Mark Vogel: Approach(ing the end)
Mark Vogel: N&W position color light signal showing absolute stop
Mark Vogel: N&W position color light signal showing medium approach (diverging approach)
Mark Vogel: N&W position color light signal 1
Mark Vogel: N&W position color light signal 2
Mark Vogel: N&W position color light signal 3
Mark Vogel: N&W position color light signal 4
Mark Vogel: N&W position color light signal 5
Mark Vogel: N&W position color light signal 6
Mark Vogel: N&W position color light signal 7
Mark Vogel: N&W position color light signal 8
Mark Vogel: N&W position color light signal 9
Mark Vogel: N&W position color light signal 10
Mark Vogel: N&W position color light signal 11
Mark Vogel: N&W position color light signal 12
Mark Vogel: N&W position color light signal 13