9.8.4.4.(4)

Intent 1:

To limit the probability that excessive variance in the configuration of a flight of stairs will excessively disrupt the gait of users or force them to switch to the other side of the stair, which could lead to:

• persons misstepping and tripping, or
• persons misstepping and tripping in an emergency, which could lead to delays in the evacuation or movement of persons to a safe place.

This is to limit the probability of harm to persons.