybe not a rail line in the conventional
sense, but I tagged an (unfortunately disused) children's train in
Ashgabat https://www.openstreetmap.org/way/429019713 as a railway even
though it goes around and around, or used to, and has no destination.

light_rail  unused
name 
Parawozik
name:en 
Children's Toy Train
name:ru 
Детская железная дорога
railway 
disused

usage 
tourism


On 11/23/2018 2:28 PM, Michael Patrick wrote:
>
> Some radio telescopes are located on what could be called rail
> lines. ...
> though these lines have to carry more localised weight and have a
> much
> larger track width. For a photo see
> http://www.atnf.csiro.au/resources/imagebank/images/ATCA_in_a_line.jpg
>
> Ideas for suitable tags for these 'rail lines'?
>
>
> 'Rails' certainly, but not 'rail lines' in the conventional sense., in
> that a rail line implies an origin and destination ( in the 'railroad'
> sense ), in this case all are parts of a single device, albeit a very
> large one.
>
> A movable support structure primarily constrained in the horizontal
> plane is known as a *gantry* (system). The constrained path might be
> pavement, rails, sprockets and the movement contact point might be
> wheels, slides, skates, airbags, tracks, pivot, or some such. The path
> might be straight as for cranes or circular in the case of irrigation
> systems, and other geometries that might include switches. They range
> in size from tabletops
>  to almost a
> kilometer
> 
> in some mining and agriculture operations
> .
> Their purpose and action differ from railway / rail line (etc.)  -
> i.e. primarily positioning
>  vs.
> transport.
>
> Michael Patrick
>
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[Tagging] Tracks for moveable large objects

[Michael Patrick]

>
> Some radio telescopes are located on what could be called rail lines. ...
> though these lines have to carry more localised weight and have a much
> larger track width. For a photo see
> http://www.atnf.csiro.au/resources/imagebank/images/ATCA_in_a_line.jpg
>
> Ideas for suitable tags for these 'rail lines'?
>

'Rails' certainly, but not 'rail lines' in the conventional sense., in that
a rail line implies an origin and destination ( in the 'railroad' sense ),
in this case all are parts of a single device, albeit a very large one.

A movable support structure primarily constrained in the horizontal plane
is known as a *gantry* (system). The constrained path might be pavement,
rails, sprockets and the movement contact point might be wheels, slides,
skates, airbags, tracks, pivot, or some such. The path might be straight as
for cranes or circular in the case of irrigation systems, and other
geometries that might include switches. They range in size from tabletops
 to almost a kilometer

in some mining and agriculture operations
.
Their purpose and action differ from railway / rail line (etc.)  - i.e.
primarily positioning
 vs.
transport.

Michael Patrick
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[Tagging] Tracks for moveable large objects

[Warin]

Hi,


Some radio telescopes are located on what could be called rail lines.


though these lines have to carry more localised weight and have a much 
larger track width.



For a photo see

http://www.atnf.csiro.au/resources/imagebank/images/ATCA_in_a_line.jpg


Ideas for suitable tags for these 'rail lines'?


My first idea...

man_made=rail_line, width=* for the track width, length=* for the track 
length???



At the moment I have tagged railway=rail and a note=not for trains.

See Way: 647916738

-

This same problem occurs for other large objects on rails..e.g. large 
cranes (thinking of one 250 ton crane on a dockside), possibly rocket 
launches.


So it is not just for radio telescopes.


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