
173A Schedule-Based Formulation fortheCyclic Inventory Routing Problem
6.6.1 Details of the Test Instances
Our test instances are provided by an industrial gases manufacturer. We
have a single eet of 23-ton vehicles. The inventory capacities at customers
range from 7 tons to 30 tons. The inventory cost at any customer is 0. The
vehicle speed is assume to be 50 kilometers per hour constantly, a vehicle can
work at most 12 hours every day, and a vehicle cannot serve more than ve
customers per day. We assume the unload time at each customer is 1 hour,
and the minimum delivery amount to any customer has to be no less than
2tons. We try to bu ...