What’s fascinating about this installation, is that normally, film, runs through the projector gate (or at least in the old days that’s how it worked) at a certain speed, once 18 fps, then in the sound era 24 frames per second.
Video is usually flashing by at 30 fps.
Here you do the moving past these images behind slits on the subway, giving the persistence of image effect that goes back to at least the Zoetrope. It’s not always a smooth animated effect, as it depends on the speed of the train. But I don’t know if there’s anything quite like it in any other subway.
Just one of the many mostly unnoticed works of art in the NYC subway tunnels.