There was another accident at the GW parkway crossing to get from the Mt. V to Mem bridge this morning. Only cars involved, no injuries as far as I could tell. I came upon it after the fact. A cyclist who witnessed it had stopped and told me what he saw (he said three bikers who had crossed right in front after it happened just laughed and rode off).
It was the classic case of a motorist stopping in the right lane to let someone cross, then a car in the left lane stopping, and then a car behind the guy in the left lane plowing into him.
Cars kept slowing down (in the right lane only) for me to cross there, and I waved them through. No thanks, I'll wait for a gap.