9. Conclusion

Quantifying risks requires methodologies that provide sufficiently "reliable" results, so that design choices or choices related to urban planning can be made on the basis of quantified risk analyses. Assessing leakage frequencies is a key stage in this type of study, as these values are one of the input data. In most studies, they are taken directly from databases.

While the HCRD database for the off-shore sector is currently a benchmark recognized by the industry, the on-shore sector suffers cruelly from the absence of an equivalent database.

To date, a method for weighting leakage frequencies from data banks is essential if we are to carry out quantified risk analyses that take into account the specific characteristics of the site under study, both in terms of the intensity of the stressors (corrosion, impact, etc.) and the performance...