Integrated Inventory Routing Problem with Quality Time Windows and Loading Cost for Deteriorating Items under Discrete Time

Table 7

Results of different shelf-life 𝜀 in the retail stage.

𝜀	Largest delivery interval	Number of deliveries	Retailers’ cost	Supplier’s cost; (production periods)	Transportation cost	Cost of time interval penalty	Total cost
1	1	84	4200	3198.93 (1, 3, 5)	2227.59	185	9811.52
2	2	52	2725.22	3134.74 (1, 3, 6)	1904.71	205	7969.68
3	3	42	2311.17	3125.97 (1, 4, 6)	1804.09	220	7461.23
4	4	36	2109.6	3098.67 (1, 4, 5)	1740.71	250	7198.98
5	5	37	2100.83	3107.35 (1, 4, 6)	1744.71	230	7182.89
6	5	37	2112.46	3096.1 (1, 4, 6)	1737.3	270	7215.26
7	6	37	2137.64	3115.14 (1, 3, 6)	1767.61	200	7220.39