Technological Risk Prevention Plan - Hazard Overpressure 50/140 - Dunkirk Urban Community
Description
Technological risk prevention plans (PPRT), created by the law of 30 July
2003 following the AZF disaster in Toulouse, have as their objective,
inherited from the past, to improve and perpetuate the coexistence of site activity
so-called "high-risk" industrialists with their local residents. They are intended to ensure the
protecting people while offering industrial sites the opportunity to invest in their
the future without jeopardising the security of their neighbourhood. They are an indispensable tool for
development of industrial areas under safe conditions.
The PPRTs foresee, after a prior reduction of the risk at source (at the expense of the operator of the
industrial site):
‘land’ measures on existing urbanisation, consisting of expropriations and rights
voluntary abandonment of property;
“additional” risk reduction measures at source proposed by the operator
going beyond regulatory requirements, where their implementation is less costly
whereas the land measures which they make it possible to avoid;
restrictions or rules on future urban planning, on the use of future buildings,
existing or future communication, equipment, etc., as well as restrictions on use or
building rules for future buildings built near the industrial site;
work to be carried out on existing buildings in the vicinity of the industrial site, in order to
reduce vulnerability, works the amount of which may not exceed 10% of the market value of the
Good.
** The different levels of risk are staggered as follows:**
**TF+** Very Strong +
Effects whose consequences on human life are judged
very serious and including the accumulation of classes of probability of occurrence of phenomena
dangerous at this level of intensity leading to these effects is
strictly
greater than D
.
**TF** Very Strong
Effects whose consequences on human life are judged
very serious
and
of which the cumulation of probability classes of occurrence of phenomena
dangerous at this level of intensity leading to these effects is
between
D and 5E.
**F+** Strong +
Effects whose consequences on human life are judged
very serious
and
of which the cumulation of probability classes of occurrence of phenomena
dangerous at this level of intensity leading to these effects is
strictly
less than 5E
Or
Effects whose consequences on human life are judged
severe
and of which
cumulation of classes of probability of occurrence of dangerous phenomena
at that level of intensity leading to those effects is
Strictly greater than D.
**F** Strong
Effects whose consequences on human life are judged
severe
and of which
cumulation of classes of probability of occurrence of dangerous phenomena
at that level of intensity leading to those effects is
between D and
5E.
**M+** Average +
Effects whose consequences on human life are judged
severe
and of which
cumulation of classes of probability of occurrence of dangerous phenomena
at that level of intensity leading to those effects is
Strictly less than 5E
Or
Effects whose consequences on human life are judged
significant
and
of which the cumulation of probability classes of occurrence of phenomena
dangerous at this level of intensity leading to these effects is
strictly
greater than D.
M
Medium
Effects whose consequences on human life are judged
significant
and
of which the cumulation of probability classes of occurrence of phenomena
dangerous at this level of intensity leading to these effects is
between
D and
5E.
**Low** Low
Effects whose consequences on human life are judged
significant
and
of which the cumulation of probability classes of occurrence of phenomena
dangerous at this level of intensity leading to these effects is
strictly
less than 5E
Or
Potentially subject to an effect whose consequences are breakage of
windows.
**Superpressure hazard 50/140**
Resources
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Tags
- santé-et-sécurité-des-personnes
- lieux-de-production-et-sites-industriels