![]() ![]() While there are many physical similarities there are also a number of the human and operational differences for a passenger ship evacuation. Much of the data for this circular was derived from the measurement of the movement of people in building on land. The resulting MSC Circ 1033 was always intended as an interim guideline. The IMO Maritime Safety Committee asked the Sub-Committee on Fire Protection to develop guidelines for passenger ship evacuations in general. It specifies a minimum of four passenger evacuation cases to be considered modelling full passenger ship evacuation during the day and at night and another case involving just one of the main vertical fire zones but assuming that only 50% of the stairways are available or than an additional 50% of the passengers from a neighbouring zone are forced to move into the zone to proceed to the assembly point also during the day and at night. The guidelines provide for the possibility of undertaking either a simplified or a more advanced passenger ship evacuation analysis method. ![]() The guidelines require passenger ships evacuation to be assessed by computational means during the design phase to provide information on the duration of evacuation, passenger flows throughout the ship and to identify and, as far as practicable, eliminate areas of congestion. Since these are currently only an IMO guidelines it is the responsibility of individual member governments to decide whether to incorporate all or part of the guidelines into their own national legislation or to merely leave them as ‘guidelines.’ 80 minutes applying to ships having more than three main vertical (fire) zones.60 minutes should apply to ships having no more than three main vertical (fire) zones: and.The IMO “Guidelines for a Simplified Evacuation Analysis for New and Existing Passenger Ships” covered by MSC Circ 1033 and its successor MSC Circ 1238 recommend a maximum allowable total passenger ship evacuation time to be in the range of 60 to 80 minutes based on the following: The total passenger ship evacuation time will also include the time taken by the passengers and crew to actually assemble at the muster station from wherever they happened to be on the ship once the initial alarm has sounded. However, this regulation stipulates that the 30 minute timeframe only starts when all the passengers have been mustered with lifejackets donned. The International Maritime Organisation (IMO) under SOLAS Chapter III Regulation 21.1.4 requires that all survival craft shall be capable of being launched with their full complement of persons within a period of 30 minutes from the time the abandon ship signal is given. ![]() The Passenger Evacuation Seminar will present the work of the SAFEGUARD project, which has undertaken a series of full-scale ship passenger evacuation trials to gather data for calibration and validation of ship based evacuation simulation models. You may also be interested in the next Design & Operation of Passenger Ships Conference, which is taking place in London on 30 April. ![]()
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