An Adaptability Analysis of the Space-Vehicle Traffic State Estimation Model for Sparsely Distributed Observation Environment

Table 5

Result of scenarios with missing ramp observers.

Scenario	All cells in the channel						Cell without ramp observers
	Result			Error			Result			Error
	RMSE (km/h)	MAE (km/h)	MAPE (%)	RMSE (km/h)	MAE (km/h)	MAPE (%)	RMSE (km/h)	MAE (km/h)	MAPE (%)	RMSE (km/h)	MAE (km/h)	MAPE (%)
CASE C-1	7.59	2.53	4.34	0.86	0.08	0.15	19.54	4.14	5.81	10.34	0.96	1.71
CASE C-2	11.74	3.01	4.81	5.01	0.55	0.62	69.06	10.34	11.62	56.05	6.20	6.87
CASE C-3	51.61	4.17	6.12	44.88	1.72	1.93	501.15	21.44	25.66	495.45	19.17	21.59
CASE C-4	48.50	4.31	6.55	41.77	1.86	2.36	461.33	22.13	29.29	455.62	19.86	25.22
CASE C-5	28.63	3.64	6.22	21.90	1.19	2.03	253.58	16.87	28.71	242.80	13.65	22.95
CASE C-6	28.40	3.66	5.78	21.67	1.21	1.59	228.78	14.12	19.67	224.11	12.10	15.77
CASE C-7	27.79	3.77	6.18	21.06	1.31	1.99	231.52	15.82	24.76	226.84	13.79	20.86
CASE C-8	31.51	3.95	6.56	24.78	1.49	2.37	283.22	19.95	31.91	273.36	16.53	26.24