4.1 For new ships, if the total evacuation time
calculated, as described in paragraph 3.5 above, is in excess of the
required total evacuation time, corrective actions should be considered
at the design stage by suitably modifying the arrangements affecting
the evacuation system in order to reach the required total evacuation
time.
4.2 For existing ships, if the total evacuation
time calculated, as described in paragraph 3.5 above, is in excess
of the total evacuation time, on-board evacuation procedures should
be reviewed with a view toward taking appropriate actions which would
reduce congestion which may be experienced in locations as indicated
by the analysis.