Fire Safety Science Digital Archive

EXITT is a discrete event simulation of occupant decisions and actions in a postulated fire. To run the model the physical descriptions of a residence, a specific fire in that residence and the assumed occupants of the residence are entered into the computer. Based on a large set of decision rules, the occupants "make" decisions which are a function of the smoke conditions in the building, the characteristics and status of the occupants (including their capabilities), and the available travel routes. The occupants investigate the fire, alert and assist others, and evacuate the building. The simulation ends when all the occupants are either out of the building or are trapped by the smoke.