To limit the probability that vestibules, enclosed balconies
or bridges that are used as parts of a horizontal exit will be of 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.
To supersede the requirement for a minimum clear width in
the first part of Sentence
and permit the projection of
handrails into this clear width, if the projection of the handrails is limited.