A Hybrid Method for Modeling and Solving Supply Chain Optimization Problems with Soft and Logical Constraints

Table 6

Additional constraints for MILP_T.

Constraints	Description
	Narrowing the size of the transport unit domain from the bottom
	Narrowing the size of the transport unit domain from the top
	The minimum number of all transport unit types necessary for the shipment from the factory to the distributors/distribution centers
	The minimum number of all transport unit types necessary for the shipment from the distributors/distribution centers to customers
	The minimum number of transportation units in routes
	The number of working distributors/distribution centers