Calibration of Microscopic Traffic Flow Simulation Models considering Subsets of Links and Parameters

Table 3

Calibration results when all parameters were selected simultaneously.

Percentage of links selected for calibration	NRMS	Individual link flows			Relative difference between total actual and simulated counts	GEH statistic for individual link flows
		<700 veh/hr	700 to 2700 veh/hr	>2700 veh/hr
For the Reno network
100	0.0751	100	100	N/A	1.20	<5 for 100%
90	0.0966	100	100	N/A	4.50	<5 for 97%
80	0.0845	100	100	N/A	3.30	<5 for 100%
70	0.0862	100	100	N/A	4.20	<5 for 93%
60	0.0919	100	100	N/A	4.50	<5 for 100%
50	0.1068	88.90	100	N/A	6.90	<5 for 93%
40	0.1119	100	100	N/A	7.30	<5 for 88%
30	0.1285	90	88.60	N/A	10.20	<5 for 73%
20	0.1555	90	57.10	N/A	13.70	<5 for 57%
For the McTrans model
100	0.0305	100	100	N/A	0.30	<5 for 100%
90	0.0463	100	100	N/A	0.20	<5 for 100%
80	0.0317	100	100	N/A	0.40	<5 for 100%
70	0.0697	100	100	N/A	0.50	<5 for 100%
60	0.1366	89	100	N/A	2.60	<5 for 95%
50	0.1835	72	100	N/A	5.00	<5 for 85%
40	0.1980	78	100	N/A	9.60	<5 for 80%