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Chinese Journal of Management Science ›› 2026, Vol. 34 ›› Issue (1): 234-243.doi: 10.16381/j.cnki.issn1003-207x.2023.0577

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Location-routing Problem Considering Psychological Cost in Emergency Logistics

Lifang Peng, Nannan Zhao()   

  1. School of Management,Xiamen University,Xiamen 361005,China
  • Received:2023-04-07 Revised:2023-09-07 Online:2026-01-25 Published:2026-01-29
  • Contact: Nannan Zhao E-mail:zhaonannan@stu.xmu.edu.cn

Abstract:

With the increasing risks of geological disasters, large-scale infectious diseases, and climate change, humanitarian rescue efforts have risen significantly. To reduce disaster losses, scientific emergency facility location and material distribution system optimization are crucial. Additionally, attention must be given to the psychological and mental impact on affected populations post-disaster. In emergency logistics management, unmanned aerial vehicles (UAVs) have become a focus due to their efficiency, flexibility, low energy consumption, and minimal road occupancy advantages. Integrating trucks and UAVs for joint delivery can effectively address traditional distribution challenges and “last-mile” risks. This new logistics operation model poses significant theoretical and practical challenges to vehicle routing problems, gaining more scholarly attention.The Location-Routing Problem with Drone (LRPD) is a novel optimization problem that requires solving warehouse location, UAV and vehicle path decisions, as well as addressing synchronization issues in UAV and vehicle separation and convergence operations. A demand-splitting truck-UAV collaborative location-routing model is established, including: (i) developing a location-routing model allowing demand splitting and truck-UAV joint delivery to minimize delivery time, system economic costs, and affected population's psychological costs; (ii) proposing an improved Non-Dominated Sorting Genetic Algorithm (NSGA-II) with a local search operator and verifying its performance through a set of numerical experiments.Through constructing the m-SDLRPD test set, the computational performance and speed of the ENSGA-II algorithm are tested. The experimental results demonstrate that the hybrid multi-objective evolutionary algorithm with dedicated local search operators possesses good solution quality and algorithmic performance. Comparing m-SDLRPD with the truck-only mode, it is found that UAV application significantly enhances material delivery efficiency. Sensitivity analysis of UAV parameters reveals that batch delivery is more effective in reducing travel time compared to increasing UAV payload capacity. An application example of Shanghai's material distribution illustrates the practical use of the proposed model and algorithm.

Key words: emergency logistics, truck-drone, location-routing problem, psychological cost

CLC Number: