RT 15S near Foy Ave exit
New portable equipment. A small footprint and NO car. Appears to be two 1′ high posts set about 18" apart and a car battery. Must be radio trasmission of speed and almost invisible until you’re on top of it.
I’ve seen 5 patrol cars, marked and unmarked, active at this site. The cars line up at the Foy Ave Southbound on-ramp and pick off the speeders as they go through the trap.