Issue: 2023/Vol.33/No.4, Pages 119-131
SIMULTANEOUS PICKUP AND DELIVERY MODEL SUGGESTION FOR PERSONNEL TRANSPORTATION IN COVID-19 PANDEMIC CONDITIONS
Erkan Köse 
, Ahsen Korkmazer
, Danışment Vural , Gökçe Gül Gökceoğlu, Pınar Şavlı
Cite as: E. Köse, A. Korkmazer, D. Vural, G. G. Gökceoğlu, P. Şavlı. Simultaneous pickup and delivery model suggestion for personnel transportation in COVID-19 pandemic conditions. Operations Research and Decisions 2023: 33(4), 119-131. DOI 10.37190/ord230407
Abstract
The impact of COVID-19 on the transportation costs of a large-scale company has been examined. Before the pandemic, shift personnel were transported to the factory by shuttles, and after a quick shift change, other shift personnel were transported back to their homes. However, with the implementation of laws mandating the reduction of shuttle seat capacities, transportation costs have risen significantly. To address this issue, a new simultaneous pickup and delivery model is proposed as an alternative to the separate transportation of shift workers. The results of this study indicate that the proposed model provides a substantial advantage in terms of both the number of vehicles used and the total distance traveled, leading to a significant reduction in costs. This research underscores the importance of effective operations research practices for the profitability of companies, particularly in extraordinary circumstances such as the COVID-19 pandemic.
Keywords: optimization, mathematical modeling, vehicle routing problem, simultaneous pickup problem, delivery problem
Received: 23 September 2022 Accepted: 17 August 2023
Published online: 22 December 2023