3.4.6.6.(1)

Intent 1:

To limit the probability that the absence of walls or guards on the sides of exits will lead to persons falling from a higher level to a lower level, which could lead to harm to persons.

Intent 2:

To limit the probability that the absence of walls or guards on the sides of exits will inhibit their use 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.