<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt"><span>Harald, </span><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>I dont know how you conclude that there is no wetlands around this area in Laval. It is not sufficient to see houses around to conclude that there is no wetland. These are often wooded areas with water all over. Google physical also shows a stream starting from this area.<br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0,
0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>The link below shows a comparison of this area with Google imagery. Are you sure that there is no wetland in this area.<br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>http://tools.geofabrik.de/mc/?mt0=mapnik&mt1=googlehybrid&lon=-73.91012&lat=45.69989&zoom=17<br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;">The link below shows an aera in Saint-Jean-sur-Richelieu were houses have been built for over 30 years. Look how
many houses were flooded last year. Zoom in to see areas that were flooded.<br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;">http://pierzen.dev.openstreetmap.org/hot/openlayers/inondation-richelieu-2011.htm?zoom=16&lat=45.28568&lon=-73.24907&layers=B000TFFFF<br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>My experience, as a volunteer for SOS-Richelieu, </span><span><span>last year,</span> showed me how that too often the municipalities have accepted that contractors build houses over wetlands. And this was often the case with
Laval.</span></div><br><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>These imports are part of the process of building the OSM map. This import is a first step and local mappers will eventually validate and correct if necessary.</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><span>The same situation arises with imagery such as Bing when some buildings are built or others demolished.</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: arial,helvetica,sans-serif; background-color: transparent; font-style: normal;"><br><span></span></div>What
we need is to build a strong community of mappers that will improve the map from the state it is presently.<br> <div><span style="font-style:italic;color:rgb(0, 0, 191);font-weight:bold;">Pierre <br></span><br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold;">De :</span></b> Harald Kliems <kliems@gmail.com><br> <b><span style="font-weight: bold;">À :</span></b> Talk-CA OpenStreetMap <Talk-ca@openstreetmap.org> <br> <b><span style="font-weight: bold;">Envoyé le :</span></b> Vendredi 19 octobre 2012 14h04<br> <b><span style="font-weight: bold;">Objet :</span></b> [Talk-ca] Canvec 10 and landcover
issues<br> </font> </div> <br>Hi everyone,<br>I've done some OSMInspector debugging of areas around Montreal and<br>I've come across a number of newly imported natural=wetland areas,<br>sourced from Canvec 10. that are clearly wrong. This, for example,<br><a href="http://www.openstreetmap.org/?lat=45.69514&lon=-73.90455&zoom=17&layers=M" target="_blank">http://www.openstreetmap.org/?lat=45.69514&lon=-73.90455&zoom=17&layers=M</a><br>is a subdivision, not wetland or wood. If you're importing Canvec data<br>could you please make sure to do some plausibility checks, based on<br>aerial imagery or road layout, especially in populated areas? I'm not<br>sure how old the imported data is, but some areas supposedly covered<br>by woods or wetlands look like they've been developed for quite some<br>time.<br><br>Cheers,<br> Harald.<br><br>-- <br>Please use encrypted communication whenever possible!<br>Key-ID:
0x199DC50F<br><br>_______________________________________________<br>Talk-ca mailing list<br><a ymailto="mailto:Talk-ca@openstreetmap.org" href="mailto:Talk-ca@openstreetmap.org">Talk-ca@openstreetmap.org</a><br><a href="http://lists.openstreetmap.org/listinfo/talk-ca" target="_blank">http://lists.openstreetmap.org/listinfo/talk-ca</a><br><br><br> </div> </div> </blockquote></div> </div></body></html>