Figure 3 - Percentage of urban areas for each different kind of national landscape units
Figure 4 - Tri-dimensional models of increasing territorial urban density from
UD=15 mq/ha (high to left) to UD=1000 mq/ha (down to right).
Urban dispersion (URD)
this parameter regards the distribution of urban nucleus (obtained as centroids of the
different urban areas polygons) within the considered spatial units. It is possible to have
the simple formulation of URD (e.g number of nucleus/units area), or other formulation
that could consider the distances among the nucleus. The URD data have to be
interpreted together the UD because to give the settlement structural characteristics and
could be linked directly to the disturbance typologies on the natural matrix.