
57Hierarchical Intelligent Traffic System
data and calls for a self-adjusting mechanism for the selection of adequate control modes. In
PIACON, this task is realized by real-time adjustment of the domination structure, which is
represented by polyhedral convex cone D = {a ∈ R
2
: Av ≥ 0, KerA = (0)} generated in real-time
by preference directions v
i
of the currently most representative traffic and environmental situ-
ation modes. In Figure 4.3, we can see that for the D
EF
domination cone, the corresponding
N[Y|D
EF
] set contains the N points between fuel mode (FM) and emission mode (EM). This is
why the polyhedral D
EF
cone can be treated as the cone ...