Influence of Large Vehicles on the Speed of Expressway Traffic Flow

Table 6

Model prediction of the average speed of traffic flow in G65.

No.	LOS	V/C	Mixingrate of large vehicles (%)	Average speed of traffic flow (km/h)	Model 1
					Forecast value (km/h)	Relative error(%)
1	A	0.30	25.7	100.6	104.4	3.78
2		0.33	28.9	100.1	104.1	4.00
3		0.33	23.7	99.9	104.7	4.80
4		0.34	12.0	103.1	106.6	3.39
5	B	0.38	21.8	94.9	94.1	−0.84
6		0.39	15.3	97.0	95.5	−1.55
7		0.55	11.1	93.3	96.8	3.75
8		0.50	11.2	99.4	96.8	−2.62
9		0.54	9.9	98.8	97.3	−1.52
10		0.48	7.3	100.6	98.5	−2.09
11	C, D	0.57	10.5	92.3	88.6	−4.01
12		0.65	8.4	96.6	89.9	−6.94
13		0.68	8.6	94.5	89.8	−4.97
14		0.75	3.9	90.3	94.4	4.54
15		0.84	5.2	88.5	92.7	4.75
Average absolute relative error						3.57