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

SECTION 2.6
STATION SMOKE CONTROL AND
MECHANICAL VENTILATION SYSTEMS
ROOT OBJECTIVES
The primary intentions of this section are encapsulated in the
following statements:-
R2.6.1 Maintain tenable conditions for evacuation of occupants.
R2.6.2 Provide smoke management in the station for fire-fighting
operations.
SUB-OBJECTIVES
The following criteria define the conditions necessary to fulfil
the intentions of this section:-
S2.6.1 Provisions for ventilation for life safety purposes such that, in
the event of a fire, evacuation routes are maintained:-
(i) below thermal threshold for human tenability; and
(ii) at visibility levels adequate for occupant evacuation;
and
(iii) below toxicity threshold for human tenability; and
(iv) not impeding the movement and evacuation of
occupants.
for the period of time required for evacuation.
S2.6.2 Provisions for ventilation to maintain safe conditions in the
means of escape for evacuees for the period of time required
for evacuation.
S2.6.3 Provisions for appropriate smoke management system in the
station to facilitate fire-fighting operation.
S2.6.4 Provisions for adequate ventilation for equipment emitting
flammable vapour, to prevent undesirable accumulation of
such flammable vapour.
Standard for Fire Safety in Rapid Transit Systems 108