Quantitative risk assessment software

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Quantitative risk assessment software is software that helps to calculate the single loss expectancy (SLE) of an asset.

Software

Onshore

Offshore

  • Offshore Hazard and Risk Analysis (OHRA)
  • PLATO [3]
  • Neptune

Shortcomings

Some QRA-software (such as Safety-nl) has not yet made the transition to 3d. For making certain assessments, this has proven problematic. For example, the contours of the landscape or the structure of buildings or machinery may influence the path of fluids or gases which can pose a risk to the public safety if accidentally released.

Some software also does not allow to input certain parameters. For examply Satefy-nl does not allow wind speeds of 0 to 1,5m/s.

Also, some software does not accuratly predicts the behavior of some fluids or gases. For example, heavier than air-gases have the tendency to from a layer on the surface rather than blending spontanuously with the air.[4] Heavier-than-air gases do the opposite; forming a layer higher up in the air.

There are also some shortcomings which are independent from the software. For example, Probit models are not available or are incomplete for many gases including common ones as CO². This prevents an accurate QRA-assessment for certain projects as it prevents the calculation of casualties upon inhalation of certain chemical gases or fluids.

See also

References

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  1. QRA software
  2. Risktec QRA-software list
  3. Offshore software
  4. Natuurwetenschap & Techniek; April 2009; CO² behavior not implemented to Safety-nl