I have a spot about 15 miles in on the way to work where there are two lights within a couple hundred feet of each other, the second crossing a big highway. the MUP peters out right before the first and picks back up on the other side of the second so for about 100 yards or so I have to mix it up with traffic. The thing is that if you move at a decent clip you can make both lights (even on a bike) so everyone is trying to get through there as quickly as possible.
I figure if I ever do get creamed that's where it's most likely going to happen. But as FSM points out, we never really do know until afterward, do we?