Option --check-roundabout-flares produces a lot of warnings about ways that are correct IMHO, like the following examples: (RouteNode): 55114001.o5m: Incoming roundabout flare road (http://www.openstreetmap.org/browse/way/22974731) points in wrong direction? http://www.openstreetmap.org/?mlat=39.476332&mlon=-6.340242&zoom=17 (RouteNode): 55114002.o5m: Outgoing roundabout flare road (http://www.openstreetmap.org/browse/way/53537671) does not finish at flare? http://www.openstreetmap.org/?mlat=36.471647&mlon=-6.207968&zoom=17 (RouteNode): 55114001.o5m: Incoming roundabout flare road (http://www.openstreetmap.org/browse/way/183666800) points in wrong direction? http://www.openstreetmap.org/?mlat=40.026175&mlon=-6.096136&zoom=17 (RouteNode): 55114001.o5m: Outgoing roundabout flare road (http://www.openstreetmap.org/browse/way/55608338) points in wrong direction? http://www.openstreetmap.org/?mlat=39.430758&mlon=-6.365738&zoom=17 (RouteNode): 55114002.o5m: Outgoing roundabout flare road (http://www.openstreetmap.org/browse/way/226321374) points in wrong direction? http://www.openstreetmap.org/?mlat=37.234124&mlon=-7.250831&zoom=17 Code for this check was written long ago now and perhaps could be improved some way to avoid such noise. I can supply more examples if needed, my log is full of them.