Seismic vulnerability analysis of a complex interconnected civil infrastructure - Seismic Risk Analysis and Management of Civil Infrastructure Systems - page 465

BC areas

Sub-city districts

LUP areas

42.4

Grid cells

42.2

Lat (°)

42.0

13.6

13.4

13.2

13.0

12.8

Long (°)

18.3 Polygons on different layers indicate the geographical units used
to specify buildings, demographic and other socio-economic data. The
fi gure also shows the automatically generated grid. The hypothetical
region with three cities is the same used later in the example
application (see Section 18.8).

mechanism makes the meshing refi nement of each system within the Infra-
structure independent of each other. This set-up has an infl uence on the
accuracy of the analysis results, affected by large differences in the meshing
refi nement. This is a compromise that is tolerated in the model due to the
inhomogeneous quality of available data.
The InhabitedArea class has no sub-classes, and each object instantiated
from this class describes a single cell of the grid (the grid is automatically
generated to cover the entire study region and re-meshing takes place to
decrease the cell size in correspondence of urban areas). A detailed descrip-
tion of this class can be found in Cavalieri et al. (2012), which illustrates in
particular the methods employed to predict physical damage and quantita-
tive estimates of emergency-management relevant parameters, such as dis-
placed population and casualties (demands on the shelter and the regional
health-care system models).