Video isn't very clear on this but it seems to infer that the artificial pitch below must either: a) be itself also split into strips which space out sideways

Video isn't very clear on this but it seems to infer that the artificial pitch below must either: a) be itself also split into strips which space out sideways to reveal rails just below the surface, or b) be removed entirely as an unshown step between "NFL" and "rails are exposed"