Measuring Service Reliability Using Automatic Vehicle Location Data

Table 3

Parameters for different groups travel time samples.

Groups	Mu		Sigma		Proportion		Mean time*	Median time*	Planning time*
	𝜇1	𝜇2	𝜎1	𝜎2	𝑝1	𝑝2
Empirical	26.1	29.6	0.16	6.40	0.21	0.79	28.9	28.8	33.2
Group A	26.1	29.6	1.80	5.20	0.35	0.65	28.4	28.2	32.9
Group B	26.1	29.6	7.20	7.40	0.15	0.85	29.1	29.2	33.9
Group C	26.1	29.6	0.10	2.00	0.70	0.30	27.2	26.3	31.0
Group D	26.1	29.6	0.10	2.00	0.50	0.50	27.9	26.8	31.4
Group E	26.1	29.6	0.10	8.00	0.01	0.99	29.6	29.6	34.3

 *Time unit is minutes.