The stopped trains on the right do indeed look like depot runs, although they look like intermediate stops (it's 50x accelerated so most trains stop only for a few minutes, and continue rather than reverse towards the station).

OTOH I think in-service trains stopping just outside a terminal station is near-unavoidable: when a departing and an arriving train stop at the same platform or their paths cross, a delay for the train scheduled to pass the 'exclusion zone' can delay the other. (Still, when I was in Gare St. Lazare, which by number of calling trains is like the busiest commuter rail station in the world, I don't remember seeing a single example.)

_{*Lunatic*, n.
One whose delusions are out of fashion.}