<div dir="ltr">cross-posting as FYI!<div><br></div><div>(good post!)</div><div><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Richard Welty</b> <span dir="ltr"><<a href="mailto:rwelty@averillpark.net">rwelty@averillpark.net</a>></span><br>Date: Mon, May 4, 2015 at 6:06 AM<br>Subject: [Talk-us] moving data from OSM to OHM - what should the markers be?<br>To: Talk Openstreetmap <<a href="mailto:talk-us@openstreetmap.org">talk-us@openstreetmap.org</a>><br><br><br>there was a message a couple of weeks ago that i meant to respond<br>
to but now i can't find it; the gist of it was that it posed some useful<br>
questions that might be asked in the specific case of when a racing<br>
surface should be moved from OSM to OHM. similar questions might<br>
be applied for any other entity that is a candidate to be moved; i'm<br>
posing this for discussion right now as it rather directly applies to<br>
issues that are in front of me as i move forward mapping active,<br>
inactive and defunct racing sites in OSM & OHM. there is also the<br>
question of what do with partial racing surfaces, no longer usable<br>
for racing that still have significant physical traces.<br>
<br>
i'll start with the last one first. One of the most famous former race<br>
tracks of them all is Brooklands in Weybridge, Surry in the UK. the<br>
circuit ceased operations at the start of WWII, and after the war it<br>
was judged to be too expensive to try to bring it back.<br>
<br>
the physical remnants of the Brooklands oval are in OSM, tagged<br>
highway=raceway (but the existing remnants of the road course are<br>
not present). i have mostly mapped the original Brooklands oval<br>
and road course in OHM but one road course segment is missing<br>
as i have yet to find a decent reference on its location (existing maps<br>
seem slightly speculative to me.) here is a view which overlays OHM<br>
on OSM (use the slider to adjust the opacity of the OHM raster image).<br>
<br>
<a href="http://www.na-motorsports.com/test/Brooklands.html" target="_blank">http://www.na-motorsports.com/test/Brooklands.html</a><br>
<br>
so the question here really is how should the remnants be tagged?<br>
(for practical reasons i think the entire historic course belongs in<br>
OHM.)<br>
<br>
one commonly expressed idea is that things should be in OSM as long<br>
as there are physically identifiable remnants. but should other (non<br>
geospatial) information be a factor in this decision? i have a number<br>
of examples from recent mapping work:<br>
<br>
Second Creek/Rocky Mountain National/Mile High Dragway<br>
<br>
this is a complex just west of the Denver Airport. originally it was<br>
just the dragway, which shut down for safety reasons (insufficient<br>
shutdown area at the end of the strip.) subsequently, Rocky Mountain<br>
National Speedway was built on top of the north end of the dragstrip,<br>
and Second Creek Raceway was built to the south, reusing part of<br>
the drag strip as a straightaway.<br>
<br>
everything shut down in 2005; the land was sold for development.<br>
The oval and road course are just sitting there, but the bulldozer is<br>
probably not too far off. traces of the drag strip are still visible. Eric<br>
Wolf entered Second Creek into OHM and i added the dragstrip and<br>
oval; i believe this choice (OHM vs OSM) was probably correct given<br>
that there is no hope that these facilities will ever be used again.<br>
here's a link:<br>
<br>
<a href="http://www.na-motorsports.com/test/test4.html" target="_blank">http://www.na-motorsports.com/test/test4.html</a><br>
<br>
(note that the opening date for Second Creek is currently incorrect;<br>
a correction has been made in OHM but it hasn't trickled out into<br>
the OHM deployment of Overpass just yet.)<br>
so, here's a case where there is ample physical evidence, but also knowledge<br>
that the facilities will never, be used again.<br>
<br>
and a couple more physical evidence cases that put a very fine point<br>
on it, i think:<br>
<br>
Motor City Dragway:<br>
<a href="https://www.openstreetmap.org/#map=16/42.7182/-82.6775&layers=N" target="_blank">https://www.openstreetmap.org/#map=16/42.7182/-82.6775&layers=N</a><br>
Motion Raceway:<br>
<a href="https://www.openstreetmap.org/#map=16/39.5639/-89.0512&layers=N" target="_blank">https://www.openstreetmap.org/#map=16/39.5639/-89.0512&layers=N</a><br>
Bee Line Dragway:<br>
<a href="http://www.openhistoricalmap.org/#map=16/33.5081/-111.7604&layers=H" target="_blank">http://www.openhistoricalmap.org/#map=16/33.5081/-111.7604&layers=H</a><br>
<br>
note that i haven't been entirely consist here, but i'm looking for input on<br>
these questions.<br>
<br>
All three of these tracks are inactive and have been for some time.<br>
physically<br>
they are pretty similar, abandoned & deteriorating strips of pavement. some<br>
buildings apparently survive at Bee Line, otherwise all standing structures<br>
have disappeared. as for the chances of revival...<br>
<br>
Motor City Dragway was shut down due to town noise ordinances. it will<br>
not return<br>
to operation. maybe it should move to OHM because of that.<br>
Motion Dragway was shutdown due to liability concerns. there have been<br>
attempts<br>
to revive it but the property owners have not yet been shown a liability<br>
policy that<br>
satisfies their concerns.<br>
Bee Line Dragway was shut down by the property owners (the Salt River<br>
Pima/Maricopa<br>
Indian Community) over liability concerns; they have expressed no<br>
interest in returning<br>
it to operation.<br>
<br>
so which go into OHM and which go into OSM? or should there be a dual<br>
existence,<br>
minimal in OSM and fully documented in OHM?<br>
<span class="HOEnZb"><font color="#888888"><br>
richard<br>
<br>
--<br>
<a href="mailto:rwelty@averillpark.net">rwelty@averillpark.net</a><br>
Averill Park Networking - GIS & IT Consulting<br>
OpenStreetMap - PostgreSQL - Linux<br>
Java - Web Applications - Search<br>
<br>
<br>
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<br></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><font size="1">Jeff Meyer<br>Global World History Atlas<br><a href="http://www.gwhat.org" target="_blank">www.gwhat.org</a><br><a href="mailto:jeff@gwhat.org" target="_blank">jeff@gwhat.org</a><br>206-676-2347</font><div><font size="1"><br></font></div><div><span style="font-size:x-small">OpenStreetMap: Mapping with a Human Touch</span><font size="1"><br></font><div><span style="font-size:x-small">osm: <a href="http://wiki.openstreetmap.org/wiki/Open_Historical_Map" target="_blank">Open Historical Map (OHM)</a> / <a href="http://www.openstreetmap.org/user/jeffmeyer" target="_blank">my OSM user page</a></span></div><div><font size="1">t: <a href="https://twitter.com/GWHAThistory" target="_blank">@GWHAThistory</a> / @OpenHistMap </font></div><div></div><div><font size="1">f: <a href="https://www.facebook.com/GWHAThistory" target="_blank">GWHAThistory</a></font></div><div><br></div><div><font size="1"><br></font><br></div></div></div></div></div></div>
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