Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...

2.2.3.6 Exit capacity shall be calculated in accordance with
Cl.2.2.3.7 on the basis of the clear width of means of escape.
The clear width of means of escape shall be the minimum
width required under Cl.2.2.5.4 plus any additional
incremental width available.
2.2.3.7 The capacity of means of escape in person per metre per
minute (p/m/min), passenger travel speeds in metres per
minute (m/min) shall be as follows:
Type of means of
escape
Platforms, corridors and
ramps not more than 4%
in slope
Stairs, escalators and
ramps greater than 4%
in slope
Capacity
(p/m/min)
80 (1) 60
60 (2)
Travel speed
(m/min)
up 15 (3)
down 18 (3)
Doors and gates (5) 80 (4) N/A
(1) In calculating the capacity of horizontal means of
escape routes with a slope not exceeding 4%,
300mm shall be deducted at each sidewall and
450mm at platform edges.
(2) Refer to Cl.2.2.5.12 with respect to the allowable
means of escape contribution for escalators.
(3) The distance component of travel speed for stairs and
stopped escalators is the vertical change in elevation.
(4) Measurement of door width shall be in accordance
with Cl.2.2.5.13(c).
(5) Capacity for fare collection gates shall be in
accordance with Cl.2.2.3.8.
2.2.3.8 Except as required by Cl. 2.2.3.9, the capacity for fare
collection gates and turnstiles shall be as follows:
Type of fare collection equipment Capacity
Gates < 850mm wide 50 p/min per gate
Gates 850mm wide 80 p/min per meter
Turnstiles 25 p/min per gate
Determination
of exit
capacity
Capacity of
means of
escape
Standard for Fire Safety in Rapid Transit Systems 21