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The width of a corridor must be sufficient for the occupant load served and not less than 36 inches (914 mm). Corridors serving an occupant load greater than 30 and openings in these corridors must provide an effective barrier to resist the movement of smoke. Transoms, louvers, doors, and other openings must be kept closed or be self-closing.
Exceptions:
1. Corridors in occupancies other than in Group H, that are equipped throughout with an automatic sprinkler system.
2. Corridors that are in accordance with the Chicago Building Code.
(Amend Coun. J. 2-19-20, p. 14473, Art. V, § 33; Amend Coun. J. 1-26-22, p. 43756, Art. IV, § 2)
The width of aisles and aisle accessways must be sufficient for the occupant load served and not less than 28 inches (711 mm).
Exceptions:
1. Aisles and aisle accessways within individual dwelling units or sleeping units.
2. Aisles and aisle accessways in rooms or spaces uses for assembly purposes that comply with Section 1029 of the Chicago Building Code.
(Added Coun. J. 1-26-22, p. 43756, Art. IV, § 3)
Every high-rise building must install and maintain features identified in the life safety evaluation report and life safety compliance plan prepared pursuant to the ordinance of December 15, 2004, as amended, and accepted by the building official and fire code official.
Exceptions:
1. Parking facilities complying with Section 406.9 of the Chicago Building Code.
2. Open-air portions of a Group A-5 occupancy.
3. Buildings that are required by Section 14X-5-504.2.9 to be provided with an automatic sprinkler system.
4. Buildings that are equipped with a permitted automatic sprinkler system.
5. Alterations permitted in accordance with the Chicago Building Rehabilitation Code where the registered design professional certifies in writing that the alterations will not reduce or otherwise negatively impact the score of the life safety evaluation on which the life safety compliance plan is based.
(Amend Coun. J. 2-19-20, p. 14473, Art. V, § 34)
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