Reverse Logistics Vehicle Routing Optimization Problem Based on Multivehicle Recycling

Table 1

Recycling center and recycling point parameter table.

Customer number	Recycling amount (ton)	Coordinate	Time window
0	0	(0, 0)	[0, 0]
1	2.53	(3, 2)	[0, 10]
2	1.22	(1, 5)	[10, 35]
3	1.65	(5, 4)	[5, 25]
4	1.42	(4, 7)	[0, 5]
5	0.85	(0, 8)	[15, 30]
6	1.36	(3, 11)	[35, 75]
7	2.20	(7, 9)	[40, 75]
8	3.31	(9, 6)	[25, 45]
9	1.46	(10, 2)	[5, 25]
10	1.89	(14, 0)	[65, 85]
11	2.35	(2, 16)	[35, 50]
12	3.80	(6, 18)	[20, 35]
13	1.75	(11, 17)	[48, 75]
14	3.91	(15, 12)	[10, 30]
15	1.43	(19, 9)	[70, 90]
16	2.82	(22, 5)	[0, 20]
17	5.83	(21, 0)	[55, 74]
18	1.34	(27，9)	[0，20]
19	1.67	(15, 19)	[60, 85]