To limit the probability that handrails and their supports will be designed for insufficient loading values, which could lead to failure of the handrail while being used by a person, which could lead to a person falling, which could lead to harm to persons.
To limit the probability that handrails and their supports will be designed for insufficient loading values, which could lead to failure of the handrail while being used by a person 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.