Extensions of VRP could be?

Return of products Pick-up and delivery (Pick something that’s required from one location or more and then to the customer) Time windows, if there are specific times of delivery to the customer or the depot. Arc routing, if you have to visit every arc/path at least once instead of every node/customer. Split delivery Multiple periods (produkten ska levereras nån gång i veckan exempelvis) Dynamic VRP (kombinera efterfrågan med efterfrågan i realtid, ex vi ska leverera 8 i veckan men dem efterfrågar 10 helt plötsligt)