Sentence 9.8.4.4.(2)

Intent 1:

To relax the requirement stated in Sentence 9.8.4.4.(1) in cases where the top or bottom riser of flights of stairs adjoins a sloping finished walking surface.

This is to limit the probability that non-uniform rise will 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.