Traffic Flow Modeling of Freeway Variable Speed Limit Control Based on the Big Data of Driving Behavior

Table 5

Proportion of free-flow characteristics at different density limits in time-space diagrams.

Density value (veh/km)	No VSL (%)	120 km/h (%)	100 km/h (%)	80 km/h (%)	60 km/h (%)
0.14	100	100	100	100	100
0.15	25	30	85	100	100
0.16	10	10	35	100	100
0.17	0	5	10	95	100
0.18	0	0	0	20	90
0.19	0	0	0	0	25
0.20	0	0	0	0	0