<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px">We can take care of this once the job is completed. It is easy with the Ovepass query service to extract all [landuse=residential] and fix this, deciding how to group some of the smaller areas.<br><div id="yui_3_16_0_1_1416753439975_6680"> </div><div id="yui_3_16_0_1_1416753439975_6678" class="signature"><span id="yui_3_16_0_1_1416753439975_6679" style="font-style:italic;color:rgb(0, 0, 191);font-weight:bold;">Pierre <br></span></div><br> <div id="yui_3_16_0_1_1416753439975_6616" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;"> <div id="yui_3_16_0_1_1416753439975_6615" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1416753439975_6674" dir="ltr"> <hr size="1"> <font id="yui_3_16_0_1_1416753439975_6675" face="Arial" size="2"> <b><span style="font-weight:bold;">De :</span></b> althio forum <althio.forum@gmail.com><br> <b><span style="font-weight: bold;">À :</span></b> HOT Openstreetmap <hot@openstreetmap.org> <br> <b id="yui_3_16_0_1_1416753439975_6677"><span id="yui_3_16_0_1_1416753439975_6676" style="font-weight: bold;">Envoyé le :</span></b> Dimanche 23 novembre 2014 9h48<br> <b><span style="font-weight: bold;">Objet :</span></b> Re: [HOT] [Tag] landuse=residential in rural and urban areas<br> </font> </div> <div id="yui_3_16_0_1_1416753439975_6614" class="y_msg_container"><br>Following the discussion in [HOT] [Tag] #767 - Mali, Bamako<br clear="none">and merging some points here in [HOT] [Tag] landuse=residential in<br clear="none">rural and urban areas<br clear="none"><br clear="none">Pierre Béland <<a id="yui_3_16_0_1_1416753439975_6683" shape="rect" ymailto="mailto:pierzenh@yahoo.fr" href="mailto:pierzenh@yahoo.fr">pierzenh@yahoo.fr</a>> wrote:<br clear="none">> In urban areas, we shoud simply have a large polygon<br clear="none">> around the urban area and not cut at each street.<br clear="none">I have seen also that the instructions were updated with "In Bamako,<br clear="none">do not trace small polygons for each section of houses between<br clear="none">streets. A large polygon [covers] the city."<br clear="none">A few comments:<br clear="none">* I think this is a good addition, thank you.<br clear="none">* Minor edit: I guess 's' is missing in cover[s].<br clear="none">* Minor trouble: I could not find the one large polygon that covers the city.<br clear="none"><br clear="none">What do we do now with the existing smallish landuse=residential<br clear="none">inside Bamako? Do we leave them? Do we remove them while mapping or<br clear="none">reviewing or do we wait after next-level validation?<br clear="none"><br clear="none">Tom Taylor <<a shape="rect" ymailto="mailto:tom.taylor.stds@gmail.com" href="mailto:tom.taylor.stds@gmail.com">tom.taylor.stds@gmail.com</a>> wrote:<br clear="none">> My own practice for large urban areas (last experience was a Canadian city<br clear="none">> rather than a HOT task) is to carve them up into multiple<br clear="none">> landuse=residential areas, bounding them on roads or other landuse types.<br clear="none">Tom, thank you for your insight, I can see even in Bamako that other<br clear="none">people follow your practice. It can be very nicely done but I find it<br clear="none">hard to get homogeneous mapping and according to the following<br clear="none">statement it seems like extra work but not immediately useful:<br clear="none">Pierre Béland <<a shape="rect" ymailto="mailto:pierzenh@yahoo.fr" href="mailto:pierzenh@yahoo.fr">pierzenh@yahoo.fr</a>> wrote:<br clear="none">> If you trace a large residential polygon,<br clear="none">> and inside it small polygons for schools, hospitals or any other landuse,<br clear="none">> you do not need to cut everything.<br clear="none">> The Map Renderers should know how to interpret this.<br clear="none"><br clear="none">althio<br clear="none"><br clear="none">althio wrote:<br clear="none">><br clear="none">> My previous message leads me to a more generic question.<br clear="none">><br clear="none">> In <a shape="rect" href="http://tasks.hotosm.org/project/767" target="_blank">http://tasks.hotosm.org/project/767 </a>and maybe some other project,<br clear="none">> the instructions reads:<br clear="none">> "Settlements:<br clear="none">> Trace polygon around clusters of houses. Tag with landuse=residential"<br clear="none">><br clear="none">> I feel these instructions are related to rural areas. They can be<br clear="none">> misunderstood in the context of urban areas. In this project we are<br clear="none">> also mapping inside Bamako, very urban and very dense.<br clear="none">><br clear="none">> What about urban areas? What is the good pratice, the recommended size<br clear="none">> for landuse=residential in Bamako and other African big cities?<br clear="none">> * Only one huge outline landuse=residential around the whole city<br clear="none">> * By neighborhoods?<br clear="none">> * Cut by main roads (arteries of the city)<br clear="none">> * Block by block<br clear="none">><br clear="none">> As I map and review I see almost every case.<br clear="none">><br clear="none">> Has this been discussed or documented already?<br clear="none">><br clear="none">> althio<div class="qtdSeparateBR"><br><br></div><div class="yqt7844883145" id="yqtfd03837"><br clear="none"><br clear="none">_______________________________________________<br clear="none">HOT mailing list<br clear="none"><a shape="rect" ymailto="mailto:HOT@openstreetmap.org" href="mailto:HOT@openstreetmap.org">HOT@openstreetmap.org</a><br clear="none"><a shape="rect" href="https://lists.openstreetmap.org/listinfo/hot" target="_blank">https://lists.openstreetmap.org/listinfo/hot</a><br clear="none"></div><br><br></div> </div> </div> </div></body></html>