Based on the radiological situation of the analysing sub-system ASY of
RODOS, early emergency actions like sheltering, evacuation, and the a
dministration of iodine tablets are simulated and their radiological a
nd economic consequences are quantified in the countermeasures sub-sys
tem CSY. The size of the areas with actions and the number of people a
ffected by the actions are calculated. Organ dose fields and consequen
ces like health effects and monetary costs are assessed with and witho
ut the effects of emergency actions. In the interactive mode the user
can combine single emergency actions and generate time dependent count
ermeasure scenarios and modify the areas of these actions initially de
fined by dose intervention levels. A special module has been developed
for dynamic simulation of the evacuation process. It allows calculati
on of the time dependent population distribution, the evacuation durat
ion, and - in connection with the dose modules - to assess the doses r
eceived.