3.13.4.2 — General Requirements

(1) Except as otherwise required in this Subsection, the required width of means of egress serving platforms in a rapid transit station shall be determined based on, (a) the required egress capacity determined in conformance with Article 3.13.4.4., and (b) the pedestrian flow rate for the type of means of egress facility listed in Table 3.13.4.5. (2) In calculating the required width of corridors and ramps with a grade of less than 4%, 300 mm at each sidewall shall be added to the width determined based on required egress capacity. (3) In calculating the required width of egress routes, one escalator at each level in a rapid transit station is deemed to be out of service and not available for egress purposes. (4) Except as provided in Sentence (5), the minimum width of means of egress facilities serving platforms shall be, (a) 1 750 mm for corridors and ramps, (b) 1 750 mm for stairs, (c) 430 mm for turnstiles, (d) 500 mm for fare collection gates, (e) 600 mm nominal width for escalators, and (f) 900 mm for a door leaf. (5) A second means of egress as required by Sentence 3.13.4.3. (1) is permitted to be not less than 1 100 mm wide. (6) The minimum width of platforms shall be, (a) 3.2 m for side platforms, and (b) 6.4 m for island platforms. (7) The minimum unobstructed width of platforms measured from the platform edge shall be 2.5 m.

(1) Escalators forming part of a required means of egress shall, (a) where equipped to run reverse to the direction of egress travel, be capable of being stopped remotely and locally, and (b) have a vertical rise not more than 12 m between floors or landings. (2) Where electrically operated gates or turnstiles used for fare collection are intended to be used as part of a required means of egress from a rapid transit station, provision shall be made to release the gates or turnstiles in accordance with Sentence (4) to allow them to operate freely in the direction of egress travel. (3) Where locked doors that prevent entry into a fare-paid area are to be used as part of a required means of egress from a rapid transit station, provision shall be made to release the doors in accordance with Sentence (4) to allow them to operate freely in the direction of egress travel. (4) The release device required in Sentences (2) and (3) shall be installed as an ancillary device to the fire alarm system and shall release immediately, (a) upon activation of the fire alarm signal, (b) in the event of a power failure or ground fault, or (c) upon actuation of a manually operated switch accessible to authorized personnel and located in, (i) a fare collector’s booth or kiosk at the station, or (ii) the central supervising station. (5) After release, the gates or turnstiles in Sentence (2) or the doors in Sentence (3) shall be capable of reactivation only by manual actuation of the switch in Clause (4)(c).