Section 5.5.6.3.2 of NFPA Standard 130 is hereby amended to read as follows:

5.5.6.3.2.1 For enclosed stations, no less than 2 stairways shall be enclosed, and separated by not less than 75% of the longest diagonal dimension of the platform, and not less than 60% of the capacity ofhe means of egress shall be of enclosed stairways not less than 60" in width.

5.5.6.3.2.2* Escalators may only be permitted to be used as a means of egress as provided for in this section.

5.5.6.3.2.3* Capacity and travel speed for stairs and escalators shall be computed as follows:

(1) Capacity – 0.0555 //mm-min (1.41 pim)

(2) *Travel speed – 15 m/min (48 (fpm) (indicates vertical component of travel speed)

5.5.6.3.2.4* Escalators may account for up to 25% of the required number and capacity of the means of egress at any one level

5.5.6.3.2.5 Escalators may be permitted to account for up to 25% of the required number and capacity of the means of egress at any one level for purposes of calculating platform evacuation time where the following criteria are met:

(1) The escalators are capable of being remotely brought to a stop in accordance with the requirements of 5.5.2.1(3)(b), 5.5.2.1(4), and 5.5.2.1(5).

(2) A portion of the means of egress capacity from each station level is comprised of stairs.

(3) For enclosed stations, at least one enclosed exit stair or exit passageway shall provide continuous access from the platforms to a public way.

5.5.6.3.2.6* In calculating the egress capacity of escalators, one escalator at each level shall be considered as being out of service.

5.5.6.3.2.7 The escalator chosen shall be the one having the most adverse effect upon egress capacity.