Annex 2 - Guidelines for a Simplified Evacuation Analysis for New and Existing Passenger Ships
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1533 – Revised Guidelines on Evacuation Analysis for New and Existing Passenger Ships – (6 June 2016) - Annex 2 - Guidelines for a Simplified Evacuation Analysis for New and Existing Passenger Ships - Annex 2 - Guidelines for a Simplified Evacuation Analysis for New and Existing Passenger Ships

Annex 2 - Guidelines for a Simplified Evacuation Analysis for New and Existing Passenger Ships

1 Specific assumptions

This method of estimating evacuation duration is basic in nature and, therefore, common evacuation analysis assumptions should be made as follows:

  • .1 all passengers and crew will begin evacuation at the same time and will not hinder each other;

  • .2 initial walking speed depends on the density of persons, assuming that the flow is only in the direction of the escape route, and that there is no overtaking;

  • .3 people can move unhindered;

  • .4 counterflow is accounted for by a counterflow correction factor; and

  • .5 simplifications are accounted for in a correction factor and a safety factor. The safety factor has a value of 1.25.

2 Calculation of the evacuation duration

The following components should be considered:

  • .1 response duration (R) should be 10 min for the night time scenarios and 5 min for the day time scenarios;

  • .2 method to calculate the travel duration (T) is given in appendix 1; and

  • .3 embarkation and launching duration (E+L).

3 Identification of congestion

Congestion is identified by the following criteria:

  • .1 initial density equal to, or greater than, 3.5 persons/m2; and

  • .2 the difference between inlet and outlet of calculated flows (FC) is larger than 1.5 persons per second.

Parent topic: Annex 2 - Guidelines for a Simplified Evacuation Analysis for New and Existing Passenger Ships
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