* the first two do need to return to depot
*/
Builder vehicleBuilder1 = VehicleImpl.Builder.newInstance("vehicles@[10,10]");
vehicleBuilder1.setStartLocationCoordinate(Coordinate.newInstance(10, 10)).setReturnToDepot(false);
vehicleBuilder1.setType(vehicleType);
VehicleImpl vehicle1 = vehicleBuilder1.build();
Builder vehicleBuilder2 = VehicleImpl.Builder.newInstance("vehicles@[30,30]");
vehicleBuilder2.setStartLocationCoordinate(Coordinate.newInstance(30, 30)).setReturnToDepot(false);
vehicleBuilder2.setType(vehicleType);
VehicleImpl vehicle2 = vehicleBuilder2.build();