Stacy Smith SYSM 6309 – Spring 2015. Costa Concordia January 13, 201232 Lives Lost Hit rocks...
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Transcript of Stacy Smith SYSM 6309 – Spring 2015. Costa Concordia January 13, 201232 Lives Lost Hit rocks...
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Failure to Float Twice:The Costa Concordia & MV SewolStacy SmithSYSM 6309 – Spring 2015
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The Costa Concordia
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The MV Sewol
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Listing : A Brief Lesson
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Costa Concor
diaJanuary 13,
2012
32 Lives Lost
Hit rocks causing gash
Both Ships
Ship listed
Captain delayed call to abandon ship
Capt. Abandoned ship before passengers
MV Sewol
April 16, 2014
304 Lives Lost
Illegally modified
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Recommended Solution• Create the ability for the nearest Coast Guard to
activate an alarm on board the ship • Cannot be overridden• Must be obeyed by all crewmembers• Signals all passengers and crewmembers to immediately
initiate evacuation
• Criteria for Coast Guard Intervention• List Angle• Acceleration of Vessel• Ship Vitals
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Class Diagram
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Activity Diagrams• Current State• Precondition: Ship is in distress• Postcondition: The ship is evacuated
• Issues• If the Captain fails to acknowledge (truthfully or not) that
the ship is in distress, the ship will not be evacuated in time and there will be a loss of life• This delay could be amplified if a loss of power occurs and
the Abandon Ship order is not transmitted clearly
Capt. acknowledge
s Ship’s distress
Capt. Orders Abandon
Ship
Crew assists passengers
with abandoning
ship
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Ship begins to list
Capt. acknowledges Ship’s distress
List angle, acceleration,
and ship conditions are sent to Coast
Guard
Coast Guard activates alarm
to evacuate ship
Capt. Orders Abandon Ship
Crew assists passengers with
abandoning ship
Activity Diagrams• Future State• Precondition: Ship is in distress• Postcondition: The ship is evacuated
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Problem Interdependency GraphSoftgoal Interdependency Graph
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D1: The ship is listing.D2: The ship is transmitting its list angle.
R1: The Coast Guard activates the alarm on the ship when it is listing.
Reference Model
The ship’s intercom and radio system
S1: If the ship lists to a certain angle, an alarm will instruct passengers to evacuate.
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Summary• You cannot entirely remove human error or ill-
intentioned actions.• Allowing the Coast Guard to make the unbiased
decision to abandon ship with remove any pride from clouding the situation, ultimately saving lives and reputations.
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References• http://perspectives.mvdirona.com/2012/01/studying-the-costa-concordia-grounding/• http://www.bbc.com/news/world-europe-16563562• http://www.bbc.com/news/world-europe-31430998• http://
www.awpagesociety.com/wp-content/uploads/2013/03/Carnival-Corporation-Case-A-and-B.pdf
• http://www.agcs.allianz.com/insights/white-papers-and-case-studies/safety-and-shipping-report/
• http://www.telegraph.co.uk/news/picturegalleries/worldnews/10985345/Costa-Concordia-in-pictures-Inside-the-cruise-liner-after-two-years-underwater.html?frame=2983891
• http://www.enav-international.com/wosmedia/273/costaconcordiaanatomyofanorganisationalaccident.pdf
• http://www.cbsnews.com/news/fact-sheet-the-costa-concordia-cruise-liner/• http://www.shipcruise.org/costa-concordia/#sinking_animation• http://www.rina.org.uk/costa_concordia_passenger_evacuation.html• https://
www.boat-ed.com/pennsylvania/studyGuide/Hull-Types-and-How-They-Operate/101039_101039011
• http://www.theweek.co.uk/world-news/58164/south-korea-ferry-death-toll-hits-100-salvage-begins
• http://www.nbcnews.com/storyline/south-korea-ferry-disaster