Multi-period Location-Routing-Inventory Problem for Reverse Logistics with Collector Managed Inventory

To enhance the operational performance of reverse logistics systems,the joint decision of locating recycle centers,scheduling routes of collection vehicles,and controlling the two-echelon inventory at recycle centers and collection sites was considered from the point view of integrated optimization.A mixed integer programming model for multi-period location-routing-inventory problem(LRIP) in reverse logistics systems based on collector managed inventory(CMI) was developed.And a two-phase heuristic algorithm using location-allocation first,route-second approach was proposed.The results of a numerical example show that the total cost of LRIP under CMI is lower than that under non-CMI by 28.05%.