3.4.3.3.(4)

Objective

OS3 Safety in Use

Attribution

Intent

Intent 1:

To supersede the requirements of Sentences 3.4.3.2.(8) and 3.4.3.3.(1), and permit a reduction in the width of exits resulting from handrails and construction below handrails if the width reduction is limited to a small reduction.

This is to limit the probability that an exit will be substantially reduced in width, which could lead to:

  • insufficient width to permit efficient egress in an emergency situation, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, and
  • emergency responders being delayed in gaining access to floor areas in an emergency situation, which could lead to delays or ineffectiveness in emergency response operations, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.

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