Exploring Heterogeneity in Car-Following Behaviors Based on Driver Visual Characteristics: Modeling and Calibration

Table 8

Calibration results of heterogeneous car-following model.

Road	Model	Following types	c1	c2					Calibration error
									Mean	Std. dev.
I-80	DVA	S-S	6.160	11.877	4.046	4.235	0.076	4.042	0.430	0.292
		S-L	6.482	11.697	4.034	4.180	0.086	4.209	0.399	0.251
		L-S	7.263	11.918	3.546	4.381	0.091	3.952	0.387	0.227
		L-L	7.141	11.465	3.791	4.245	0.080	3.938	0.348	0.223
	FVD	S-S	8.049	11.205	4.052	4.247	0.216	−0.149	0.894	0.941
		S-L	8.711	9.765	4.026	3.956	0.260	−0.106	0.769	0.618
		L-S	9.057	10.472	3.883	4.279	0.275	0.110	0.890	0.976
		L-L	9.569	10.364	4.014	4.171	0.211	−0.213	0.730	0.754
US-101	DVA	S-S	6.385	11.624	5.304	5.592	0.069	6.007	0.455	0.372
		S-L	7.331	11.393	5.819	6.737	0.060	4.927	0.434	0.309
		L-S	7.594	11.580	5.400	6.721	0.063	5.353	0.459	0.389
		L-L	6.570	11.385	5.721	6.573	0.070	4.992	0.424	0.341
	FVD	S-S	8.489	10.950	4.832	4.917	0.176	−0.337	0.905	0.703
		S-L	9.005	10.094	4.955	5.881	0.150	−0.264	0.634	0.612
		L-S	8.227	10.197	5.294	5.121	0.185	−0.332	0.658	0.508
		L-L	7.765	10.545	4.463	6.064	0.181	−0.213	0.727	0.653