Hi Gerd I'm getting routing problems with Basecamp when using routing island removal. Building with: java -jar ../mkgmap.trunk/mkgmap.jar -c ticker.cfg --check-routing -island-len=700 --family-name=trRIL700 -c template.args ticker.txt a high proportion of routes fail, ie it just generates a straight line. This is using Motorcar, Shortest distance, no avoids. My Garmin device generates routes correctly. Building with: java -jar ../mkgmap.trunk/mkgmap.jar -c ticker.cfg --check-routing -island-len=-1 --family-name=trRIL-1 -c template.args ticker.txt routes are calculated that follow roads. mkgmap.trunk is my build of the latest sources (r4373), attached are the various small files, with img data unchanged from before: http://files.mkgmap.org.uk/download/454/hants.pbf.zip Some examples that work: "SO22 6AN" to "SO23 8DS" "SO22 6AN" to "SO15 7NQ" Some examples that fail in Basecamp: "SO22 6AN" to "SO23 8RJ" "SO22 6AN" to "SO15 1AG" "SO22 6AN" to "SO15 7NG" "SO15 7NG" to "SO15 7NQ" I also notice that display:test.check.NetCheck and NodCheck run through on --c-r-i-l=700 but give quite a few errors, whereas, with --c-r-i-l= -1, NetCheck doesn't find any errors but NodCheck crashes after giving the message: --------- 74210002.img -------------------- Could not find node for road 48815 nod2=173db Exception in thread "main" java.lang.NullPointerException at test.check.NodCheck.checkNod2(NodCheck.java:91) at test.check.NodCheck.print(NodCheck.java:63) at test.display.CommonDisplay.display(CommonDisplay.java:204) at test.check.CommonCheck.runMain(CommonCheck.java:145) at test.check.NodCheck.main(NodCheck.java:1004) I wonder if you can help - I was trying to use Basecamp to narrow down another routing problem I was having with my Garmin device. Thanks Ticker