[Talk-GB] Tagging canal staircase locks

[Michael Collinson]

I've experimentally enhanced my local Bingley Five Rise with both 
Edward's and Tom's suggestions.

https://www.openstreetmap.org/node/280721691

My main motivation is how to highlight subjectively "interesting" 
features for tourism and education purposes with quantitative tagging. 
It is now possible to find the general location as a tourism=attraction 
and pull up full information about it, including all the locks. This is 
where I am going with a personal Android app.

Being more serious about relations than my first thread comment, I 
loathe the over-use and often unnecessarily complex use of relations 
where a simpler solution will suffice. That said, it took a two cups of 
coffee research and thought but I think the not well-liked 'group' 
relation does seem ideal here IF you want more detail rather than just 
Where Is It?

For Foxton Lock, I've followed Dave F's suggestion and simply added more 
detail to the existing place=locality tag. So, you can find it and know 
what it is using free-form text, but doesn't say anything quantitative 
about the locks themselves - perhaps that just doesn't matter?

https://www.openstreetmap.org/node/2413496279 Foxton Locks

I noticed that one can't find the Fort Augustus Flight at all in OSM, so 
I have tried a half-way approach and created a place=locality tag but 
put it on a group relation:

https://www.openstreetmap.org/relation/13089161 Fort Augustus Lock 
Flight (that appears to be the formal name), alt name Fort Augustus Locks


NOTE: The edits are experimental, so if anyone wants to re-edit, FEEL 
FREE, (as long as it is not a straight deletion!).

Mike



Other staircase locks mentioned in the thread or that I stumbled across:

https://www.openstreetmap.org/#map=17/51.35194/-2.02505 Caen Hill - 
Difficult to find in OSM, so definitely needs some TLC

https://www.openstreetmap.org/way/239118607 Neptune's Staircase - Mapped 
as a tourism=attraction on a single way bounding each lock pool.

https://www.openstreetmap.org/node/330275022#map=15/53.1268/-2.6321 
Bunbury Staircase Locks. Mapped as place=location, tourism=attraction on 
a node

https://www.droitwichcanals.co.uk/page24.html :

"The largest narrow boat staircase is the Watford locks which has four 
steps and is located on the Leicester line of the Grand Union Canal.
On the Droitwich Junction Canal we have a two staircase lock - locks 4 & 
5. The next nearest Staircase lock are the Stourport locks on the 
Staffordshire and Worcestershire Canal"

On 2021-08-12 22:40, Edward Bainton wrote:
> Fort Augustus Flight on the Caledonian Canal is also a staircase (pure 
> staircase afaik; no passing place).
>
> I looked at the wiki. How about:
>
> waterway=canal
> lock=yes
> lock:type=staircase_lock
> [Other values: =tide_lock, etc? Pound lock assumed]
> lock_number=1/5
> lock_name:flight=Fort Augustus Flight
>
> On Wed, 11 Aug 2021, 19:49 Philip Barnes, <phil at trigpoint.me.uk 
> <mailto:phil at trigpoint.me.uk>> wrote:
>
>     I would have thought the obvious staircase locks to look at is Foxton.
>
>     I remember going there with the school. From memory the gates are
>     shared between locks with a wide passing place in the middle of
>     the flight.
>
>     Phil (trigpoint)
>
>     On Wednesday, 11 August 2021, Tom Crocker wrote:
>     > On Wed, 11 Aug 2021, 16:41 Michael Collinson, <mike at ayeltd.biz
>     <mailto:mike at ayeltd.biz>> wrote:
>     >
>     > > I would hazard a guess that you are the first to think of it
>     and the if
>     > > anyone else has it will Richard Fairhurst and possibly Gervase
>     Markham,
>     > > (not sure if he is still active?).
>     > >
>     > > Looking a Bingley Five Rise, in 2008 I (cyclist with very
>     amateur interest
>     > > in industrial heritage), mapped the the lock gates themselves.
>     In 2011,
>     > > dysteleologist
>     <https://www.openstreetmap.org/user/dysteleologist
>     <https://www.openstreetmap.org/user/dysteleologist>> with
>     > > an interest in man-made waterways thought to think of the
>     locks themselves,
>     > > creating canal way segments with lock=yes. At that is as far
>     as it has gone.
>     > >
>     > > Looks like a job for a relation? [Slight shudder and exits
>     stage left.]
>     > >
>     > > Mike
>     > >
>     > > https://www.openstreetmap.org/#map=19/53.85572/-1.83772
>     <https://www.openstreetmap.org/#map=19/53.85572/-1.83772> Bingley
>     Five Rise
>     > >
>     >
>     > Looks like another case where a general purpose group relation
>     would be
>     > useful such as
>     >
>     https://wiki.openstreetmap.org/wiki/Proposed_features/Group_Relation
>     <https://wiki.openstreetmap.org/wiki/Proposed_features/Group_Relation>
>     > Unfortunately I don't think there's any support for it in renderers
>     > currently.
>     >
>     > Tom
>     >
>     > >
>     > >
>     >
>
>     -- 
>     Sent from my Sailfish device
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