There is a fantastic paved bike path right near me, it runs straight out a point w/ gorgeous views of the ocean on both sides. It was created (as I understand it) to keep the cyclists off the road that travels this point. It's become a MUT - I won't go near it in the summer time. The road has no shoulder and is 50mph speed but I'll ride that before I'll ride the MUT unless I'm super organized and get up and out by 6am.
This is exactly why - way too dangerous for me (and everyone else) for me to be humming along dodging cycling and pedestrian obstacles and its so flat that speed is just too inviting.