2.10.1 Where compliance with this chapter requires
consideration of the effects of passenger weight, the following information
shall be used:
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.1 The distribution of passengers is 4 persons
per square metre.
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.2 Each passenger has a mass of 75 kg.
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.3 Vertical centre of gravity of seated passengers
is 0.3 m above seat.
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.4 Vertical centre of gravity of standing passengers
is 1.0 m above deck.
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.5 Passengers and luggage shall be considered
to be in the space normally at their disposal.
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.6 Passengers shall be distributed on available
deck areas towards one side of the craft on the decks where assembly
stations are located and in such a way that they produce the most
adverse heeling moment.
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.7 Passengers assumed to be occupying seats shall
be taken as having a vertical centre of gravity corresponding to being
seated, with all others standing.
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.8 On the decks where assembly stations are located,
the number of passengers on each deck shall be that which generates
the maximum heeling moment. Any remaining passengers shall be assumed
to occupy decks adjacent to those on which the assembly stations are
located, and positioned such that the combination of number on each
deck and total heeling moment generate the maximum static heel angle.
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.9 Passengers shall not be assumed to gain access
to the weather deck nor be assumed to crowd abnormally towards either
end of the craft unless this is a necessary part of the planned evacuation
procedure.
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.10 Where there are seats in areas occupied by
passengers, one passenger per seat shall be assumed, passengers being
assigned to the remaining free areas of the deck (including stairways,
if appropriate) at the rate of four per square metre.