[mkgmap-dev] Unnecessary routing instructions

Hi there, Recently my Etrex has started giving some entirely unnecessary routing instructions, in particular in the middle of roads where there are no junctions. It seems to occur where ways have been split. For example, heading south along this dual-carriageway, I get the instruction "keep left on N11" at this point: http://www.openstreetmap.org/?node=19223905 Interestingly, I don't seem to get those unnecessary instructions at actual junctions. Any hints where in the code I could start looking? Thanks, Andrew