Any ideas for a Newbie?? Working on a show to be set in NYC subway car. For portion of show, subway car will be "moving" down the track. Need to somehow simulate car passing by the regularly spaced wall mounted tunnel maintenance lights, which should be very briefly seen (against black backdrop) streaking past the car windows at 40 mph+/-, periodically every so many seconds. There has to be a better idea than just flashing a light (or strobe?) on/off quickly, but I'm stymied, thinking of how to suggest the motion of the light passing from front to rear windows at subway speed... This is for low budget community theater, typically with rented conventionals and a Leprecon LP-600 or LP-1500 series memory control board. Any thoughts appreciated!