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The ATSB Investigation Model
• local conditions
• risk controls
• organisational influences
The ATSB Investigation Model
Individual actions
Individual actions are observable behaviours performed by operational personnel. Operational personnel include pilots, train drivers, ship’s masters, air traffic controllers, cabin crew, maintenance personnel, and others.
Local conditions
Conditions associated with the immediate context or environment in which individual actions occur.
• personal factors
• knowledge, skills, experience
• task demands
• social environment
• workspace environment
• physical environment
• weather conditions
Risk controls
Risk controls are measures put in place by an organisation to facilitate and assure safe operations.
• equipment
• facilities / infrastructure
• procedures
• training and assessment
• people management
Risk controls can be viewed as the outputs of the organisation’s safety management system. There are two main types of risk controls:
• preventive controls
• recovery controls.
Organisational influences
Organisational influences are the conditions that establish, maintain or otherwise influence the effectiveness of an organisation’s risk controls.
• safety management processes
• organisational characteristics
• regulatory influences