Automatic Estimation Method for Intersection Saturation Flow Rate Based on Video Detector Data

Table 5

Saturation headway estimations based on the 80% quantile for the three lanes.

Data	Lane 1	Lane 2	Lane 3
T.N.I.	3	6	5
N.S.	380	392	302
Final DF statistic	-1.91	-1.83	-1.87
Mean value of SH(s)	2.421	1.790	2.232
Median of SH (s)	2.404	1.801	2.229
Mode of SH (s)	2.419	1.796	2.224
S.D. of SH (s)	0.544	0.251	0.362
Limit error of SH (s)	0.055	0.025	0.041
I.E. of SH (s)
Estimated SFR (pcu/h)	1487	2011	1613
I.E. of SFR (pcu/h)

T.N.I. represents total number of iterations; N.S. denotes number of the samples; S.D. represents standard deviation; I.E. denotes interval estimation; SH is the abbreviation of saturation headways.