Hi there,
My reasoning for making the bike tracks separate came down to them having physical protection/separation to regular road traffic as I can see concrete barriers from satellite view. In my home city (Christchurch NZ) this is how our separated one-way cycleways have been mapped, this is also why they've been named "cycleways" (sorry about that I didn't know the terminology was different in NA). I will change them to be cycle tracks.

Our cycleways are significantly different in New Zealand, as we generally either have standard bike lanes or something more permanent than parking protected bike lanes and more temporary protection like on Richmond street. Those aren't very common here so maybe I don't know the proper convention for these.