Intent 1:
To limit the probability of:
- incompatibility between the height of risers and the
average user's stride, or
- excessively steep stairs, which could lead to excessive
effort required to climb the stairs.
This is to limit the probability of:
- persons misstepping or tripping, or
- persons misstepping or 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.