The causes of accidents
If your company’s accident causation model looks like a row of dominoes you may be lead to believe that accidents, incidents, and bad safety performance are the result of unsafe act and unsafe conditions., both of which are ultimately the responsibility of people ,as people are involved in every step from design, construction, operation, maintenance, and decommissioning. 
This philosophy is based on the work of an
Safety Culture
“Organisational culture” seems to be an elusive concept that evades strict definition and identification, yet we all know what the culture is in any organisation we encounter and can describe its characteristics. A subset of “organisational culture” is “safety culture”, which is not immune to the same vagaries and adds another layer of abstractions.
Given the difficulties in describing and defining an organisations culture, one might expect it to be difficult to identify its origins