Metamodel-Based Optimization Method for Traffic Network Signal Design under Stochastic Demand

Figure 6

The convergence performance under different initial points: (a) (0.3, 0.7, 0.73, 0.27), (b) (0.8, 0.2, 0.8, 0.2), and (c) (0.2, 0.8, 0.2, 0.8).

(a)

(b)

(c)