Re: [OSM-talk] Out of Service Roads
On Fri, Mar 29, 2013 at 12:51:43AM +, Jaakko Helleranta.com wrote: > In Haiti we've usually taken a pretty clear map-it-as-it-is-on-the-ground > approach. > * storm wipes out a bridge -- the bridge is deleted until a new is built. > * a road is damaged so severly that you can only walk it -- it's a path until > fixed > * a slightly minor damage to the road requires a 4x4 or tractor to drive it > -- it's probably downgraded to a track 'till fixed. > > As always, one has to think if the damage (=change in the map) is long-term > enough to justify mapping it vs. How severe the damage (/change) is / how > significantly it impacts map (/data) usage, etc. Define long-term. When you look into cat manufacturer supplied satnav systems people drive around with 4-5 year old maps - which are still perfectly okay. If we start tagged ultra-short-term problems the maps cant be put into offline systems like in-dash satnavs. Flo -- Florian Lohoff f...@zz.de signature.asc Description: Digital signature ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Out of Service Roads
2013/3/30 Florian Lohoff > Define long-term. > > I think you can't define this on a global level, it depends heavily on the local activity whether it makes sense to enter a mid-term interruption into OSM or ignore it. > When you look into cat manufacturer supplied satnav systems people drive > around with 4-5 year old maps - which are still perfectly okay. > > With OSM-data I wouldn't expect someone to use 4 or 5 year old data on the other hand ;-) > If we start tagged ultra-short-term problems the maps cant be put into > offline systems like in-dash satnavs. > offline systems without updating possibility will always have the problems you get with a single snapshot (e.g. errors introduced by novice mappers or for other reasons and corrected shortly after, e.g. recently we had such a case in the Italian motorway system which caused a deviation for everyone using this motorway (one of two for North-South-connections, so roughly half the long-range traffic). I think we should discourage people from mapping the current state just because it might change in a few months and people using old data and not updating it would have problems, instead I believe that real time data will get even more important than it is already now. cheers, Martin ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Out of Service Roads
Martin Koppenhoefer writes: > 2013/3/30 Florian Lohoff > >> Define long-term. > > I think you can't define this on a global level, it depends heavily on the > local activity whether it makes sense to enter a mid-term interruption into > OSM or ignore it. Agreed that it's tricky, but for right now, I'd say a week is short enough to let something be, and a year is too long. The tricky part is From 2 weeks to 3 months. (That's a US-centric view.) pgpJCwq_g1P4v.pgp Description: PGP signature ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Out of Service Roads
On Sat, Mar 30, 2013 at 01:00:54PM +0100, Martin Koppenhoefer wrote: > 2013/3/30 Florian Lohoff > > > Define long-term. > > I think you can't define this on a global level, it depends heavily on the > local activity whether it makes sense to enter a mid-term interruption into > OSM or ignore it. > > > When you look into cat manufacturer supplied satnav systems people drive > > around with 4-5 year old maps - which are still perfectly okay. > > With OSM-data I wouldn't expect someone to use 4 or 5 year old data on the > other hand ;-) > > > If we start tagged ultra-short-term problems the maps cant be put into > > offline systems like in-dash satnavs. > > offline systems without updating possibility will always have the problems > you get with a single snapshot (e.g. errors introduced by novice mappers or > for other reasons and corrected shortly after, e.g. recently we had such a > case in the Italian motorway system which caused a deviation for everyone > using this motorway (one of two for North-South-connections, so roughly > half the long-range traffic). I think we should discourage people from > mapping the current state just because it might change in a few months and > people using old data and not updating it would have problems, instead I > believe that real time data will get even more important than it is already > now. Realtime might be possible in Europe - We have huge areas in the World where realtime is simply impossible due to missing IP infrastructure. And mapping a disruption/destroyed infrastructure is not only a matter of mapping resources but also whether the data is still usable. If there is a local divert - dont delete the bridge if their will be a new one within e.g. 6 Months. The map data with the bridge intact are still usable and fine. Flo -- Florian Lohoff f...@zz.de signature.asc Description: Digital signature ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
Re: [OSM-talk] Out of Service Roads
On Sat, Mar 30, 2013 at 08:45:55AM -0400, Greg Troxel wrote: > > Martin Koppenhoefer writes: > > I think you can't define this on a global level, it depends heavily on the > > local activity whether it makes sense to enter a mid-term interruption into > > OSM or ignore it. > > Agreed that it's tricky, but for right now, I'd say a week is short > enough to let something be, and a year is too long. The tricky part is > From 2 weeks to 3 months. (That's a US-centric view.) Its not that complicated IMHO - If the data is still useful with the fault not beeing mapped - and rebuilding the infrastructure is going to happen - let it untouched. If people will need a 300km divert to get over the river, and the bridge will not be replaced due to economic reasons its a different thing. Flo -- Florian Lohoff f...@zz.de signature.asc Description: Digital signature ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
[OSM-talk] OSM Monster
OSM data turned into a monster! http://vimeo.com/62468031 -- Martijn van Exel ___ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
