A Hybrid Fuzzy Genetic Algorithm for an Adaptive Traffic Signal System

Table 2

Results of FLC with traditional logic method, Conventional Traffic Controller, CTC, and FLC with Genetic Algorithms, FLCGA. NVB is the number of vehicles that exists in the area of the four intersections before applying the method. NVA is the number of vehicles that exists after applying the method. The T. time is the summation of the total time of green lights time interval that was decided by the method.

	NVB	CTC		FLC		FLCGA
		NVA	T. time (sec)	NVA	T. time (sec)	NVA	T. time (sec)
Mean	75.6	45.6	60	53	43.07	51.1	32.39
Standard deviation	±10.9	±9.5	0	±12.7	±5.5	±11.2	±6.5
Mean of absolute deviation	9.5	8	0	10.8	4.5	9.1	5.7
Median	77	45.5	60	52	44.8	52	30.6