OpenStreetMap

1st experience with Map Quality for Routing

Posted by RudiXXL on 26 April 2009 in English (English)

While trying the cloudmade map i have seen some failures in the map quality. Some tracks seems not connected. See the at the end for what i mean. The Road from Waalhaupten to Oberdiessen has no connection at Waalhaupten. That is a problem for routing. Next time i will try to edit the map to see how i can correct such failures.

"http://maps.cloudmade.com/?lat=47.973031&lng=10.826855&zoom=13&directions=47.95889303871108,10.830116271972656,47.98176409413599,10.78634262084961&travel=foot&styleId=1924"

Comment from wieland on 27 April 2009 at 07:18

Testing routing is good, but it's easier to find these errors using
http://keepright.ipax.at/report_map.php
looking at almost-junctions, floating islands, intersections without junctions

For your example you can find a bunch of errors:
http://keepright.ipax.at/report_map.php?zoom=14&lat=47.96886&lon=10.81076&layers=B0T&ch30=1&ch40=1&ch50=1&ch60=1&ch70=1&ch90=1&ch100=1&ch110=1&ch120=1&ch130=1&ch150=1&ch160=1&ch170=1&ch180=1&ch190=1&ch200=1&ch210=1&ch220=1

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Comment from Pixel83 on 27 April 2009 at 11:03

Wow, thanks for that link, that really helps finding bugs!

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Comment from wieland on 27 April 2009 at 11:43

Yes I found many too :-)
Many of them I made myself :-(

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