A very important concern of physical distribution managers is deciding the location of warehouses ( distribution centres or depots ). It is, therefore, not surprising that this location problem has been receiving considerable research attention and indeed, some impact has been made in actual...

The problem considered in this paper is that of determining the order in which customers will be visited by delivery/pick‐up vehicles. Typical examples of this problem are the routing questions faced by the Post Office in making local deliveries, industrial laundry service companies and...