Many are very simple, St instead of Street, doesn't sound much but it stops some search and other tools. Multiple imports each with different defaults, some forgot the street name, many didn't import where an existing street was, OK but combine that with up to 200 meters out probably drawn in from a satellite and you end up with lots of holes in the maps and streets that should be joined not joined. Cross overs not linked. Sections of street without a street name. Streets incorrectly linked together and incorrectly named. Leisure=Park not Leisure=park, use of tags that are not part of the feature set on http://wiki.openstreetmap.org/wiki/Map_Features where a suitable tag is available.
There aren't a lot of on the ground mappers in Ottawa and data quality has been an issue. There are religious problems as well, such as should we just replace all the existing roads with CANVEC data? I've seen a couple of roads that aren't in CANVEC so far but the CANVEC data quality is very good. Cheerio John On 31 July 2010 12:46, Tobias Knerr <o...@tobias-knerr.de> wrote: > john whelan wrote: >> Currently I'm cleaning up in Ottawa, I have over 8,000 errors to clean >> up left and recently I've probably cleaned at least a couple of >> thousand errors so far. Things like incorrect street names, where I >> have a CANVEC source that helps enormously, connecting streets up so >> you can run routing software. etc. >> >> Are you seriously suggesting for each correction I do a write up >> saying why I or Validator think its wrong and my source for the >> correction? > > Usually, corrections can be grouped - for example, by fixing all the > incorrectly joined junctions in an area first, then uploading with an > appropriate changeset comment. > > That's a lot of errors, by the way. Have those errors been created by > humans or by some import? Everything I modify was manually created by a > human being, so it's a reasonable assumption that someone will be > interested in my reasons for changing their work. They might even learn > something from it and don't repeat the same mistakes in the future, thus > I might actually be saving time that I would otherwise have spent on > fixing those future errors. > > The situation could be somewhat different when fixing import errors, > which is something I'm not familiar with. > > Tobias Knerr > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk > _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
