Hi all, I just noted that v0 was not complete (source for AngleChecker missing). Attached is the new patch based on r3632, no functional change, but with less noise in logging. Binary: http://files.mkgmap.org.uk/download/278/mkgmap.jar Some more remarks: - The current code considers angles <= 45 as sharp. I am not sure about this value, maybe it should depend on the combination of road class/speed values that appear in the two arcs. I am working on this. - In some cases the log will show e.g. ... sharp angle 24° at 53.152893,8.711292 don't know how to fix it I think they are good candidates for an algo that adds an arc as suggested by Felix. For the node at 53.152893,8.711292 I would want to add an arc between the nodes 3305128837 and 2902056869. Maybe I find a way to code that... Gerd