3.3.1.6 — Travel Distance

(1) Except for dwelling units, a minimum of two egress doorways located so that one doorway could provide egress from the room or suite as required by Article 3.3.1.3. if the other doorway becomes inaccessible to the occupants due to a fire that originates in the room or suite, shall be provided for every room and every suite, (a) whose area is more than 15 m2 and is used for, (i) a high hazard industrial occupancy, or (ii) a hazardous room, (b) intended for an occupant load more than 60, (c) in a floor area that is not sprinklered if, (i) the area of a room or suite is more than the value in Table 3.3.1.5.A., or (ii) the travel distance within the room or suite to the nearest egress doorway, is more than the value in Table 3.3.1.5.A., (d) in a floor area that is sprinklered and does not contain a high hazard industrial occupancy if, (i) the travel distance to an egress doorway is more than 25 m, or (ii) the area of the room or suite is more than the value in Table 3.3.1.5.B., or (e) where the area of the room is more than 100 m2 and it is a hazardous classroom in elementary or secondary school. (2) Where two egress doorways are required by Sentence (1), they shall be placed at a distance from one another equal to or greater than one-third of the maximum overall diagonal dimension of the room or suite to be served, measured as the shortest distance that smoke would have to travel between the nearest required egress doors. (3) Except for a mezzanine within a dwelling unit, every mezzanine that is not required to terminate at a vertical fire separation in Article 3.2.8.2. shall have two egress facilities placed in such a manner that one facility could provide egress from the mezzanine if the other facility becomes inaccessible to the occupants of the mezzanine due to a fire that might originate in the room or suite in which the mezzanine is located, (a) where the occupancy of the mezzanine, room or suite is classified as Group F, Division 1, (b) where the mezzanine is intended for an occupant load of more than 60 persons, (c) in a floor area that is not sprinklered if, (i) the area of a mezzanine is more than the value in Table 3.3.1.5.A., or (ii) the travel distance to an egress doorway or an egress facility is more than the value in Table 3.3.1.5.A., or (d) in a floor area that is sprinklered if, (i) the travel distance to an egress doorway or an egress facility is more than 25 m, or (ii) the area of the mezzanine is more than the value in Table 3.3.1.5.B. (4) For the purpose of Clauses (3)(c) and (d), (a) if the room or suite in which the mezzanine is located is permitted to have one egress doorway, the travel distance is measured from any point on the mezzanine to that doorway, or (b) if the room or suite in which the mezzanine is located is required to have more than one egress doorway, the travel distance is measured from any point on the mezzanine to the nearest egress facility leading from the mezzanine. (5) Except for a mezzanine which is not considered as a storey in calculating building height in Sentence 3.2.1.1. (4), where the space below a mezzanine is enclosed, an egress facility from the mezzanine shall not lead into the enclosed space.

(1) Except as permitted by Sentences (2), 3.2.8.4. (4) and 3.3.2.4. (13) to (16), if more than one exit is required from a floor area, the exits shall be located so that the travel distance to at least one exit shall be not more than, (a) 25 m in a high hazard industrial occupancy, (b) 40 m in a business and personal services occupancy, (c) 45 m in a floor area that contains an occupancy other than a high hazard industrial occupancy, provided it is sprinklered, (d) 105 m in any floor area, served by a public corridor, in which rooms and suites are not separated from the remainder of the floor area by a fire separation, provided, (i) the public corridor is not less than 9 m wide, (ii) the ceiling height in the public corridor is not less than 4 m above all floor surfaces, (iii) the building is sprinklered, and (iv) not more than one-half of the required egress doorways from a room or suite open into the public corridor if the room or suite is required to have more than one egress doorway, (e) 60 m in any storage garage that conforms to the requirements of Article 3.2.2.83., and (f) 30 m in any floor area other than those referred to in Clauses (a) to (e). (2) Except for a high hazard industrial occupancy, Sentence (1) need not apply if exits are placed along the perimeter of the floor area and are not more than 60 m apart, measured along the perimeter, provided each main aisle in the floor area leads directly to an exit. (3) Exits shall be located and arranged so that they are clearly visible or their locations are clearly indicated and they are accessible at all times.