Development of an Optimization Traffic Signal Cycle Length Model for Signalized Intersections in China

Table 3

Summary statistics of delay time (sec/per vehicle).

Model	Statistical index	Intersection	Sample size	Maximum	Minimum	Mean	Standard
TRRL model	Delay time	I	120	13.30	0.20	3.64	2.47
		II	150	64.8	5.4	34.51	13.04
		III	180	144.9	20.6	50.13	25.84
NEW model	Delay time	I	120	11.6	0.2	4.27	2.61
		II	150	79.4	9.5	31.08	12.57
		III	180	135.2	19.4	42.58	20.63