A Heuristic-Mixed Genetic Algorithm for Type II Assembly Line Balancing with Multiple Workers in Workstations

Table 5

Solutions of the case study problem by hGA and Lingo.

Work-station	hGA			Lingo
	Tasks	No. of workers	Utilization	Tasks	No. of workers	Utilization
1	1, 3, 9	2	0.9375	1, 2, 4	2	0.875
2	2, 4, 6, 7	3	0.9444	3, 6, 7, 9	3	0.9861
3	5, 8	3	1	5, 8	3	1
4	10, 11	1	1	10, 11	1	1
5	12, 13, 14, 15	3	1	12, 13, 14, 15	3	1
6	16, 17, 18	2	0.9167	16, 17, 18	2	0.9167
7	19, 20	2	1	19, 20	2	1
8	21, 22, 23, 24	2	1	21, 22	1	0.9167
9	25, 26, 27, 28, 29, 30	2	0.9583	23, 24, 25, 26, 27, 28, 29, 30	3	1
Cycle time	12			12
Utilization SD	0.0337			0.0492