(a) Node 1
(b) Node 2
(c) Node 3
(d) Node 4
(e) Node 5
(f) Node 6
(g) Node 7
(h) Node 8
Figure 4: Evolution of an attack generation on the tram network with BETWI. The giant component is highlighted in red and bold. When attacking the 8th node, the size of the giant component is already reduced to less than 20% of the original size.