The HITERM Demonstrators
The HITERM projects has produced three major
each of them illustrated with an on-line slide show:
Chemical process plants (Italy)
using the example of the Ponte S.Pietro industrial district in
Bergamo, Northern Italy, a number of accident scenarios following
the Seveso II guidelines for the plants in this area have
been formulated and simulated.
The primary objective of the Italian Demonstrator was to show
a completely integrated operational system including
the transparent integration of high-performance parallel models
(spill, wind field, Lagrangian atmospheric dispersion model) based on PVM
and a workstation cluster.
Railway transport (Switzerland)
The Swiss Demonstrator concentrates on the transport of hazardous
material by train, across the strategic North-South Alpine
corridors. The example of the Reuss valley as a steep alpine
valley with an extreme orography poses a considerable challenge
to the atmospheric dispersion models, but demonstrates
the need for advanced complex models and thus high-performance
computing to obtain realistic and reliable forecasts of the
evolution of an emergency. The case study implements the RTXPS
real-time expert system as the decision support framework
for emergency management.
Road transport (Portugal)
The Portuguese test case finally concentrates on a very practical case:
more than a hundred fuel trucks make the daily trip from the Aveiras fuel
depot to the Airport of Lisbon along the major North-South highway leading
into the capital. Accident scenarios for the fuel trucks include fire,
explosion, and soil and groundwater contamination. An on-board
alarm unit with GPS/GSM communication triggers the
RTXPS expert system.
In addition to the three major case studies,
and a number of smaller applications, primarily designed to
test and illustrate specific features and functions of
the system have been built.
These demonstration cases also include on-line
web-based client-server demos of:
The Metodo Speditivo fast risk assessment method;
The Italian Method for the:
PIANIFICAZIONE DI EMERGENZA ESTERNA PER
IMPIANTI INDUSTRIALI A RISCHIO DI INCIDENTE RILEVANTE
uses a set of tabulated values for primary and secondary impact
zones, based on the substance characteristics, the amount,
storage conditions, and finally the weather where atmospheric
dispersion of a toxic substance is among the impact scenarios.
The Dynamic Multi-Puff atmospheric dispersion model
in combination with the DWM multi-layer diagnostic wind model
describes the dynamic evolution of an intermittent
atmospheric release typical for an accidental spill. The model
can be used for complex terrain and time-variable release patterns,
and is linked to an assessment branch that estimates population exposure.