In the iD editor if a polygon is cut it then becomes a multipolygon relation and stays as such even if you glue stuff back together. I suspect this might be the origin of the multipolygon. It does make it a little tedious when re-shaping areas.

Thanks, I'll add the maxheight, and see if I can check any bridges further S (often a railway was built to same tolerances so its a good way to track other missing height restrictions).

I'd noticed the street lights but hadn't added them as lit=yes. Sounds like you're tracking the ring road changes pretty thoroughly (we did this on the A46 a whole 9 years ago http://sk53-osm.blogspot.com/2011/05/along-fosse-way-mapping-new-road.html & Kev - mentioned in the post - tweets nice videos similar to yours).

In principle I'm just adding rooftop solar power across North Kesteven, but a consequence is one notices lots of things (next up I'll be asking about bridleways near Brant Broughton :-) ). Now off to find out the status of the Quaker Meeting House in that village.

Ah, I've reviewed this again and the traffic light position as it was originally was too far East, roughly in line with first house to the S, or around 50 m (has been at that location for a very long time, see node/212763059/history), and for some reason thought I couldn't see the position on Bing. I presume the road is closed from the traffic signal on the Washingborough side. My changes are here changeset/88524613, but I suspect it's best if you review them again.

Is the road 40 mph beyond the traffic light too? In Mapillary there looks to be a traffic light mounted on the light pillar just by the service road immediately after the bridge. Does this mean access from the service road is/was signal controlled?

The B1190 under the bridge is tagged access=no, but with foot, horse & bicycle all set to yes which over-rides the access=no. It presume this is intended to provide access to the temporary path. (BTW I'm not really sure that designated really has any specific meaning in the UK: sometimes it is an old way of marking a PRoW, but we dont have anything like the german usage - if a cycle path is designated cyclists have to use it not the adjacent road ).

I can now see why you noticed this, there's a lot going on.

Regards,

Jerry aka SK53

Thanks for the note, someone already edited & I have now restored the correct value. (When copying items in iD, sometimes the focus goes to the tag editor rather than the map and a different paste buffer goes into the key or tag field, but its easy to miss when mapping a single object).

Ah, sorry the position looked very odd & so I checked against Mapillary traces. As the railway line was missing bridges and pedestrian crossings I just thought it was misplaced and dinnt check if it had recently been updated. I'll change it back.

The bridge looks to be a low bridge, but I couldnt see a minimum height marker on Mapillary. I did add lanes =1.

Hi,

You may not know, but St for Saint is standard British orthography and should not be expanded. There is a little bit about it on the wiki osm.wiki/Invalid_Abbreviation_Expansion (a couple of long-term contributors are journalists - and editors - and therefore are rather well informed about it) and a rather more useful explanation on Help: https://help.openstreetmap.org/questions/19609/saint-or-st-is-there-an-official-osm-policy.

Regards,

Jerry aka SK53

Yeah, the new imagery is a bit of a game changer!

This (& your other recent changesets) is a fantastic contribution to solar mapping.

Many thanks,

Jerry aka SK53

Hi Andy,

I know it was a long time ago, but there doesn't seem to be any trace of this vineyard on aerial imagery anymore.

Jerry

I agree that would be the ideal way in which it would work, but in practice it is not. The problem with the wiki is that it is often the voice of a few contributors often with particular bees in their bonnets, rather than a true community resource. No-one has grasped the nettle. The last time I tried something along those lines with footpaths, my edit was immediately reverted. This also tends to discourage contributing to anything other than pages on very minor tags. A good recent example is someone deciding that an immensely popular way of mapping pavements should be marked as depracated.

Unfortunately what this illustrates is that much of the wiki tends to be documenting one view rather than trying to describe the consensus. It may also be seriously out-of-date text having an un-dead existence.

The tag rwn has 650 odd uses in the UK (https://taginfo.openstreetmap.org.uk/search?q=rwn#values). An excellent reference implementation using walking/cycling etc routes is Waymarked Trails (https://hiking.waymarkedtrails.org/) which not only is global, but also is created by a serious trail user. Nearly always it is better to look at concrete mapping than rely on the wiki (not least because it's often difficult to remove stuff - there are still two descriptions of footpath mapping the UK despite one of them being accepted by all serious footpath mappers including the National Trust.. In this case there are a number of national MTB trails in Switzerland (lonvia lived there for a while), so these provide examples of how things have been tagged elsewhere (route=mtb, network=ncn). A quick check shows cycle.travel does not route over the col between Safien & Uors, but down to the Rhine Valley and back up Val Lumnezia, see https://cycle.travel/map?from=safien&to=Ilanz&fromLL=&toLL=46.775575,9.2054956 (however Richard may have special logic cases for this).

Anyway, this is what I do. Look for analogous cases already mapped, check the tagging, check usage states. If it seems sensible adopt that. If one is in luck the wiki will say the same thing.

Personally I'd like the wiki to be descriptive not prescriptive, but cant see it happening.

It's really very straightforward, Norfolk Coast Path & Peddars Way are National Trails and the Suffolk Coast Path is not. Thus long distance trail mapping with nwn is analogous to Sustrans routes having ncn: they are signed trails supported by a national body. What surprised me was to see more national trails mapped in Scotland, but apparently things like the Kintyre Way (which in conception & initial implementation was a local initiative) now have this status.

On the general point it's usually not a good idea to extend general concept of a tag by adopting it for something related but which is different in significant ways. It can have the effect of effectively negating all the implicit defaults which then need to be re-established and made explicit.

New imagery makes a fantastic difference!

Either is fine. Often a point enables stuff to be done quicker and can be refined later. You can see my own (unrefined) efforts mapping shops etc in Armagh City from 3 years ago osm.org/#map=18/54.34771/-6.65228. Doing things this way enabled me to capture most of the shops from a couple of short walks, one in the evening, the other the following morning. A quick check suggests this is common elsewhere in NI too. For a shop within a shop, like pharmacies or post offices, a point is perfect.

Adding the building gives more context (particularly helpful for the post office counter in a bigger store, as they mostly are these days), but you can add a building and leave the original point marker (node). Generally I like to do larger places (supermarkets, standalone pubs, big shops, churches, GP surgeries etc. as buildings with the type of amenity directly added to the same area. A big advantage of adding as an area is that one can then see that there's nothing missing whereas with points you need to make assumptions. Buildings which are landmarks are always useful to map as areas.

For smaller shops & amenities a point is often a lot easier than trying to work out how multiple businesses have divided up a building (e.g., looking at a Geograph picture of The Square I see there's a hairdresser with a beauty salon above on the first floor).

In some places the aerial imagery is just not good enough in which case points are fine then too.

The important thing is that everything can be iteratively refined so it's not necessary to worry overmuch about it, and find what works for you.

Jerry

PS. There's an all-Ireland project for adding buildings https://tasks.openstreetmap.ie/

Many thanks for your first contribution to OpenStreetMap.

I've taken the opportunity to add Eurospar itself and mark the old location of the post office as disused.

If you have any queries I'm happy to answer them, but there's also a recently active group in Newry.

Regards,

Jerry

Hi,

I've noticed you've been adding rooftop solar panels around the Isle of Wight, and as polygons too. Great stuff.

Just thought I'd say that you can also add the tag location=roof for rooftop installations. It's not necessary, but helps data consumers, particularly if underlying buildings aren't mapped.

I presume you know the solar mapping tracking page http://osm.gregorywilliams.me.uk/solar/index.html ?

Cheers,

Jerry aka SK53

For St Peter's Church I think you should have building=church and disused:amenity=place_of_worship. name might need to go to old_name too. The building doesn't render which makes it a bit odd given it has a listed status.

Jerry aka SK53

Hi Tom,

In case you find some more, we now generally add a location=roof for roof-mounted solar panel installations (and can get more complicated counting the modules & adding orientation too).

Generally rooftop solar takeup is lower in Greater London than elsewhere, plus they're often hard to find on a lot of pre-WWI housing. Imagery quality doesnt always help either.
Across the country we're now just shy of 20% mapped cf FIT figures (probably 1 in 6 in reality). A big step from your pioneer mapping of them for BedZED.

Cheers,

Jerry

Definitely worth adding fences & hedges. I usually do, so must have run out of time when doing this (I was actually looking for plant galls as a recce for a nature walk). Not only do they help one "read" the countryside. I notice I've missed a few other things too.

Thanks for this, I cant precisely remember where I walked when I added this (I suspect up N side of Diamond Wood and thence to the car park. If I get the chance (& remember) I'll check if I have any photos of the point.

Anyway ground truth is what OSM is about & we've noticed more people making use of it during lockdown precisely because it may have more local paths.

Quite a few permissive paths do disappear after the landowner stops getting the relevant subsidy (I was out in Leics a fair bit on ones which were disappearing a couple of years ago).

Cheers,

Jerry aka SK53