On Thu, 4 Jan 2018 11:04:57 +0100 Martin Koppenhoefer <[email protected]> wrote:
> sent from a phone > > > On 3. Jan 2018, at 23:06, Warin <[email protected]> wrote: > > > > I have moved some disused:railway=* from OSM to OHM as railway=* > > with start and end dates .. that records what was there then, not > > its present state ... > > > disused:railway is about something that is there (a disused railway > element like tracks or a station), abandoned:railway is also about > disused railways, but in a state of degradation (e.g. trees growing > between the tracks). razed railways would typically not be mapped in > osm, as they are no longer there. IIRR there is also the proposed > concept of dismantled railways where the tracks are removed but it is > still perceivable as former railway (e.g. embankments and tunnels, > bridges). While disused and abandoned are states that are not > disputed for inserting in osm (afaik), dismantled and razed are. > Personally I’d accept dismantled railways as long as there is > something, even if it requires additional knowledge or experience to > understand that what you see is a former railway. Where do you draw the line between "there" and "not there" for a former railroad? 1. A railroad, still with tracks, with grass growing between the rails. You can't tell if it's been used recently or not. 2. A railroad, still with tracks, that's been overgrown by brush and small trees. It clearly hasn't been used in the past few years. 3. A gravel railbed with occasional maintenance debris (discarded spikes, cracked signal footings, rotted ties). 4. A railroad right-of-way that has had the ballast removed and replaced by asphalt, turning it into a bicycle route. 5. A cutting through a rock outcropping leading to a collapsed tunnel. Any residual ballast has been buried by wind-blown dirt and overgrown by trees. 6. A curved line stretching two miles through a city without a single building crossing it. 7. A railroad whose only remnant is a line on a topographic map dating from 1901. -- Mark _______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
