But wait a second: Why the hell would they put a door big enough for their extremely dangerous dinosaur to fit through? Why didn't they put the I. rex into its pen when it was small (like John Hammond does in the original Jurassic Park) and let it grow there, thus avoiding the logistical nightmare of trying to transport a 10-ton super predator? That way, the only way she could ever escape would be to bust through the wall, Kool-Aid Man style.
s**t, they don't even bother to dig large trenches around the perimeter, like both Hammond and non-prehistoric zoos do. Another good idea Hammond has is electric fences, while Jurassic World just opts to house their raptors with superhuman speed and jumping in an enclosure built out of recycled shipping containers, apparently.
They're gonna need those containers to ship out tourist corpses, anyway.