From the signs, that must be the station for Disneyland, Marne la
Vallée-Chessy station on RER line A, about 20 miles east of Paris. It's
not a Métro station. The RER has ticket gates on entry and exit, and
generally tighter security.

I know, I was just using it as an example of the fact that the ticket
barriers are bigger than what we normally have in GB.