Problem variant

Acronym	VRPB
Title	Vehicle Routing Problem With Backhauls
Criterion	MIN
Description	The vehicle routing problem with backhauls includes two types of customers: linehaul customers, which require deliveries, and backhaul customers, which need pick-ups. In any route, the linehaul customers must precede the backhaul customers. Moreover, routes consisting of backhaul customers only are prohibited.

Datasets	Goetschalckx and Jacobs-Blecha 1989 Toth and Vigo 1999 Queiroga et al. 2019
References	Goetschalckx and Jacobs-Blecha 1989 | The Vehicle Routing Problem With Backhauls Queiroga et al. 2019 | On the exact solution of vehicle routing with backhauls Toth and Vigo 1999 | A heuristic algorithm for the symmetric and asymmetric vehicle routing problems with backhauls