1018.1 Minimum Number of Exits

All rooms and spaces within each story shall be provided with and have access to the minimum number of approved independent exits as required by Table 1018.1 based on the occupant load of such story, except as modified in Section 1018.2. For the purposes of this chapter, occupied roofs shall be provided with exits as required for stories. The required number of exits from any story, basement or individual space shall be maintained until arrival at grade or the public way.

  Exception: Unless otherwise required by other provisions of this chapter, the number of exits from ground floors discharging at grade directly to the exterior shall be determined in accordance with Table 1014.1.

Parking garages shall not have less than two exits from each parking tier. An unenclosed vehicle ramp constructed in accordance with Section 1010.2 may serve as one of the required exits when provided with pedestrian facilities along the ramp.

  Exception: Where vehicles are mechanically parked, only one exit is required but such exit shall not be a vehicle ramp.