Risk-Aware Site Selection of Transshipment Nodes for Low-Altitude Logistics Route Networks

Changke Shao; Zehua Zhang

doi:10.54097/w7ng7726

Authors

Changke Shao School of Emergency Management and Safety Engineering, North China University of Science and Technology, Tangshan 063000, China
Zehua Zhang School of Emergency Management and Safety Engineering, North China University of Science and Technology, Tangshan 063000, China

DOI:

https://doi.org/10.54097/w7ng7726

Keywords:

UAV; logistics transportation; transshipment node site selection; SOM algorithm.

Abstract

To balance logistics efficiency and ground safety in urban low-altitude logistics, this paper proposes a risk-aware SOM-based transshipment node siting method. A 10 m static ground risk map is built to screen candidate nodes, and risk suppression and risk-gradient repulsion terms are embedded into the SOM weight update so nodes migrate to low-risk areas while fitting demand. In a 5 km x 5 km Tangshan area, at λ = 0.8 and k = 25, the average service distance rises only 1.55% (254.23 m to 258.16 m), while point risk, 50 m buffer risk, and maximum node risk fall by 17.9%, 16.5%, and 17.1%.

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