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Delft University of Technology

1. Cederhout, Q. (author). The impact on the final delivery schedule of different procedures that handle arriving customers during route optimization in a real-time Dynamic Time Slot Management system.

Degree: 2020, Delft University of Technology

Dynamic Time Slot Management (DTSM) is a system often used in online retail to manage the delivery of goods to customers. With DTSM customers arrive over time and place orders. They get presented with a set of time slots and the customer picks the time slot in which he wants the goods to be delivered to his home. A DTSM system creates a time slot offer for the customers based on the current delivery schedule, which is a solution to a Vehicle Routing Problem (VRP). Each accepted customer is added to this delivery schedule. This delivery schedule gets periodically optimized by an optimization algorithm. During this optimization, new customers may arrive and receive time slots based on the non-optimized schedule, which causes a discontinuity in the system. In this thesis, five different procedures have been created that deal with this problem. The impact of the different procedures is analyzed by simulating the DTSM system and comparing the final delivery schedules. Solving the problem by leaving out the optimization or insertion step of the DTSM system is outperformed by all procedures. Procedures that barely make use of the optimized schedule accept the least number of customers. The procedure that delays customers, which makes it similar to the theoretical setting, accepts the most customers, but this comes at the cost of poor customer service. The most promising results are found by the procedure that inserts new customers into the optimized schedule. Enhancing this procedure with a merge algorithm improves the performance slightly.

Applied Mathematics

Advisors/Committee Members: de Oliveira Filho, Fernando (mentor), Gijswijt, Dion (graduation committee), Keijzer, Marleen (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: DTSM; Dynamic; Time slot; Real-time; VRP; optimization

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Cederhout, Q. (. (2020). The impact on the final delivery schedule of different procedures that handle arriving customers during route optimization in a real-time Dynamic Time Slot Management system. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:08b61211-bfd7-4630-81a0-2b5595a69f0c

Chicago Manual of Style (16th Edition):

Cederhout, Q (author). “The impact on the final delivery schedule of different procedures that handle arriving customers during route optimization in a real-time Dynamic Time Slot Management system.” 2020. Masters Thesis, Delft University of Technology. Accessed November 26, 2020. http://resolver.tudelft.nl/uuid:08b61211-bfd7-4630-81a0-2b5595a69f0c.

MLA Handbook (7th Edition):

Cederhout, Q (author). “The impact on the final delivery schedule of different procedures that handle arriving customers during route optimization in a real-time Dynamic Time Slot Management system.” 2020. Web. 26 Nov 2020.

Vancouver:

Cederhout Q(. The impact on the final delivery schedule of different procedures that handle arriving customers during route optimization in a real-time Dynamic Time Slot Management system. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2020 Nov 26]. Available from: http://resolver.tudelft.nl/uuid:08b61211-bfd7-4630-81a0-2b5595a69f0c.

Council of Science Editors:

Cederhout Q(. The impact on the final delivery schedule of different procedures that handle arriving customers during route optimization in a real-time Dynamic Time Slot Management system. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:08b61211-bfd7-4630-81a0-2b5595a69f0c

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