Designing a Multistage Supply Chain in Cross-Stage Reverse Logistics Environments: Application of Particle Swarm Optimization Algorithms

Table 13

The first period transportation plan by PSOA_IWM.

From	To	Stage 1			Stage 2				Stage 3					Stage 4
		1.1	1.2	1.3	2.1	2.2	2.3	2.4	3.1	3.2	3.3	3.4	3.5	4.1	4.2	4.3	4.4	4.5	4.6
Stage 1	1.1				0	0	0	34
	1.2				5	646	17	0
	1.3				1615	154	6	15
Stage 2	2.1								379	392	190	237	327
	2.2								38	0	8	261	459
	2.3								0	10	10	0	2
	2.4								0	0	48	0	0
Stage 3	3.1													6	28	194	163	1	5
	3.2													0	9	114	13	146	100
	3.3													0	0	0	27	168	56
	3.4													126	61	1	154	0	137
	3.5													291	366	0	8	0	72
Demand														400	450	300	350	300	350