The PTC Central Test. On Saturday, January 19, 2019, the New York and Atlantic Railway assembled a train of stone cars with 151 (MP15AC), 300 (PR20B) and caboose 52 holding the markers to facilitate shoving moves and headed to the MTA LIRR Central Branch. Throughout the day, the consist made a number of trips over the line checking speeds and signal response. A view from the only overpass on the line, Broadhollow Road in Farmingdale, NY, shows the lengthy consist.