<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="">Hi Martin,</div><div class=""><br class=""></div><div class="">Thanks for the response.</div><div class=""><br class=""></div><div class=""><b class="">1. <span class="">Whether the building is permanent or not.</span></b></div><div class=""><b class=""><span class=""><br class=""></span></b></div><div class=""><blockquote type="cite" class=""><div dir="auto" class="">what are your definitions for semipermanent and non-permanent?</div></blockquote><br class=""></div><div class="">So non-permanent is a building structure constructed for a defined short period of time. Like Circus tent for example. It stays there for a defined 1 month. </div><div class="">I can also imagine temporary warehouses / tents during the harvest period at countryside-marketplaces or movable markets, though I cannot really give a good real-life example.</div><div class="">Something like this: <a href="https://goo.gl/images/nMf3gQ" class="">https://goo.gl/images/nMf3gQ</a></div><div class=""><br class=""></div><div class="">Semi-permanent are constructions that are technically non-permanent but stay there for an indefinite amount of time. Something like we have a trailer house that just stays there and it’s not intended to be moved anytime in future.</div><div class=""><br class=""></div><div class="">This differentiation is confusing however it is important to make this differentiation - semi-permanent buildings usually have a stronger strategic value then non-permanent. In case of evacuation - non-permanent structures can be easily deconstructed or abandoned, but semi-permanent might not. And the inhabitants might be less resistant to get evacuated if they inhabit semi-permenent structure comparing to permanent building. </div><div class=""><br class=""></div><div class="">2. <b class="">Whether the building is permanent or not.</b></div><div class=""><br class=""></div><div class="">So do you think it a good idea to map existence of basement of the building by <b class="">building_levels:underground = yes</b></div><div class=""><b class=""><br class=""></b></div><div class=""><b class="">3. Shape of the building</b></div><div class=""><b class=""><br class=""></b></div><div class=""><blockquote type="cite" class=""><div dir="auto" class=""><div class="">we map the shape (maximum of all horizontal sections of all levels) in geometry (way)</div></div></blockquote><br class=""></div><div class="">We need this for statistic purposes. To make it human-readable, the proposal was to have values like {box, rectangular, t-shaped, l-shaped}. </div><div class="">Ideally a classifier can be trained to derive these values from raw way geometry, but we still need to come up with reasonable common building shapes that are acceptable to be included in OSM data. </div><div class="">Any suggestions?</div><div class=""><br class=""></div><div class="">4. <b class="">Slope of the site where building is located.</b></div><div class=""><b class=""><br class=""></b></div><div class=""><b class=""><blockquote type="cite" style="font-weight: normal;" class=""><div dir="auto" class=""><div class="">we don't map it. Where would you attach this tag to?</div></div></blockquote><br class=""></b></div><div class="">Attached to building. The damage form disasters like flood will be highly-related to this surface slope.</div><div class=""><br class=""></div><div class="">Again thanks a lot for your feedback.</div><div class=""><br class=""></div><div class="">Best,</div><div class="">Taras.</div><br class=""><div><blockquote type="cite" class=""><div class="">On 27 Jul 2017, at 1:34 PM, Martin Koppenhoefer <<a href="mailto:dieterdreist@gmail.com" class="">dieterdreist@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="content-type" content="text/html; charset=utf-8" class=""><div dir="auto" class=""><div class=""><br class=""><br class="">sent from a phone</div><div class=""><br class="">On 27. Jul 2017, at 07:14, Vozniuk Taras <<a href="mailto:taras.vozniuk@geothings.tw" class="">taras.vozniuk@geothings.tw</a>> wrote:<br class=""><br class=""></div><blockquote type="cite" class=""><div class=""><div class=""><b class="">1. Whether the building is permanent or not.</b></div><div class="">Users select from the following preset <i class="">{permanent, semi-permanent, non-permanent} . </i>Cannot really find an appropriate tag for this.</div><div class=""><br class=""></div></div></blockquote><div class=""><br class=""></div><div class=""><br class=""></div><span id="x-apple-selection:end"></span>what are your definitions for semipermanent and non-permanent?<div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><blockquote type="cite" class=""><div class=""><div class=""><b class="">2. If building contains a basement.</b></div><div class="">Should we use <b class="">basement=</b>{yes, no}, or <b class="">building:basement=</b>{yes, no}</div></div></blockquote><div class=""><br class=""></div><div class=""><br class=""></div>the established tags are quantifying the number of levels:</div><div class=""><br class=""></div><div class="">building_levels={overground levels}</div><div class="">building_levels:underground=*</div><div class="">...:roof=*</div><div class=""><br class=""></div><div class=""><br class=""><blockquote type="cite" class=""><div class=""><div class=""><u class=""><br class=""></u></div><div class=""><b class="">3. Shape of the building.</b></div><div class="">We need to tag the shape of building polygon. Possible selection from <i class="">{t-shaped, l-shaped, multi-projected, box, rectangular}. </i></div><div class="">I have’t found any information regarding tagging building shape, I guess it is not a common practice, right? We need to know the shape of the building that affects the resistance of the structure to natural disasters like earthquake or flood.</div><div class="">Any recommendations for the appropriate tag and selection here?</div></div></blockquote><div class=""><br class=""></div><div class=""><br class=""></div>we map the shape (maximum of all horizontal sections of all levels) in geometry (way), and if needed also the shape of parts (building:part=*). There's also a tag roof:shape</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><blockquote type="cite" class=""><div class=""><div class=""><br class=""></div><div class=""><b class="">4. Slope of the site where building is located.</b></div><div class="">Selection from<i class=""> {flat, moderate, steep}. </i>Can we use <b class="">incline </b><span class="">tag f</span>or this?</div><div class=""></div></div></blockquote><br class=""></div><div class=""><br class=""></div><div class="">we don't map it. Where would you attach this tag to?</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">cheers,</div><div class="">Martin </div></div>_______________________________________________<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>