Hi, "roads outside of the main urban areas are not well mapped, having errors where roads not properly joined up" - I'm not sure if I concur.
Most days, I use the 'Routing' layer on http://tools.geofabrik.de/osmi/ to check for broken connections. I prioritise major roads and the closer broken connections. Many of the others are where there are highway=corridor. In general, the situation in Ireland is much better than it is elsewhere in Western Europe (the number of broken connections appears to be somewhat correlated with population density / level of human activity). There are roads that were mapped before we had access to aerial photos that are a bit on the 'rough' side, but generally those roads are within 10 metres of where they should be. Given that aerial photos and GPS devices often have offset issues, I think that is a reasonable margin of error. Number of lanes, surface, etc will of course be lacking on many roads. There are two main categories of missing roads - housing estates and farm access roads. I map all over the country and I find very few through roads that aren't mapped. Other than the likes of Lauravale: https://www.openstreetmap.org/node/668051865#map=16/54.3696/-6.4484 there are very few urban locations with serious mappings issues regarding roads. This map points to some other under-mapped locations: http://resultmaps.neis-one.org/unmapped#5/54.940/-7.559 Is there any tool that measures the km of each type of road in an area? This could be compared with the data that councils publish (there are about 9,000 housing estate that won't show in these numbers). ---------------------------------- If looking for things to map / fix, how about targeting local notes, fixme=* and FIXME=*? Colm ________________________________ Message: 2 Date: Fri, 30 Nov 2018 15:47:40 +0000 From: Tadeusz Cantwell <t4d...@gmail.com> To: Discussion of OpenStreetMap in Ireland <talk-ie@openstreetmap.org> Subject: [OSM-talk-ie] Mapping project Message-ID: <CAHJTHub4NKaxNVL6LyZAV3fm05WiFi6E-939ONH7s=dkaxe...@mail.gmail.com> Content-Type: text/plain; charset="UTF-8" Now that townlands are mostly done, it would be nice to have a new project to focus on. A piece of feedback that came out during the launch was that roads outside of the main urban areas are not well mapped, having errors where roads not properly joined up, as one example. One way to tackle this is set up a project on Maproulette to help triage those small errors. A set of criteria can be entered into it, which generates a task for everything that falls within it. If you have any pet peeves in the state of our 'virtual' roads, fire away. Sorry, we can't fix that pothole! Tadeusz _______________________________________________ Talk-ie mailing list Talk-ie@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-ie
