Limitations and Known Issues
This version of Pathfinder only simulates movement to exits. It also does not integrate results from a fire model or provide support for complex behaviors (e.g. family grouping). Dynamic geometry is not supported (e.g. opening/closing doors, elevators, moving objects). Occupants make no attempt to optimize door loads when exiting rooms. This is particularly noticeable when working with divided doors. If two doors are available and one provides a shorter path to an occupant's exit, the occupant will always attempt to use this door - even if, due to the door queue, the path would result in a slower evacuation time. The workaround for this issue is to merge divided doors or otherwise modify the doorway geometry to avoid requiring occupant to intelligently select a doorway mid-simulation. The initial delay feature can sometimes cause occupants to form unnecessary queues. If an occupant has not yet begun to evacuate, but is standing directly in the path of another occupant that is actively evacuating, the active occupant will occasionally not proceed until the delaying occupant moves. This is due to the limited resolution of the inverse steering algorithm. If the active occupant cannot identify a direction of travel that allows progress along its path, it will wait for the first occupant to move.