<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1501710884731_479090">Mbranco</div><div id="yui_3_16_0_ym19_1_1501710884731_478889"><br></div><div id="yui_3_16_0_ym19_1_1501710884731_479009" dir="ltr">This is not a simple, Let's connect road solution.</div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_479446"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_479445">This area is surrounded by main roads and it is quite difficult to interpret imagery in this semi-desertic area. There are probably not many vehicule traffic accessing these hamlets from the main roads. <br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_479597"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_479540">For the remote mappers, it is quite difficult to interpret all the traces in the sand and it looks like far too many ways were added indicated as roads and too many connections in all directions.<br></div><div id="yui_3_16_0_ym19_1_1501710884731_479181"><br></div><div id="yui_3_16_0_ym19_1_1501710884731_479106" dir="ltr">The responsible of this Task manager task should assure that experienced contributors revise this. Plus somebody from the field should look at this.</div><div id="yui_3_16_0_ym19_1_1501710884731_479008"><br></div><div class="signature" id="yui_3_16_0_ym19_1_1501710884731_478625"><span style="font-style:italic;color:rgb(0, 0, 191);font-weight:bold;" id="yui_3_16_0_ym19_1_1501710884731_478638"> <br><font id="yui_3_16_0_ym19_1_1501710884731_478637" face="garamond, new york, times, serif">Pierre </font><br></span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1501710884731_478624"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1501710884731_478633" style="display: block;"> <div style="font-family: verdana, helvetica, sans-serif; font-size: 13px;" id="yui_3_16_0_ym19_1_1501710884731_478632"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, linéale; font-size: 16px;" id="yui_3_16_0_ym19_1_1501710884731_478631"> <div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478630"> <font id="yui_3_16_0_ym19_1_1501710884731_478641" face="Arial" size="2"> <hr id="yui_3_16_0_ym19_1_1501710884731_478723" size="1"> <b><span style="font-weight:bold;">De :</span></b> mbranco <mbranco2@gmail.com><br> <b><span style="font-weight: bold;">À :</span></b> hot@openstreetmap.org <br> <b><span style="font-weight: bold;">Envoyé le :</span></b> jeudi 3 août 2017 20h31<br> <b><span style="font-weight: bold;">Objet :</span></b> [HOT] Mapping (also) for the routing<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1501710884731_478635"><br><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478634">After the discussion [1] about routing issues inside/around hamlets and<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478636">villages, I reviewed my mapping I've done until now in #2768 HOT project<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478643">(Nigeria), doing the following:<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478644"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478645">- if two or more unclassified/track highways reach a village from different<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478655">directions and are not connected between, I tried to connect them:<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478656"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478646">a) if buildings/huts were not too much close one each other: I drew<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478648">highway(s) (=residential) inside the village, connecting the external roads<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478653"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478649">b) if not, but there was at least one track near/around the village linking<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478650">the external roads, I mapped it.<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478651"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478657">c) if none of the above, I drew a "logical" road outside the village tagging<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478658">it with highway=road and fixme="confirm (routing issue)" (I think that the<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478660">definition of "highway=road" tag [2] is appropriate for this context, but<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478661">maybe it could be a problem for rendering and/or routing alghoritms: if so<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478662">we could tag them with "highway=track"?). <br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478663"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478664">The last solution was applied only if:<br></div><div dir="ltr">- without that junction, routing solution should propose (at least) several<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478667">chilometers more<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478668">- the ground as seen from the aerial images seems reasonably travelled by a<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478669">4x4 vehicle<br></div><div dir="ltr">- the lenght of this junction is not so much (almost always less than 100<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478670">meters)<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478672"><br></div><div dir="ltr">I'm very interested in your opinion, my work is easily checkable with this<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478702">overpass query [3] which extracts all the highway=road in the selected area:<br></div><div dir="ltr">so, if the community doesn't agree with my solution, it's very fast to<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478698">delete or to change tagging for all these specific highways.<br></div><div dir="ltr"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478683"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478674">[1]<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478677"><a href="http://gis.19327.n8.nabble.com/landuse-residential-and-routing-problems-tp5900081.html" target="_blank" id="yui_3_16_0_ym19_1_1501710884731_478676">http://gis.19327.n8.nabble.com/landuse-residential-and-routing-problems-tp5900081.html</a><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478679">[2] <a href="http://wiki.openstreetmap.org/wiki/Tag:highway%3Droad" target="_blank" id="yui_3_16_0_ym19_1_1501710884731_478678">http://wiki.openstreetmap.org/wiki/Tag:highway%3Droad</a><br></div><div dir="ltr">[3] <br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478700">[out:xml][timeout:25];<br></div><div dir="ltr">(way["highway"="road"](11.867,14.412,12.212,14.766););<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1501710884731_478681">out meta;>;out meta qt;<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">--<br></div><div dir="ltr">View this message in context: <a href="http://gis.19327.n8.nabble.com/Mapping-also-for-the-routing-tp5900230.html" target="_blank">http://gis.19327.n8.nabble.com/Mapping-also-for-the-routing-tp5900230.html</a><br></div><div dir="ltr">Sent from the Humanitarian OpenStreetMap (HOT) mailing list archive at Nabble.com.<br></div><div dir="ltr"><br></div><div dir="ltr">_______________________________________________<br></div><div dir="ltr">HOT mailing list<br></div><div dir="ltr"><a ymailto="mailto:HOT@openstreetmap.org" href="mailto:HOT@openstreetmap.org">HOT@openstreetmap.org</a><br></div><div dir="ltr"><a href="https://lists.openstreetmap.org/listinfo/hot" target="_blank">https://lists.openstreetmap.org/listinfo/hot</a><br></div><br><br></div> </div> </div> </div></div></body></html>