The roof can receive a news or emergency aircraft if the group can make contact, mark the landing zone, and hold it while everything below follows the signal.

A drainage and cable culvert leaves the mechanical plant beneath the perimeter. It is quiet, cramped, wet, and completely indifferent to panic.

The checkpoint can become a real evacuation route if the group reaches it with evidence, credibility, and enough humanity left to be recognized as survivors.

A freight route through the Spine to vehicles beyond the loading bay. Power, staff access, and a working vehicle determine whether it is an exit or a concrete dead end.