[Talk-GB] Famous post-box

[Jez Nicholson]

I just wanted to tell someone...and you lot might be the only ones who'd
appreciate it.

Following up information for http://openplaques.org/plaques/49381 I just
added post-box https://www.openstreetmap.org/node/5617834875 which was
famously set fire to by Lady Rhondda, Suffragette, in 1913.
http://www.bbc.co.uk/news/uk-wales-22740340 I put a note on the node.

- Jez
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Re: [Talk-GB] Footpaths - search for the missing ones

[Nick Whitelegg]

Hello Rob, Jerry, Richard,


Agree with what Rob's saying - while Rowmaps is a good point to find missing 
paths for OSM, the "FPs" 1900 maps could be used to find "green lanes" aka 
"other routes with public access" or unrecorded paths - and could certainly, 
with the other historical OS maps, be used to find missing paths for 2026.


I think with the right website we could get a crowdsourced project going to 
both collect evidence for re-opening paths before the deadline, and, at the 
same time, find missing paths for OSM too. Providing a council data overlay 
would be another way of helping find the OSM paths.


Rob - yes your help on the whole promotion side of things would be very 
valuable as that isn't particularly my strength. If you could have a word with 
NLS to seek permission to use their tiles that would be great too.


Hopefully we'd be ok to use the OOC tileservers of OSM too, though if not I 
guess we could obtain the tiles as a ZIP or tar.gz archive and host them 
separately.


I'd be more than happy - indeed enthusiastic - to do the coding and get initial 
hosting (a Bytemark VM like Freemap's would do for now) - though as I said 
earlier the other skill we need is someone with good HCI/UX skills as that is 
not my area of strength.

(If we have difficulty here, it's conceivable it could be done as a student 
project at my university)


Thinking of a name, how about "Find the Footpaths"?


Nick




From: Rob Nickerson 
Sent: 12 May 2018 23:49:19
To: SK53
Cc: Nick Whitelegg; Talk-GB
Subject: Re: [Talk-GB] Footpaths - search for the missing ones

Hi Jerry, Nick, Richard,

Footpaths was what got me in to OSM so I'm so pleased to see all this :-) 
You've got me excited about getting back out there over the summer and picking 
up as many new paths as possible.

@Jerry: Your comment about the GB1900 caught me off guard at first. You seem to 
be saying that even with filtering there are still too many results from GB1900 
to investigate. Caught off guard because isn't this OSM's strength - the 
ability to go out and crowd source all this? Re-reading your post, I see that 
what you are saying is that OSM has a lot of missing paths but the rowmaps data 
is just a good as a starting point for finding these. The GB1900 data might 
them be used to find stuff missing from the local authorities dataset. Is that 
right or am I still not understanding?

I think we can do a project here. As you know, I'm not so good on the technical 
side, but am more than willing to throw my support behind any project where I 
can (e.g. engaging with NLS, comms, promotion, seeking new members to join the 
hunt and therefore join OSM). It sounds like this is what the 3 of you are 
looking at this already :-). Give me a shout if you need anything.

>Is there permission to use OOC tiles

>The NLS 6 inch maps are needed for good comparison, although I suspect many 
>paths will be on 1:25k

I'm not sure about the OOC tiles; I think Andy Robinson (blackadder) was 
involved with the scanning, but ultimatley these are hosted on OSM servers so 
you need to check with them.

We do have a great relationship with the NLS though. Although they have put 
some of their maps behind a subscription API, they are big supporters of the 
OSM (and OHM) projects. The publish 6 inch and 25 inch [1] for all of Great 
Britain now. I am more than willing to speak with NLS to see if we can 
formalise this as part of a footpath project. There's no harm in asking! Just 
let me know.

P.S. Sorry if this feels like me being slow / repeating the obviously - am 
feeling under the weather at the moment

[1] https://maps.nls.uk/openlayers/?m=1=176

Rob


On Fri, 11 May 2018 at 16:40, SK53 
> wrote:
Quick impressions:

  *   There's a fair amount of noise in text, but most are "F.P."
  *   Lat/lon could be reduced from 15 decimal places, would make file size far 
smaller. OSM use 7, but I suspect 5 (~ 1 m accuracy) would be fine.
  *   Filtering by a buffer round OSM roads does not reduce count enough to be 
useful. 21k points in East Mids goes to 14k with 20 m buffer, 10 with 50 m 
buffer.
  *   Instead created 1000 m buffer around points and looked for distance from 
OSM highways in that buffer. This allows to focus on points which are distant 
from existing highways.
  *   In the main dots which are a long way from highways are clustered in 
areas we already know lack footpaths. Map shows points over 400 m from an OSM 
highway, underlain by a heatmap of total length of missing prows. It is 
apparent that these are coincident (W of Derby, around Buxton, SE Derbyshire, 
Trent Valley in N Notts, much of Lincolnshire). Other areas may be simply a 
result of rather different comparison periods for the data (distance from road 
is 3 years old OSM data). 
https://www.dropbox.com/s/nz0893l9io61vtk/gb1900_fps1.jpg?dl=0
  *   Paths which were formerly