Hello, So my post from a couple weeks ago was correct. You can have turn restrictions with via ways. Attached is a patch that does that and also implements the "More restriction exceptions <http://www.mkgmap.org.uk/pipermail/mkgmap-dev/2010q2/008330.html>" I posted yesterday. I'd like to warn that this was a quite complex thing and I did not fully understand the relation structure in mkgmap so it may break other thinks. I needs to be reviewed by s.o. who knows how restriction relation works in mkgmap. It has limitations as well: * If the via ways gets split for routing (like in http://www.openstreetmap.org/browse/relation/275622 where via way http://www.openstreetmap.org/browse/way/41694496 gets split at http://www.openstreetmap.org/browse/node/62547613 because of an incoming ramp), the relation creation fails * I did not try with more than one via way but it probably just fails as well Those again would need to be looked at by s.o. with better knowledge of how routing and restrictions works. Thanks, N.