Safety Speed

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Safety _at_ Speed

• WP1 - Collision Grounding
• Progress Next Steps

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WP1 Structure

• Task 1.1
• Confirmation of main causes ?
• Task 1.2
• Formulation of models
• Fault Trees Parameters list
• Next steps
• Task 1.3
• Hazard Area Risk/Cost model (implementation of
  models)

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Goals of T1.2

• Develop detailed models for the identified
  factors (Task 1.1)
• Human Errors (Sub-Tasks 1.2.1)
• Mechanical and Automation Failures
  Errors(Sub-Tasks 1.2.2)
• Manoeuvring Error (Sub-Tasks 1.2.3)

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Characteristics of T1.2

• Partners
• DMI (leader 1.2.1), DAP (leader 1.2.2), BV, VBD,
  SIREHNA (leader 1.2.3), METTLE, NTUA, CET
• Links
• Input to implementation phase (T1.3)
• Schedule 1/10/01 (start) - 30/9/02 (finish)
• Manpower Partners involvement

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Achievements

• Fault Trees (4.0)
• Implementing
• Decisions taken at technical meeting on 22-23
  April at DMI
• Meeting follow up
• Allocation of Basic Events among T 121/ 122/ 123
• Power Prediction Algorithm
• Parameters list
• Identification of Operational Design parameters
  for each Basic Event

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Next Steps (1/3)

• Fault Trees (4.1) new Parameters
• Definition of new parameters according to
  template proposed by UNEW (sub-Task leaders
  related members)
• Template available on 20/05/02 (?)
• Concise form of Fault Trees (DAP)
• Allocation of new parameters to Basic Events
  (sub-Task leaders related members)
• By 30/05/02 (meeting at ABS on 31/5)

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Next Steps (2/3)

• Basic Events Modelling
• Development of models (qualitative description)
  for
• assessing Basic Events probabilities (Risk)
• calculating result of parameter changes
• in cost, only at generic level
• in probabilities
• sub-Task leaders related members
• By 30/09/02

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Next Steps (3/3)

• Deliverables D121, D122 D123
• Template provided by UNEW for all WPs (1 to 4)
• sub-Task leaders related members
• By
• 05/09/02, First draft (Helsinki)
• 16/09/02, Internal (WP1) review
• 23/09/02, Implementation of comments
• 30/09/02, Submission for review (ABS, FIN)

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Technical Presentation

• Fault Trees
• Power Prediction Algorithm

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Release 4.0

• Fault trees input
• derived from FMECA results made by WP5 people
• developed by BV in another project on Ro-Ro.
• developed by DAP in ATOMOS II IV on a generic
  vessel
• developed in the brainstorming session in Genova

• Collision
• In Open Sea, in Bad Good Visibility
• In Restricted Waters
• Contact
• with fixed object
• with floating object
• Grounding
• Powered and Drift

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Example
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Human Errors

• Human or operator -
• Error
• Failure
• Fault
• Inadequate performance
• etc.

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Human Errors

• Watch-keeping failure
• Helmsman error
• Wrong use of...
• Did not manage to...
• Forgot to...

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Definition
A human error (fault, failure) is any inadequate
performance made by the human operator,
crew-member, OOW, helmsman etc.
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The simple information-processing model
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The simple human information-processing model
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Human activitiesautomated
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Human activitiescross-level
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Human activitiescomplete
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Human activities and Performance Shaping Factors
PSFs
PSFs
PSFs
PSF Performance Shaping Factor
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PSF

• Permanent
• Temporarily
• Global
• Local
• Internal
• External

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PSF - examples

• Human fatigue
• Personality and attitudes
• Emotional state
• Incapacitation
• Knowledge
• Experience
• Skills
• Communication
• Workplace environment
• Operational task demands

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PSF causal dynamics
I
II
III
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Parameters
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Further development

• Determination of PSF patterns
• What does they look like?
• Relevance of PSFs in different situations
• Determination of mode of action
• How does parameters influence PSFs?
• Establish functions or relationships between
  parameters and PSFs

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Power Prediction Algorithm

• INPUT
• Speed, length, draught, displacement and water
  depth
• Variations of the input parameters are
  represented by changes in the power curves as to
  be expected by physical / hydrodynamic reasons

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