The Warehouse Location Problem concerns finding the best location in which to place warehouses to supply existing stores. This problem accounts for the cost of building each warehouse, as well as the cost of lorries travelling between warehouses and stores.
For a more precise definition of the problem, see here.
The Transhipment Hub Problem concerns the costs and goods distribution requirements around a network of warehouses, transhipment hubs and stores.
Goods originate from a warehouse and must be processed in a transhipment hub before being transported to a store. Thus, vehicles must collect goods from a warehouse, drive them to a transhipment hub (where the goods may, for example, undergo some processing), and then drive the goods to a variety of stores.
Each warehouse has a specified stock level (number of items it holds) and each store has a certain demand (number of items it requires). The solver must calculate how to split up the distribution such that these constraints are respected.
Note that the Transhipment Hub Problem typically takes significantly longer to solve than the Warehouse Location Problem.
Of course, “warehouses”, “transhipment hubs” and “stores” could be seen as other entities, such as factories, final assembly points and customers.
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A dataset containing the locations of UK supermarkets is used for problem auto-generation.
Supermarkets in this dataset are divided into four categories:
For the purposes of dataset generation, the supermarkets are used as follows:
The problem type is currently set to .Select how many of each category of building you would like to be placed on the map.
This location is too far from a routable point on the road network to place a building.
This location is over 100m from a routable point on the road network. Would you like the new building's location to be snapped to the closest routable point?
This problem cannot be run yet because it is not fully defined. Please add at least one warehouse and at least one store and try again.
This problem cannot be run yet because it is not fully defined. Please add at least one warehouse, one store and one transhipment hub and try again.
Data was successfully auto-generated according to the parameters you requested. You can now click the 'Map' tab and see the problem that has been generated.
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