Motorcycles also can use the lanes.
But they don't, do they?? They only use the edge of the lane and whip past everyone, which scares me to death every day. They come up around the curves behind you so fast you can't see or hear them, pass on the right, and if you make a wrong move, you risk brain damage or loss of limbs for the guy/gal on the bike. This is VERY upsetting to me. THEY are the ones who get hurt. My dad had so many bikers as patients.