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Notícias

Palestra: ''How to design routes for 500 vessels in liner shipping?

15 de outubro | 18h00 | Sala de Atos do DEGI (L202A ) | FEUP

Abstract:

The shipping industry is responsible for around 2.2% of the CO2 emission  in the world, and a substantial part of the NOx and SOx emission.

Decreasing freight rates and tight regulations for emission makes it difficult to operate liner shipping economically viable. It is therefore necessary to frequently redesign the network to meet customer demands while minimizing the operational costs.

Given a fleet of container vessels and a set of demands to transport,  the liner shipping network design problem asks to design a set of scheduled routes, deploy vessels of appropriate size to the routes and decide the speed on each leg, such that all demands can be transported within some pre-defined time-limits. Real-life instanses may involve 20.000 demands and 500 vessels
pushing the limits of solvers.

In this talk we give an overview of recent solution methods, spanning from branch-and-cut methods, to matheuristics and backbone-based methods. Results from the LINER-LIB benchmark suite will be reported. In the end of the presentation, some parallels will be drawn to the related line planning problem in public transportation.


David Pisinger:

David Pisinger, is professor in operations research at DTU Management Engineering, and adjoint professor at DIKU, University of Copenhagen. His research interests include Maritime optimization, Vehicle Routing, Railway optimization, Energy models, and Packing and cutting problems. He has been leading several research projects in maritime logistics, railway optimization, and packing and loading.

David received the Hedorfs Fonds prize for Transport Research 2013, and received the Teaching Prize 2016 at DTU Management. Over the years he has supervised more than 20 PhD students. Two of these have received the VeRoLog dissertation prize, and one has received the TSL dissertation prize.

Having a background in Knapsack Problems, David Pisinger can be recognized by always wearing a knapsack.


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