Cars traveling South on 15th street crossing JFK have a lane shift slightly to the East. However, this lane shift is unmarked. Most vehicles are unaware of this shift and vehicles in the second lane from the right continue straight, cutting off vehicles in the right lane that need to shift to the left.
This lane shift should be clearly marked via white dotted lines crossing JFK on 15th street.
I have witnessed numerous side-swipe accidents as well as many, many near hits, as people swerve to get out of the way.