The multi-objective generalized consistent vehicle routing problem
The multi-period vehicle routing problem is extended by considering service consistency goals. We analyze the trade-off between arrival time consistency, driver consistency, and routing cost. Our results support companies in finding adequate consistency goals to aim for. A 70 percent better arrival time consistency is achieved by increasing travel time by not more than 3.84 percent, on average. Arrival time consistency improves as a side effect of visiting each customer with a single driver.
vehicle routing service consistency periodic distribution problems multi-objective optimization