Automated Incident Detection Using Real-Time Floating Car Data

Table 2

AID FCD scores per configuration on the A58.

LOOP	ON	OFF	PRE-ON	PRE-OFF	POST-ON	POST-OFF	INTER	PRE-INTER	POST-INTER	Total
ON	55.57	0	0	8.44	8.27	0	0	3.06	3.18	1600843	ON
OFF	0	6.72 + 07	9.23	0	0	9.31	2.95	0	0	67594192	OFF
										2038913	active
ON	48.91	0.97%	0.46%	5.81	1.85	2.65%	1.24%	1.88	1.71	5.278%	FP
OFF	6.66%	6.71 + 07	8.77	2.63%	6.42%	6.66	1.71	1.18%	1.46%	18.345%	FN
										13.77%	HM
ON	53.01	1.37%	0.90%	6.89	3.54	3.41%	1.72%	2.41	2.31	7.40%	FP
OFF	2.57%	6.71 + 07	8.33	1.55%	4.73%	5.90	1.23	0.65%	0.86%	10.36%	FN
										5.98%	HM
ON	54.45	1.95%	1.37%	7.43	4.79	4.07%	2.01%	2.70	2.63	9.40%	FP
OFF	1.13%	6.71 + 07	7.86	1.01%	3.48%	5.24	0.94	0.36%	0.54%	6.52%	FN
										2.97%	HM
ON	55.02	2.63%	2.92%	7.54	6.19	4.20%	2.24%	2.80	2.89	11.99%	FP
OFF	0.56%	6.71 + 07	6.31	0.90%	2.08%	5.11	0.71	0.26%	0.28%	4.08%	FN
										1.72%	HM
ON	53.18	4.67%	4.21%	6.02	5.50	2.90%	1.99%	2.34	2.50	13.77%	FP
OFF	2.39%	6.71 + 07	5.02	2.42%	2.77%	6.41	0.96	0.72%	0.68%	8.98%	FN
										6.02%	HM
ON	54.91	7.70%	5.99%	7.10	6.91	3.71%	2.42%	2.73	2.89	19.82%	FP
OFF	0.67%	6.70 + 07	3.24	1.34%	1.35%	5.59	0.53	0.33%	0.28%	3.97%	FN
										2.12%	HM
ON	55.38	10.21%	6.88%	7.61	7.53	4.42%	2.63%	2.91	3.05	24.14%	FP
OFF	0.20%	6.70 + 07	2.35	0.83%	0.74%	4.89	0.32	0.15%	0.13%	2.05%	FN
										0.91%	HM
ON	55.40	13.74%	7.27%	7.64	7.61	4.58%	2.66%	2.93	3.06	28.25%	FP
OFF	0.17%	6.69 + 07	1.96	0.80%	0.65%	4.73	0.29	0.13%	0.12%	1.87%	FN
										0.83%	HM

Reported percentages are all relative to the active time of the loop AID system. Values in bold correspond to the benchmark state. Absolute numbers represent the total time (in seconds) all detectors on the studied route throughout the study period spent in that state. The (OFF, OFF) state results were reported in absolute numbers as it is not part of the active time.