hub networks – Optimization Online

Designing Autonomous Aerial Cable Car Networks for Sustainable Urban Logistics

Published: 2026/06/19, Updated: 2026/06/22

Network Optimization, Other Topics, Transportation Aerial cableway systems, Discrete choice experiment, Fixed-charge network design, hub networks, Sustainable last-mile delivery

This paper investigates the emerging autonomous aerial cableway technology to reduce the negative impacts of urban freight transportation. We focus on the infrastructure design problem to minimize the road-transportation externalities, taking pricing, investment costs, and the physical footprint into account. The network design problem is formulated as a mixed-integer linear programming (MILP) model that explicitly … Read more

The uncapacitated p-hub center problem under the existence of zero flows

Published: 2017/05/08

Network Optimization, Transportation airline networks, hub center, hub networks, location

In this study, we consider the special case of the uncapacitated p-hub center problem, where the weight/flow matrix includes 0 entities. In some real life networks, such as airline networks, cargo networks etc., the zero flow might exist between certain demand points. Typically in airline networks, nobody travels from city i to city i. In … Read more