Vehicle Routing Problem with Time Windows and Simultaneous Delivery and Pick-Up Service Based on MCPSO

Table 1

The supplies and demands and time window of each customer.

Customer 𝑖	1	2	3	4	5	6	7	8
Demands 𝑔𝑖	0.8	1.5	0.8	0.7	1.4	1.5	0.6	0.8
Supplies 𝑝𝑖	0.6	1	1	1	0.8	1.2	0.8	0.8
Time window	[1,3]	[2,4]	[1,2]	[3.5, 7]	[3.5, 5]	[2,5]	[2,5]	[1,4.5]