I just checked on the Vision of Britain site: the core data is currently released under CC-BY-NC. I presume OSM-UK have a waiver from these terms.
Undoubtedly there will be rights of way which have effectively fallen in to abeyance. I noted one the other day which was on NPE maps, but no longer visible on the ground nor on modern OS maps, nor in the data available from rowmaps. Broadly speaking such paths fall outside the ambit of OSM, but finding such things is very valuable. Note that we have other sources as well. As a quick experiment I spent 15 minutes quickly tracing paths marked on NPE maps for SE Notts and managed just over 200 using JOSM. This is of course what I should have done many years ago rather than adding them to OSM (hindsight is a wonderful thing). The geometry wont be very good, but can be refined using the 1:25 OOC maps. Such data can be more useful than the raw names from GB1900, but could be used in conjunction. Furthermore with suitable tagging this can be added to OHM (I would suggest start_date=1900-01-01 with end_date=1950-12-31 unless one knows path is still in use) which makes it a tad easier for sharing (although OHM overpass instance is not working atm). A couple of other things to note regarding the GB1900 data: - Many current footpaths will be marked as Bridle Roads (B.R.). It would be useful to add these names to the available data. - footpaths and bridle roads often fall well short of their current entry points because the current right of way will have followed farm tracks and service roads, which in many cases have disappeared. Returning to use of rowmaps I have a recent geojson file of missing paths in the North Midlands (Staffs, Derbys, Notts, Leics & Rutland) up on github: https://github.com/SK53/osm-prow-stats. I intend to add other areas as time permits. Unfortunately I've never got my comparison process to work on PostGIS so I still use QGIS which is a little unwieldy for automation. I process rowmaps data into a fairly standard form in PostGIS before making the comparisons. This <https://flic.kr/p/25DgebX>is a heat map of missing footpaths in the East Midlands area as of Autumn 2017, I compare length of missing paths with total length in a tetrad (2km grid square). It readily shows hotspots of missing paths. This was done to identify suitable places for our 2018 New Year footpath mapping. The National Forest area in SE Derbyshire still has a lot of outstanding mapping to do: it's not too bad as walking country either. Jerry On 10 May 2018 at 11:34, Nick Whitelegg <nick.whitel...@solent.ac.uk> wrote: > > I might be potentially interested in developing something with this data, > partly because I already run a site (freemap) which shows OSM maps for > walkers and stores them in a PostGIS database - so it should be an easy > process to filter out the data to find those points which are not close to > an OSM highway. It would also be easy for me to adapt my existing code to > visualise these "FP" points. Presumably they are just points with no > indication of direction of the path? An "FP" label presumably has > orientation so something could possibly be deduced about its course at that > point if orientation was available too. > > > I also already visualise the data so visualising the missing ROWs would be > easily done too. > > > It would be nice to develop features to find nearby locations where there > are lots of these missing paths, e.g. if I am in Southampton, find the > nearest village with 10, 20 (or whatever) missing paths within a 5-mile > radius. > > > Would be nice to have an app too so you can find these footpaths while > you're actually out. > > > > So potentially interested in this, yes. I don't want to commit 100% but > would be nice to have the data. > > > Nick > > > > ------------------------------ > *From:* Richard Fairhurst <rich...@systemed.net> > *Sent:* 10 May 2018 09:07:49 > *To:* talk-gb@openstreetmap.org > *Subject:* Re: [Talk-GB] Footpaths - search for the missing ones > > Rob Nickerson wrote: > > Basically we have point data of historic footpaths (some 300k points) > and > > I think it would be amazing to compare this to OSM to see if we can find > > more footpaths to map. > > Very cool. Could you post the data somewhere? > > Richard > > > > -- > Sent from: http://gis.19327.n8.nabble.com/Great-Britain-f5372682.html > > _______________________________________________ > Talk-GB mailing list > Talk-GB@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-gb > > _______________________________________________ > Talk-GB mailing list > Talk-GB@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-gb > >
_______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
