TRIPOD example cases

The TRIPOD theory is clear and straightforward. Working with it in practice require some time in building the experience. At some point, performing a Tripod analysis becomes the 'routine'standard for incident analysis, because of the experience with the added value of it.  As a help in building the Tripod trees, we herewith give some example trees. Some more will be added in due time.

TRIPOD case 1
Dominant underlying factors of work related accidents; Paper presented at the 3rd International Conference Working on Safety, September 2006. Download the paper here.

As described in the paper, a Tripod incident analysis structure (Tripod tree ) is set up from common cause found in several incident analysis studies. This Tripod tree is therefore a useful checklist and starting point for the type of activities that we are discussing here: working at height, working with high voltage, working on pipes with hazardous material etc.


TRIPOD case 2
BP Gulf of Mexico disaster (2010); Broken barrier- and TRIPOD analysis; Download the information and Tripod tree here.

The BP investigation report (8 September 2010) of the Horizon platform disaster shows that eight safety barriers have been broken. Each broken barrier is the starting point of an analysis according to the Tripod theory.

More TRIPOD cases
In the SSC book '25 year later' TRIPOD analyses are included from the Bhopal and Mexico City disasters in 1984. Also other Tripod trees are included. The eBook can be ordered in our web shop.


Column februari 2014
Incidents: Occupational and Process Safety: other worlds?

In the magazine of the VNCI (Dutch Chemical Industry) of October 2013 an article is published about a Lost Time Injury (LTI) analysis of incidents in 2012 that was made on the basis of a survey among ...

Read more