General-Logistic-Based Speed-Density Relationship Model Incorporating the Effect of Heavy Vehicles

Table 2

Values of parameters , , and .

Heavy vehicle mixing ratio	(km/hr)	(veh/kml)
0%	81.80	33.0
5%	74.31	31.6
10%	71.22	30.2
15%	67.87	29.0
20%	66.17	27.8
25%	64.18	26.6
30%	62.37	25.1
35%	60.17	23.8
40%	58.41	22.6
45%	56.47	21.3
50%	54.49	20.0