An Improved Car-Following Speed Model considering Speed of the Lead Vehicle, Vehicle Spacing, and Driver’s Sensitivity to Them

Figure 4

Illustration of correlations of speed of the lag vehicle with vehicle spacing and speed of the lead vehicle. (a) Vehicle No. 783 following vehicle No. 778 in lane 1, (b) vehicle No. 1,246 following vehicle No. 1,241 in lane 2, (c) vehicle No. 1,240 following vehicle No. 1,233 in lane 3, and (d) vehicle No. 938 following vehicle No. 934 in lane 4.

(a)

(b)

(c)

(d)