Geopolitics Magazine March - April 2015 ( 8th Edition ) | Page 86
Geopolitics & Daily News Magazine
The most important factor examined is the reason that caused those Barriers to have failed.
The construction of a “tree” diagram forms a graph representation of the incident mechanism which
describes the events and its relationships. The event in a TRIPOD Beta Diagram is the result of the
Hazard acting upon an Object. A Barrier is something that was made to prevent the meeting of an
object and a hazard.
When such a Barrier fails, a causation path is made to explain how and why this happened. The
TRIPOD Beta method presumes that incidents are caused by human error, which can be prevented by
controlling the working Environment. The Causation path displays this by starting with the Active
Failure of the Barrier, then under what Precondition or in what contextual state this happened and
lastly ends by identifying the Underlying Causes that had led to the Accident.
By delving into the “Preconditions” World , emanating after the accident,
investigators have the
opportunity to deepen their knowledge about the Safety Culture segment of the Organisations involved
into the accident and reliably identify both Behavior Norms and Shared Values that dictated the
established patterns of actions that have driven the Causes of Accident.
The aim of TRIPOD Beta is not only uncovering the hidden deficiencies in an Organisation; the Latent
Failures, but also offering a solid starting point to hone all necessary changes in the Organisational
Cultures suffered by the accident. Those flaws
are
classified into eleven Basic Risk Factors (BRF’s),
categories that represent distinctive areas of management activity, where the solution of the problem
lies. All the items of the TRIPOD Diagram are visible below:
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