OpenStreetMap

SomeoneElse has commented on the following diary entries

Post When Comment
. 6 days ago

Hi Alex, Personally, I tend to report spammers in the #osm-dev IRC channel on OTRS - see http://wiki.openstreetmap.org/wiki/IRC for details. It normally gets acted on pretty quickly. Cheers, Andy

Up-to-date open data imagery - it is available, use it! 8 days ago

Today I updated the "FAQ" wiki page http://wiki.openstreetmap.org/w/index.php?title=FAQ&type=revision&diff=1328469&oldid=1310918 with "what imagery you could use" (just changing MapQuest to Mapbox). Perhaps it would make sense to say "... and there may be other local imagery sources available for you within your editor"?

A look into a sample of edits from MAPS.ME contributors 15 days ago

@GOwin If their email in OSM is properly configured, they should see that. However if they used a throwaway email address to sign up, or one that they don't check often, then they won't. For lots of people today email isn't the default communications mechanism.

If you want to suggest an explicit check for OSM messages within MAPS.ME, then you'll need to suggest that to MAPS.ME (via github and/or email).

Personally I tend to use changeset discussion comments over PMs as they're public, and other people can see what's been commented on, but obviously that depends on working email.

A look into a sample of edits from MAPS.ME contributors 16 days ago

Thanks - it's always useful to get some actual numbers and examples to look at rather than the "truthiness"-based opinions that have been expressed so far.

The Wiki Sign-up is Broken! 16 days ago

It's a known problem unfortunately - some of the problem on this help question might be useful:

https://help.openstreetmap.org/questions/50567/wiki-accountpage-creation-error

Do Not Bother to Post a JOSM Bug-Report for a Plugin 25 days ago

My experience of logging bugs against JOSM (core) has that they tend to get dealt with pretty quickly, actually. Certainly faster than certain other maintainers... However, with plugins they're at the mercy of whoever wrote the plugin in the first place, so you can't really blame the JOSM devs here.

From memory, haven't other people had a go at "terracer" alternatives in the past? Might be worth asking on the help site or #osm to see what recommendations people have.

Weekly roundup - Suspicious mapping 30 days ago

In these cases was there any reason why you didn't mention the problem to the users concerned? Most or all look like "cockup rather than conspiracy" - just genuine user mistakes, or perhaps inexperience (either in general or with a new editor - such as the maps.me POI in the middle of the road).

Obviously it's great that "highway=yes" gets set back to the previous highway value but isn't there a risk that they'll do it again if they don't know of the mistake that you've corrected?

Best Regards, Andy

The invalid areas of the map about 1 month ago

You've said "It seems like a huge majority of the issues need to be carefully revieved by hand and cleaned up" and I think that you're absolutely right. As Mateusz Konieczny says above, even in "straightforward" cases you need to check that any resulting tagging makes any geographical sense, even if there's only one topological interpretation.

I'd also suggest that where a problem is fixed that it's explained to the person who added the erroneous data in the first place what the problem is - if they don't know that there's a problem they'll keep doing it.

I'd also suggest that any "fixing" changeset comments explain the problem in terms that a mapper that might have created the problem in the first place, so don't say things like "remove self intersection of area outline" or similar.

Maps.me is a new evil (instead of Potlatch)? about 1 month ago

"a new evil"?

The news headlines from around the world over the last couple of weeks have been pretty miserable for lots of reasons, but apparently the thing that really matters is some people mislabelling "tourist attractions" on an online map.

Does Open Street Map have an input API? or Upload feature? about 1 month ago

There's also information over at http://wiki.openstreetmap.org/wiki/Import and http://wiki.openstreetmap.org/wiki/Import/Guidelines .

Jazz club about 1 month ago

Pretty much any non-contradictory combination of tags is "valid". If that's the best way of describing a real-world object, then that's what I'd use.

Nottingham's Mysterious Plaster Boys & Girls about 1 month ago

I think they're breeding - the same ones exist at least as far north as Sutton.

As far as rendering highway=crossing nodes, it would be a relatively simple change to the "standard" style (I made the same change to a version of that style here. There's probably a github issue or three already logged for it.

Unrendered elements about 1 month ago

Years ago, there used to be a map style on OpenStreetMap.org called "osmarender" which tried to show almost every feature (but in the process didn't look very pretty). It went away for various technical / support reasons, and there hasn't been a replacement for it. Part of the reason for that is that query mechanisms have improved markedly - things like the "?" icon at the right of the main site that allow you to click and see what's there and display details such as http://www.openstreetmap.org/node/3964948498 even though it's not rendered in the "standard" map style at all.

http://taginfo.openstreetmap.org/ might also be useful - type "office" into the box at the top right of that and click through to "Overpass Turbo" zoom in and run the query - you will get a screen like http://overpass-turbo.eu/s/gOJ showing you all of the offices nearby.

With regard to actual map tiles, I do try and render lots of the office/man_made infrastructure in a style that I maintain for my own use (no public tiles alas) - see http://i.imgur.com/NCkW98m.png for an example. Sirens, Pipelines and Flagpoles I've never thought of doing though - I'm sure that everyone has a list of things that "should be rendered on a standard map style but aren't". the problem is that everyone's list is different.

Is that a country? about 2 months ago

Most "international boundaries" discussions take place over at http://forum.openstreetmap.org/viewtopic.php?id=53173 - a trawl through the history there might find some prior discussion.

Currently in OSM it's not a "country", though it has been recently:

http://osm.mapki.com/history/relation.php?id=4112727

As ever with discussing actual changes, comments on the discussion on changesets that changed the state are the best way to try and understand what's happening, such as happened with http://www.openstreetmap.org/changeset/37389042 .

Improving the OSM map - why don't we? (13) 2 months ago

@marczoutendijk It would indeed be great if there was a way to easily define your own map layers at osm.org, rather than using the 5 canned ones (but as Richard says above just wishing won't make it so; you actually need to sit down and write some code to do it).

There are a couple of cludgy ways to do that sort of thing currently - see http://wiki.openstreetmap.org/wiki/User:SomeoneElse/Your_tiles_from_osm.org for an example. Essentially if you can figure out a way of converting something like http://a.tile.openstreetmap.org/7/58/53.png into http://korona.geog.uni-heidelberg.de/tiles/roads/x=58&y=53&z=7 you should be able to replace one set of tiles with another (terms of use etc. notwithstanding).

Linting the open map of the world 3 months ago

I think your "pipeline" isn't quite complete...

What happens next is that on-the-ground mappers familiar with an area spot a remote edit, and go and check it. Sometimes the correction is valid, but often the "error" being corrected wasn't actually an error at all - perhaps it was a bit of an edge case, like https://www.openstreetmap.org/way/53054452/history , where any OSM tagging would be a bit of a compromise.

In areas where there is a reasonable concentration of mappers, and it's really not clear how things really are, it's better to try and ask people to check the real situation rather than guessing, and the best way to do that is either a changeset discussion comment on a previous editing changeset or an OSM note.

It's important to remember that OSM isn't just data - it's a representation of things in the real world, and the real world is sometimes shades of grey rather than black and white.

Trees (again) 3 months ago

@BushmanK Interesting - I've often added details conveying that sort of information as part of a note (see e.g. http://www.openstreetmap.org/way/343924077 ) - maybe "wood:age" et al is worth looking at.

Validating the map - Part 1 4 months ago

As well as "detecting problems" we also need to ask why a problematic edit was made.

For example, "doodle the dog" in the example above - was that drawn by a bored college student who'd been dragged into a HOT mapping session against their will? If so, perhaps we could try and engage with the person running the class?

MAPS.ME is now an editor 4 months ago

We're seeing a definite spike in new editors near me in the UK, compared to (say) 6 days ago:

http://resultmaps.neis-one.org/newestosm?c=United%20Kingdom#8/52.955/-0.654

What's really interesting is that there's actually roughly twice as many new mappers using iD as last week, not even counting the new MAPS.ME ones! It'd be interesting to see how widespread that is.

Mapping missing motorway exit numbers 4 months ago

On countries that don't use junction reference numbers as much as some others (like the US), I wouldn't expect too much from a query looking for junction reference numbers; just the same as in the UK (where there aren't multiplexed routes) I wouldn't expect to be able to extract sensible and complete route relations.

Just because the wiki says to do something it doesn't mean it's commonly done or even a good idea; sometimes it represents only the view of the person who last updated that wiki page.

In the US I'd spend time on misaligned and mismapped TIGER data before even thinking about whether a nonexistant junction reference number is indicated by "noref=yes" :)