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(CHAPTER 7 FIRE SAFETY REQUIREMENTS) (SECTION 702 MEANS OF EGRESS) 702.1 General: A safe, continuous and unobstructed means of egress shall be provided from the interior of a structure to a public way. 702.2 Exit capacity: The capacity of the exits serving a floor shall be sufficient for the occupant load thereof as determined by the Building Code of University City. 702.3 Number of exits. In nonresidential buildings, every occupied story more than six stories above grade shall be provided with not less than two independent exits. In residential buildings, every story exceeding two stories above grade shall be provided with not less than two independent exits. In stories where more than one exit is required, all occupants shall have access to at least two exits. Ever occupied story which is both totally below grade and greater than 2,000 square feet (186 m) shall be provided with not less than two independent exits. Exception: A single exit is acceptable under any one of the following conditions: 1. Where the building is equipped throughout with an automatic sprinkler system and an automatic fire detection system with smoke detectors located in all corridors, lobbies and common areas. 2. Where the building is equipped throughout with an automatic fire detection system and the exit is an approved smoke-proof enclosure or pressurized stairway. 3. Where an existing fire escape conforming to the Building Code of University City is provided in addition to the single unit. 4. Where permitted by the Building Code of University City. 702.4 Arrangements. Exits from dwelling units, rooming units, guestrooms and dormitory units shall not lead through other such units or through toilet rooms or bathrooms. 702.5 Exit signs. All means of egress shall be indicated with approved "Exit" signs where required by the Building Code of University City. All "Exit" signs shall be maintained visible and all illuminated "Exit" signs shall be illuminated at all times that the building is occupied. 702.6 Corridor enclosure. All corridors serving an occupant load greater than 30 and the openings therein shall provide an effective barrier to resist the movement of smoke. All transoms, louvers, doors and other openings shall be closed or shall be self-closing. Exceptions: 1. Corridors in occupancies in other than Use Group H which are equipped throughout with an automatic sprinkler system. 2. Patient room doors in corridors in occupancies in Use Group 1-2 where smoke barriers are provided in accordance with the Fire Code of University City, are not required to be self-closing. 3. Corridors in occupancies in Use Group E where each room that is occupied for instruction or assembly purposes has at least one-half of the required means of egress doors opening directly to the exterior of the building at ground level. 4. Corridors that are in compliance with the Building Code of University City. 26