Japan

Turn restriction (no_left_turn) 8296701 lacks 'to' way

Turn restriction (no_left_turn) 508841684 doesn't start or end at 'via' node or way

Turn restriction (only_straight_on) 10224648 lacks 'from' way

Turn restriction (only_straight_on) 451291325 ) ways connect in more than one place

Turn restriction (only_left_turn) 457209055 ) ways connect in more than one place

Turn restriction (only_straight_on) 10224648 lacks 'to' way

Turn restriction (no_right_turn) 6681687 lacks 'via' node (guessing it should be at https://www.openstreetmap.org/?mlat=34.751048&mlon=133.918452&zoom=17, why don't you add it to the OSM data?)

Turn restriction (no_left_turn) 14287940 lacks 'to' way