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

Table 4

Calibration results when only local parameters were selected.

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	0.0884	100	100	N/A	4.00	<5 for 100%
90	0.0860	100	100	N/A	3.20	<5 for 100%
80	0.0873	100	100	N/A	3.10	<5 for 100%
70	0.0946	100	100	N/A	3.40	<5 for 95%
60	0.1369	100	71.4	N/A	11	<5 for 64%
For the McTrans model
100	0.0480	100	100	N/A	0.60	<5 for 100%
90	0.0421	100	100	N/A	0.40	<5 for 100%
80	0.1249	89	100	N/A	3.60	<5 for 100%
70	0.0924	94.40	100	N/A	1.40	<5 for 100%
60	0.0974	100	100	N/A	2.70	<5 for 100%
50	0.0959	94.40	100	N/A	3	<5 for 100%
40	0.1367	88.20	66.70	N/A	2.70	<5 for 90%