Sentence 9.8.6.4.(1)

Intent 1:

To limit the probability of insufficient clear height over landings, which could lead to users accidentally contacting the ceiling or protrusions from the ceiling with their head, which could lead to:

• persons falling, or
• persons falling 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.