| This
is one of the most elaborate and extensive studies. The site is visited and exhaustive
discussions with site personnel are undertaken. The study usually covers risk
identification, risk analysis, risk assessment, risk rating, suggestions on risk
control and risk mitigation. Interestingly,
risk analysis can be expanded to full fledge risk management study. The risk management
study also includes residual risk transfer, risk financing etc. Stepwise,
Risk Analysis will include:
Hazards identification Failure modes and frequencies evaluation from
established sources and best practices. Selection
of credible scenarios and risks. Fault and event trees for various
scenarios. Consequences - effect calculations with work out from models.
Individual and societal risks. ISO risk contours superimposed
on layouts for various scenarios. Probability and frequency analysis.
Established risk criteria of countries, bodies, standards. Comparison
of risk against defined risk criteria. Identification of risk beyond
the location boundary, if any. Risk mitigation measures. The
steps followed are need based and all or some of these may be required from the
above depending upon the nature of site/plant. Risk
Analysis is undertaken after detailed site study and will reflect Chilworth exposure
to various situations. It may also include study on frequency analysis, consequences
analysis, risk acceptability analysis etc., if required. Probability and frequency
analysis covers failure modes and frequencies from established sources and best
practices for various scenarios and probability estimation. Consequences
analysis deals with selection of credible scenarios and consequences effect calculation
including worked out scenarios and using software package. Risk
Acceptability Analysis:- Risk
acceptability analysis covers individual and societal risk, established risk criteria
of countries, bodies and standards. ISO risk contours are super imposed on layout
for various scenarios and risk against defined risk criteria are also compared.
The study will include effective suggestion on risk mitigation measures.
These suggestions are practical, workable and take into account local constraints,
if any. |