Technological Risk Management:
The XENVIS information system
XENVIS offers a national level GIS with linked data bases for
risk objects like Seveso-class
chemical process plants;
a hazardous chemicals data base is
linked to the plant's safety audits and risk evaluations.
Models for transportation route selection,
tracing spills into surface water systems, and continuous and
accidental atmospheric releases support the risk assessment.
Model input parameters are loaded automatically from the data bases where
feasible, and accident scenarios can be designed interactively be the user
with the help of a rule-based expert system.
In addition to its coupling to the SAFETI package,
XENVIS integrates assessment models for
atmospheric dispersion of hazardous substances
for both accidental, instantaneous
releases as well as continuous, operational release scenarios.
The accidental release model offers interactive site selection and
accident scenario definition; chemical substance parameters are loaded from
the hazardous chemicals data base; and the dynamic model output is shown
as an animated map overlay.
An interactive Java Demo
illustrates the emergency response model integrated in XENVIS.