2.3.1 With reference to Cl.2.2.2 where passengers are discharging from the incident platform via public area staircases and escalators onto the non-incident platform, the occupant load of the non-incident platform must include the passengers using public area staircases and escalators. Where passengers are discharging from the non-incident platform via public area staircases and escalators onto the incident platform, the occupant load of the incident platform must include the passengers using public area staircases and escalators.

2.3.2 Refer to Diagram 2.3.2 – 1 & 2 for the occupant load calculations under the two scenarios for an underground station with two stacked platforms.