2.4.2 Escalator Availability
(a) Each failure of an Escalator in service shall be alarmed to the station
control room via BMS and/or SCADA system and initiate time stamp in the
record. The out of service period shall be recorded until the operation is
resumed.
(b) The duration of the non-availability shall be recorded as the time from
advice of a fault to the station control room up to the time that the Escalator
is returned to normal service.
(c) The Escalator Availability shall be measured