FYI, "cycleway=track" does not imply unidirectional tracks on both sides (1+1).  If the road is a two-way road, it can be any combination of segregated tracks as long as cyclists in each direction have at least something, e.g. (1+1), (2+0), (0+2), (2+1), (1+2) or (2+2).
I agree that mapping cycle tracks as separate ways can be nice for better accuracy. :-)