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

Table 5

Summary statistics of queue length (vehicles/per cycle).

Model	Statistical index	Intersection	Sample size	Maximum	Minimum	Mean	Standard
TRRL model	Queue length	I	120	14	0	2.74	2.79
		II	150	30	2	8.12	4.87
		III	180	38	3	15.98	7.16
NEW model	Queue length	I	120	12	0	3.24	3.02
		II	150	25	2	6.04	3.66
		III	180	24	2	10.02	4.39