1. Bow Ties for Risk Assessment
Md. Nurul Alam

4. History of Bow Ties
No one knows!
Morphed from Cause Effect Diagram??
Lifted Out from Butterfly Diagrams??
1970 David Gill
1979 Presented in University of Queensland Australia

18. A bowtie diagram can be created by defining
Event to be prevented
Threats that can cause the event to occur
Consequences of the event occurring
Controls to prevent the event occurring
Controls to mitigate against the consequences.

19. Examples

20. A semi-quantitative assessment of occupational risks using bow-tie representation by Celeste Jacinto Cristina Silva

24. Incorporating human factors into a simplified ‘‘bow-tie” approach for workplace risk assessment by Antonis Targoutzidis *

26. Introduction of frequency in France following the AZF accident
by Clément Lenoble, Clarisse Durand

28. Safety & Risk Management Services
Safety Case and Compliance Consultancy

30. Towards the inclusion of external factors in quantitative risk assessment: the analysis of NaTech accident scenarios by Valerio Cozzani

31. Increasing wildfire in alaska’s Boreal forest: pathways to potential solutions of a wicked problem By F. Stuart chapin iii, sarah f. Trainor, orville huntington, amy l. Lovecraft, erika zavaleta, David c. Natcher, a. David mcguire, joanna l. Nelson, lily ray, monika calef, nancy fresco, Henry huntington, t. Scott rupp, la’ona dewilde, and rosamond l. Naylor

33. ABU DHABI NATIONAL OIL COMPANY
HEALTH SAFETY AND ENVIRONMENTAL MANAGEMENT
MANUAL OF CODES OF PRACTICE
VOLUME 5 : RISK ASSESSMENT AND CONTROL OF MAJOR ACCIDENT HAZARDS
CODE OF PRACTICE ON CONTROL OF MAJOR ACCIDENT HAZARDS (COMAH)

39. Working Alone Safely Canadian Petroleum Products Institutes - Guidance Document

40. ‘Bow Tie’ Diagram
This is the ‘Bow tie’ favoured by the Health and Safety Executive
European Best Practice for industrial Disaster Risk Management (iDRM)

41. Managing Risk in Real Time: Integrating Information Technology into Disaster Risk Reduction and Response Comfort, L.K. et al. 2009

42. Application By Hazard/ Topic
The application of Bow-Ties in marine safety
management
TANKER Operator
Marine Safety
Accidental risk assessment methodology for industries in the context of the seveso ii directive
C. Delvosalle, C. Fiévez and A. Pipart
2004
Any hazard
U s i n g m a j o r h a z a r d r i s k a s s e s s m e n t t o a p p r a i s e a n d m a n a g e e s c a p e w a y i n s t a b i l i t y i s s u e s : a c a s e s t u d
Iannacchione, A. T. et al.
major hazards, i.e. fire, explosion, wind-blast, outbursts, spontaneous combustion, roof instability and chemical and hazardous substances, from injuring miners.