RiskWare Application:

SIGRIC:   Sistema di Gestione Rischio Chimico

A guided tour:   Risk Objects, chemical installations

Risk Objects in in the RiskWare system describe elements such as:
  • sources of risk (such as hazardous installations);
  • targets (such as population centers)
  • resources (such as police stations or hospitals)
The Risk Objects are spatially referenced, have a list of properties accessible to the expert system for reasoning, and can in addition offer a multi-media description that goes beyond their alpha numerical data, for example, imagery such as floor plans or access maps.

The primary Risk Objects are chemical installations.

Through a hierarchy of organisational levels from plant to production unit, production line, process, warehouse, and finally reactor or container, they can provide the source term for emergencies such as spills, fires, or explosions.
Several data bases are linked to these object classes.

The plant object includes, or refers to, a number of data sets of related objects; containers of hazardous chemicals are directly used to provide the source terms for the accident simulation models. They are linked to the hazardous chemicals data base, and supply the information on total amounts summarized in the plant's substance list relevant for the Seveso Directive classification.

The property list of a container, or any of its related objects (parents, siblings, and children) can be edited through the expert system interface, with the support of estimation rules where this is required.

Updates of an objects properties are automatically propagated through the hierarchy of objects, so that a parent's summary information is always up to date.

Among the data item describing a plant, there is also a (hypertext) version of Safety Reports and Emergency Plans, including the analysis of likely accident scenarios as required by the Seveso Directive.

These data can, in principle, be also made available on a selective basis for public access, again as required by the Seveso Directive, through the Internet with a coupled web server.

Introduction GIS, Data Bases Emergency Management Assessment models
Risk Objects Monitoring Evaluation options Communication


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