We use a matching algorithm that still recognizes streets with small spelling errors and takes into account derivations like st. and straat. Spelling shouldn't be a problem.<br><br>I'll see if I can prepare the data in a good format for you. Also an update mechanism would be nice. After updating osm blackspots should dissappear! :-)<br>
<br>The updates will be max daily.<br><br>If you can do all this that would be great! It's not that urgent so take your time!<br><br>Regards,<br><br><br>Ben<br>
<br><br><div class="gmail_quote">On Fri, Oct 14, 2011 at 6:39 PM, Jan-willem De Bleser <span dir="ltr"><<a href="mailto:jw@thescrapyard.org">jw@thescrapyard.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I think I understand :)<br>
<br>
On Fri, Oct 14, 2011 at 18:16, Ben Abelshausen<br>
<<a href="mailto:ben.abelshausen@gmail.com">ben.abelshausen@gmail.com</a>> wrote:<br>
> ...If no street with<br>
<div class="im">> the same name can be found the closest street is taken.<br>
><br>
> This all returns a distance and then we filter all these that have distances<br>
> higher than let's say 50m. This gives us a good estimate of where roads are<br>
> missing!<br>
><br>
<br>
</div>This'll help avoid spelling mismatches, but doesn't it mean that a<br>
missing address won't show up in the heat map if it's within 50m of<br>
any other street, even the wrong one? Any idea if this is a<br>
significant problem? Say, for example, addresses on a city alley<br>
missing from OSM but near another street?<br>
<div class="im"><br>
> I can share lat/lon/distance records that we use to generate the 'heat'maps.<br>
> I think there are about 50000 with a distance > 50m. The records will have<br>
> no address data (postalcode, street, housenumber), that is the part i am not<br>
> supposed to share.<br>
<br>
</div>So, a table of lat/lon/dist values where you know of an address but no<br>
street is nearby, from which we can generate heatmaps. It should be<br>
small enough to throw up on a website somewhere, and then we just need<br>
a script to do the rendering. I'd be interested in working that out<br>
(probably possible with GDAL or similar) but I'm away next week so it<br>
won't be for right away.<br>
<div><div></div><div class="h5"><br>
Cheers,<br>
Jw<br>
<br>
_______________________________________________<br>
Talk-be mailing list<br>
<a href="mailto:Talk-be@openstreetmap.org">Talk-be@openstreetmap.org</a><br>
<a href="http://lists.openstreetmap.org/listinfo/talk-be" target="_blank">http://lists.openstreetmap.org/listinfo/talk-be</a><br>
</div></div></blockquote></div><br>