Moving People, Stationary Train

I was bored on the platform today while waiting for the train that would take me home, surreptitiously photographing people as they walked past me.

Another train was in the background, sitting still.  If you look closely, you can see the lights go on and off in the train.  For whatever reason, before (or sometimes, while) a Metra train pulls out of Union Station, there's some sort of power cycling that happens.  The lights turn off for seconds/minutes.

Anyways, I made an animated GIF of a few minutes of my boredom.  Hope you like it.