ARCHIVED - 3.4.6.4.(7)

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3.4.6.4.(7)


Objective	OA1 Barrier-Free Path of Travel
Attribution	[F73-OA1]
Application	Application 1: Horizontal extension of handrails on stairways and ramps. This applies, in buildings described in Sentence 1.3.3.2.(1) of Division A, to: interior and exterior exits, as stated in Appendix Note A-3.4.6., and exits serving floor areas that are intended for occupancy, including mezzanines as stated in Sentence 3.4.2.2.(1). Application 2: This also applies to: ramps, stairways and passageways used by the public as access to exits, as stated in Appendix Note A-3.4.6., tents and air-supported structures, as stated in Sentences 3.1.6.1.(1) and 9.10.1.2.(1), stairs in a means of egress from a roof, where a roof is used or intended for an occupant load of more than 60, as stated in Sentence 3.3.1.3.(4), ramps and stairways, as stated in Sentence 3.3.1.14.(1), and ramps in a barrier-free path of travel, as stated in Clause 3.8.3.4.(1)(e). Exceptions: except as stated in: Sentence 3.1.6.2.(1), which prohibits air-supported structures from being located above the first storey on any building, Sentence 3.1.6.2.(2), which prohibits air-supported structures from being used for classrooms or for Groups B, C, or Group F, Division 1 major occupancies, Sentence 3.1.6.2.(3), which requires air-supported structures to be designed as open floor spaces without interior walls, mezzanines, intermediate floors or similar construction, Sentence 3.3.1.3.(5), which applies to rooftop enclosures, Sentence 3.3.1.14.(2), which applies to service rooms, service spaces and industrial occupancies, Subsection 3.3.2., which applies to assembly occupancies, Sentence 3.3.4.7.(1), which applies to dwelling units, Sentence 3.4.2.2.(2), which applies to mezzanines that: are not required to terminate at a vertical fire separation [see Article 3.2.8.1.], are not intended for an occupant load more than 60, do not exceed the area limits for rooms and suites in Table 3.4.2.2., and have limited travel distances to egress doors or stairs, and Sentence 3.4.2.2.(3), which applies to at least half of the required means of egress from a mezzanine if the mezzanine is not required to terminate at a fire separation as permitted by Sentence 3.2.8.2.(1).
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Intent	Intent 1: To limit the probability that the absence of a handrail extension at the top and bottom of a stairway or ramp will lead to persons with a visual disability not having positive feedback for determining the top and bottom of the stairway or ramp, which could impede the circulation of such persons.
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