<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">I was thinking of just.. Um.. drawing an area of the building, with levels=x, layer=1, then drawing the parking lot on top of it (it usually is a bit smaller and less than 100% of the top, elevators and AC and all), and then tagging the parking with Amenity=parking & parking=rooftop / layer=2</div><div class=""><br class=""></div><div class="">Here’s the place I’m tracing/aligning now in OSM. <a href="https://www.google.com/maps/@36.3557609,139.1296344,438m/data=!3m1!1e3" class="">https://www.google.com/maps/@36.3557609,139.1296344,438m/data=!3m1!1e3</a></div><div class=""><br class=""></div><div class="">Here’s my local shopping mart. <a href="https://www.google.com/maps/@36.4191102,139.2343137,109m/data=!3m1!1e3" class="">https://www.google.com/maps/@36.4191102,139.2343137,109m/data=!3m1!1e3</a></div><div class=""><br class=""></div><div class="">Both are parking only on the roof.  I was just thinking that having them render differently would be necessary, and since they are different than other parking, they might need a new tag</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">J</div><br class=""><div><blockquote type="cite" class=""><div class="">On Nov 11, 2014, at 7:09 PM, Holger Jeromin <<a href="mailto:mailgmane@katur.de" class="">mailgmane@katur.de</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">Martin Koppenhoefer wrote on 11.11.2014 11:01:<br class=""><br class=""><blockquote type="cite" class="">2014-11-11 10:56 GMT+01:00 Holger Jeromin<br class=""><<a href="mailto:mailgmane@katur.de" class="">mailgmane@katur.de</a><br class="">    I would suggest two overlapping ways:<br class="">    building=yes<br class="">    amenity=parking<br class="">    parking=multi-story<br class="">    building:levels=5<br class="">    building:min_levels=2<br class="">    layer=1<br class=""><br class="">    and<br class="">    building=retail<br class="">    building:levels=2<br class="">    shop=department_store<br class="">Me similarily, but would propose to use a multipolygon relation instead.<br class="">That's why they are there, overlapping ways are hard to maintain and<br class="">more difficult to spot.<br class=""></blockquote><br class="">Instead?<br class=""><br class="">Adding a relation to the two overlapping ways seems not making it<br class="">easier. The building (parts?) have the same outline, so they have to<br class="">overlap in the first place.<br class=""><br class="">-- <br class="">regards<br class="">Holger<br class=""><br class=""><br class="">_______________________________________________<br class="">Tagging mailing list<br class=""><a href="mailto:Tagging@openstreetmap.org" class="">Tagging@openstreetmap.org</a><br class="">https://lists.openstreetmap.org/listinfo/tagging<br class=""></div></blockquote></div><br class=""></body></html>