9.8.5.4.(1)

Objective

OS3 Safety in Use

Attribution

Intent

Intent 1:

To limit the probability of an excessively steep slope in areas that are not intended to be barrier-free:

  • under difficult surface conditions related to the weather, in the case of exterior ramps,
  • in residential occupancies, where users may include those with a limited ability to negotiate ramps,
  • in mercantile or industrial occupancies, where users are likely to be better able to negotiate ramps, and
  • in other occupancies, where users are likely to be able to negotiate ramps, but are present in significant numbers, or are unlikely to use ramps without assistance.

This is to limit the probability of:

  • persons losing their balance, or
  • persons losing their balance 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.

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