Arrow, Season 5, Episode 6 "So It Begins"
This is the Skytrain tracks at 5952 Beresford at Buller in Burnaby. That is (obviously) a CG subway car set. It is not the skytrain but would be confused for it since it's the same scale as the MK I.
The minutes leading to this scene use an actual subway car set since they blow a hole in it.