Forecasting Travel Speed in the Rainfall Days to Develop Suitable Variable Speed Limits Control Strategy for Less Driving Risk

Figure 4

Travel speed prediction under three data combinations. (a) Travel speed prediction under three data combinations on June 26, 2018. (b) Travel speed prediction under three data combinations on July 3, 2018. (c) Travel speed prediction under three data combinations on July 4, 2018.

(a)

(b)

(c)