NYC Subway HD: Kawasaki R188 7811-7821 Emergency Brake Testing at Gun Hill Road (5/6/13)

Shot on May 6th, 2013. They were performing more emergency brake tests today, allowing me to shoot some good footage of the cars. To see the rundown of this set as the test crew is on their lunch break, go here:    • New York City Subway HD EXCLUSIVE Walkdown...