Solving a Large-Scale Multi-Depot Vehicle Scheduling Problem in Urban Bus Systems

Table 4

Efficiency ratio (ER).

	Efficiency Ratio
Number of Trips	Different Values
	Minimum Value	Lower quartile Value	Median Value	Upper quartile Value	Maximum Value	Average Value
500	2.81	2.84	2.88	2.93	3.00	2.89
1000	2.92	2.96	2.98	3.01	3.04	2.98
1500	3.58	3.61	3.65	3.69	3.74	3.65
2000	3.72	3.74	3.76	3.83	3.90	3.79