<div dir="ltr"><div dir="ltr">On Sat, Jan 2, 2021 at 1:28 PM Richard Fairhurst <<a href="mailto:richard@systemed.net">richard@systemed.net</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div dir="auto">Kevin Kenny wrote:
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<div dir="auto">> disused - track still present, could be put back into service </div>
<div dir="auto">> with minimal work (vegetation clearance, track inspection, ...)</div>
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<div dir="auto">> abandoned - track still present, deteriorated, would need </div>
<div dir="auto">> construction work (repairing washouts//slides, realigning </div>
<div dir="auto">> track, removing trees, ...) before being placed in service</div>
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<div dir="auto">> razed - rails lifted or buried [1], sleepers and ballast may </div>
<div dir="auto">> remain, traces on the ground such as embankments, </div>
<div dir="auto">> cuttings and drainage features observable OR track visible </div>
<div dir="auto">> in obsolete imagery and way included to prevent re-</div>
<div dir="auto">> addition of a demolished feature.</div>
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<div dir="auto">That isn't how the tags are customarily used.</div>
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<div dir="auto">In OSM to date, the majority usage is</div>
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<div dir="auto"><span> </span><span> </span>disused = tracks still down</div>
<div dir="auto"><span> </span><span> </span>abandoned = no tracks but <span>clear traces remain</span></div>
<div dir="auto"><span> dismantled (or razed) = no clear traces</span></div>
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<div dir="auto"><span>This has been the case since OSM year dot and was strongly influenced by the terminology traditionally used in the UK. dismantled/razed is a newer tag.</span></div>
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<div dir="auto">Obviously individual mappers have their own preferences, but in many years of editing features adjacent to disused railways, I'd say the "disused=tracks, abandoned=no tracks" rule is followed in 90-something% of cases.</div>
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<div dir="auto">(dismantled/razed - the tags are synonymous - is something I find useful where a railway bridge deck has been removed, typically over a river or road, but the pillars or abutments are still standing.)</div></div></div></div></div></blockquote><div><br></div><div>Ok, so 'disused' might be grown to trees as long as nobody bothered to pull up the rails, and 'abandoned' is everything that's visible on the ground, with 'dismantled/razed' reserved only for the case you mentioned (missing bridge) or for the case where no traces exist on the ground but obsolete aerials might still show something? </div><div><br></div><div>(I guess there may be subjectivity as to what are 'clear' traces. Some eyes see more than others.) </div></div><div><br></div>-- <br><div dir="ltr" class="gmail_signature">73 de ke9tv/2, Kevin</div></div>