Print Email Facebook Twitter Optimization of integrated production and distribution planning in supply chain of an online grocer Title Optimization of integrated production and distribution planning in supply chain of an online grocer Author Braemer, Arjan (TU Delft Mechanical, Maritime and Materials Engineering) Contributor Atasoy, B. (mentor) Polinder, H. (graduation committee) van Tatenhove, Joris (mentor) Degree granting institution Delft University of Technology Programme Marine Technology | Transport Engineering and Logistics Date 2019-03-27 Abstract This research presents an Integrated Production and Distribution Scheduling (IPDS) optimization problem in which the total transportation costs for an online grocer have to be minimized. The production refers to the preparation of orders at the production facility and the distribution is related to the transportation from the production facilities to the hubs in the urban areas. For the solution of this problem, two algorithms have been constructed: a heuristic approach that considers all possible combinations of hubs to be visited and a commercial solver for the MILP formulation. These algorithms are evaluated in comparison to a benchmark heuristic, which is the current heuristic used at Picnic. The proposed heuristic performs slightly worse for small instances and performs better for large instances than the benchmark heuristic. The MILP based algorithm with the current set-up is too slow for operational usage. However, as it provides an improvement of 9.1% less vehicles used and 2.5% less vehicle hours used as compared to the benchmark heuristic for tiny instances, further research in this direction appears to be promising. Subject Online grocerIntegrated Production and Distribution Scheduling ProblemIPDSVehicle Routing Problem with Time Windows To reference this document use: http://resolver.tudelft.nl/uuid:df8a35b9-a49c-4ea2-b98a-4a301aeb4c24 Embargo date 2021-03-27 Part of collection Student theses Document type master thesis Rights © 2019 Arjan Braemer Files PDF Graduation_Arjan_reposito ... rsion_.pdf 3.83 MB Close viewer /islandora/object/uuid:df8a35b9-a49c-4ea2-b98a-4a301aeb4c24/datastream/OBJ/view