Mathematical Optimization Model for Truck Scheduling in a Distribution Center with a Mixed Service-Mode Dock Area

Table 3

Obtained results for the current C shift.

	Instance	Makespan (min)	Lower bound (min)	Gap (%)	CPU time (sec)
CPLEX	1	369.3	160.9	56.43	9000.00
	2	372.5	180.49	51.55	9000.00
	3	594.2	351.23	40.89	9000.00
Gurobi	1	367.47	161.08	56.16	9000.00
	2	370.5	198.3	46.48	9000.00
	3	594.2	422.3	28.93	9000.00

Source: owner.