Changeset: 57686053
road classifications aligned with Cumbria CC network map data
Closed by kreuzschnabel
Tags
created_by | JOSM/1.5 (13576 de) |
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source | Esri World Imagery (Clarity) Beta; survey |
Discussion
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Comment from lakedistrict
Could you link to the CCC map data please?
By the way, we've got a little ongoing project to add details to the roads in Cumbria - https://wiki.openstreetmap.org/wiki/User:Gurglypipe/North_West#Road_navigation_for_tourists
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Comment from SK53
I'm not sure this is a particularly good idea. This was done in the Highlands and it turned out that many of the local highway classifications were based on physical properties rather than the functional view which is used on OSM. The highway authority might be useful to highlight potential discrepancies, but its best to crosscheck against other points to cross-check are OOC OS maps where the classification is usually similar to that typically used by OSM.
Also highway authority maps/data may not be a truly usable source. I think some have given explicit permission for use of lists of streets by OSM. The maps will always have some issues with OSGB copyright.
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Comment from kreuzschnabel
I thought a bit about this but found it useful at last. It is true (and good) that road tagging in OSM is supposed to depict the traffic importance rather than the official classification. From this point of view, Villages like Great Asby or Crosby Garrett being reachable only by unclassified roads does not seem appropriate to me. This is a cultivated and habitated area and needs more than unclassified roads only for stretches of 12 miles and more. The road from Raisbeck to Little Asby is the only road to cross that limestone highland at all, and though there is not too much traffic, it’s surely of greater importance than an unclassified road, leading e.g. to a remote hamlet. There are even more C roads given in the map on https://apps1.wdm.co.uk/Pipcumbriahms/map.aspx?cg=PROW but I didn’t want to include all the short ones for they’re surely not that important. As for copyright issues, I always thought that, while we may not copy from the drawing as such, we are still free to extract abstract data (such as mountain elevations or place names).
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Comment from SK53
I would agree that all but the smallest villages should notionally be accessible by tertiaries, and have used it as a rule of thumb when looking at roads in the past: at the very least one road should be feasible for larger vehicles. As I said the two old OS maps + OS Streetview also provide another comparison point, but nothing really substitutes for a visit.
On a slightly separate point: adding passing places on the narrow country roads might also be useful to assist in identifying the unclassifieds vs tertiaries where no roads have white lines.
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Comment from kreuzschnabel
nothing really substitutes for a visit: true. That’s why I prefer to map regions I have already seen, even if its a while ago. Last time I came through here was on my latest C2C in 2012 but I don’t think the roads have changed significantly since. As for the passing places, I actually did :D
https://www.openstreetmap.org/node/340514232
https://www.openstreetmap.org/node/340514230 -
Comment from SK53
Heatmap of Passing Places https://www.flickr.com/photos/sk53_osm/41035716242/in/photostream/
- 430435349, v2
- 430435351, v2
- 430435354, v4
- 430435357, v2
- 460234745, v2
- 460234746, v3
- 574825669, v2
- High Lane (574825672), v2
- Broammire Road (23958307), v13
- Sunbiggin (24291313), v8
- 24291503, v2
- 24291504, v4
- 24291505, v3
- 24291872, v8
- 24291880, v13
- 24291893, v4
- 24291894, v3
- 27632002, v12
- 28675041, v8
- High Lane (41436970), v9
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