11 Principles and Assumptions
Simulex makes a number of principle assumptions about the geometry of escape and methods of individual movement:
1. Each person is assigned a normal, unimpeded walking speed.
2. Walking speeds are reduced as people get closer together.
3. Each person heads towards an exit by taking a direction which is at right angles to the contours shown on the chosen distance map.
4. Overtaking, body rotation, sideways stepping and small degrees of back-stepping are all accommodated.
