Introducing Weather Factor Modelling into Macro Traffic State Prediction

Figure 7

The prediction performance of average speed and density in one light snow day (November 14): (a) speed prediction using fixed FD parameter. (b) Speed prediction when weather factors are applied: ; . (c) Density prediction using fixed FD parameter. (d) Density prediction when weather factors are applied: ; .

(a)

(b)

(c)

(d)