7.11.1 For category B craft, the public spaces
shall be divided into zones according to the following:
-
.1 The craft shall be divided into at least two
zones. The mean length of each zone shall not exceed 40 m.
-
.2 For the occupants of each zone there shall
be an alternative safe area to which it is possible to escape in case
of fire. The alternative safe area shall be separated from other passenger
zones by smoke-tight divisions of non-combustible materials or fire-restricting
materials extending from deck to deck. The alternative safe area can
be another passenger zone. Alternative safe areas shall be dimensioned
on the basis of one person per seat and 0.35 m2 per person
of the net remaining area, based on the maximum number of persons
they are called to accommodate in an emergency.
-
.3 The alternative safe area shall, as far as
practicable, be located adjacent to the passenger zone it is intended
to serve. There shall be at least two exits from each passenger zone,
located as far away from each other as possible, leading to the alternative
safe area. Escape routes shall be provided to enable all passengers
and crew to be safely evacuated from the alternative safe area within
the structural fire protection time for areas of major fire hazard.
7.11.2 Category A craft need not be divided into
zones.
7.11.3 Control stations, stowage positions of
life-saving appliances, escape routes and places of embarkation into
survival craft shall not, as far as practicable, be located adjacent
to any areas of major or moderate fire hazard.