Blar i NTNU Open på forfatter "Fagerholt, Kjetil"
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Analysing the modal shift from road-based to coastal shipping-based distribution – a case study of outbound automotive logistics in India
Chandra, Saurabh; Christiansen, Marielle; Fagerholt, Kjetil (Peer reviewed; Journal article, 2019)This paper analyses the modal shift from a primary road-based to coastal shipping-based freight distribution. A mathematical model is developed to optimize the coastal shipping route planning under a multimodal distribution ... -
Analyzing different designs of liner shipping feeder networks: a case study
Msakni, Mohamed Kais; Fagerholt, Kjetil; Meisel, Frank; Lindstad, Elizabeth (Peer reviewed; Journal article, 2020)This paper proposes different network structures for a real liner shipping company to serve demands between Norwegian and European continental ports. The current practice of the shipping company deploys a feeder network ... -
Analyzing Ridesharing Systems with Flexible Riders and Fixed Bus Lines: A Case Study from Norway
Gundersen, Vegard Holm; Tvedt, Erik Thinn (Master thesis, 2024)Som følge av ny teknologi og økt forbindelse har samkjøring vokst frem som et lovende transportalternativ som kan redusere kø samt senke klimagassutslipp og luftforurensning. Den enkelte reisende kan og tjene på å delta i ... -
Analyzing the Impact of Speed Optimization in Maritime Inventory Routing
Bergeland, Tobias Kolstø; Broback, Per Olav (Master thesis, 2024)Denne oppgaven tar for seg maritim ruting og lagerstyring med hastighetsoptimalisering (Maritime Inventory Routing Problem with Speed Optimization - MIRPSO), med fokus på å optimalisere fartøyenes ruter, tidsplaner og ... -
The Aquaculture Service Vessel Routing Problem with Time Dependent Travel Times and Synchronization Constraints
Lianes, Ingeborg Margrete; Noreng, Maren Theisen; Fagerholt, Kjetil; Slette, Hans Tobias; Meisel, Frank (Journal article; Peer reviewed, 2021)This paper studies the Aquaculture Service Vessel Routing Problem (ASVRP), which is an important planning problem arising in sea-based fish farming. In the ASVRP, there is a set of fish farms located in the sea, where each ... -
Benchmark Suite for Industrial and Tramp Ship Routing and Scheduling Problems
Hemmati, Ahmad; Hvattum, Lars Magnus; Fagerholt, Kjetil; Norstad, Inge (Journal article; Peer reviewed, 2014)This paper considers a class of cargo ship routing and scheduling problems from industrial and tramp shipping and presents a wide range of benchmark instances that have been created to represent realistic planning problems ... -
Benefits and Barriers using Operations Research based Decision Support Software in Dry Bulk Chartering
Garnås, Sindre Joakim (Master thesis, 2014)The objective of this thesis is to address the benefits and barriers in using operations research (OR) based decision support software (DSS) in the evaluation of cargo and vessel fixtures within dry bulk chartering. The ... -
Bi-objective offshore supply vessel planning with costs and persistence objectives
Borthen, Thomas; Loennechen, Henrik; Fagerholt, Kjetil; Wang, Xin; Vidal, Thibault (Journal article; Peer reviewed, 2019)This paper introduces a bi-objective model for the offshore supply vessel planning problem (SVPP) in the oil & gas industry. The SVPP consists of determining a new weekly plan for sailing the platform supply vessels whenever ... -
Can autonomous ships help short-sea shipping become more cost-efficient?
Msakni, Mohamed Kais; Akbar, Abeera; Aasen, Anna Kristine Almestad; Fagerholt, Kjetil; Meisel, Frank; Lindstad, Elizabeth (Peer reviewed; Journal article, 2020)There is a strong political focus on moving cargo transportation from trucks to ships to reduce environmental emissions and road congestion. We study how the introduction of a future generation of autonomous ships can be ... -
A column generation heuristic for the dynamic bicycle rebalancing problem
Gleditsch, Marte; Kristine, Hagen; Bakker, Steffen J.; Andersson, Henrik; Fagerholt, Kjetil (Peer reviewed; Journal article, 2022)Public bicycle sharing systems are becoming an essential part of the future urban mobility system. Real-time monitoring of the system state through sensors on bicycles and/or stations gives possibilities for advanced ... -
Combined maritime fleet deployment and inventory management with port visit flexibility in roll-on roll-off shipping
Dong, Bo; Christiansen, Marielle; Fagerholt, Kjetil; Bektas, Tolga (Peer reviewed; Journal article, 2020)We consider a combined fleet deployment and inventory management problem in Roll-on Roll-off shipping. Along given trade routes there are ports with inventories that should be kept within their limits. Current planning ... -
Combining Optimization and Simulation for Designing a Robust Short-sea Feeder Network
Medbøen, Carl Axel Benjamin; Holm, Magnus Bolstad; Msakni, Mohamed Kais; Fagerholt, Kjetil; Schütz, Peter (Peer reviewed; Journal article, 2020)Here we study a short-sea feeder network design problem based on mother and daughter vessels. The main feature of the studied system is performing transshipment of cargo between mother and daughter vessels at appropriate ... -
Controlling Risk in Maritime Fleet Renewal - A Stochastic Programming Approach
Skålnes, Jørgen (Master thesis, 2017)This thesis considers the Maritime Fleet Renewal Problem (MFRP) including the risk of insolvency. The MFRP is a strategic problem with a planning horizon of several years. The literature review shows that relatively little ... -
Cost-effective planning and abatement costs of battery electric passenger vessel services
Havre, Håkon; Lien, Ulrik; Ness, Mattias Myklebust; Fagerholt, Kjetil; Rødseth, Kenneth Løvold (Peer reviewed; Journal article, 2022)This paper analyzes the energy replacement potential for high-speed passenger vessels. Emphasis is on whether better planning of services can mitigate technical and economic barriers to zero emission transport. A novel ... -
Cost-Emission Relations for Maritime Logistics Support in Aquaculture
Slette, Hans Tobias; Asbjørnslett, Bjørn Egil; Fagerholt, Kjetil (Journal article; Peer reviewed, 2019)This paper presents a method for evaluation of the economic cost of reducing the emissions from a fleet operating in the aquaculture industry. The method accounts for the fact that different fleet compositions perform ... -
A decomposition solution approach to the troops-to-tasks assignment in military peacekeeping operations
Chaudry, Nadia; Vermedal, Ingunn; Fagerholt, Kjetil; Fauske, Maria Fleischer; Stålhane, Magnus (Peer reviewed; Journal article, 2019)This paper considers the Peacekeeping Troops-to-Tasks Problem (PTTP). The PTTP deals with assigning battlegroup resources to a set of tasks associated with a given peacekeeping mission. The tasks may be spread across several ... -
Design of a sustainable maritime multi-modal distribution network – case study from automotive logistics
Dong, Bo; Christiansen, Marielle; Fagerholt, Kjetil; Chandra, Saurabh (Peer reviewed; Journal article, 2020)Multi-modal transportation takes advantage of multiple transport modes and can be an effective way to ease the negative environmental effects of freight transportation. This paper addresses a multi-modal distribution network ... -
Designing Pipeline Networks for Carbon Capture and Storage of CO2-sources in Germany: An Industry Perspective
Bennæs, Anders; Skogset, Martin; Svorkdal, Tormod; Fagerholt, Kjetil; Herlicka, Lisa; Meisel, Frank; Rickels, Wilfried (Peer reviewed; Journal article, 2023) -
The Dynamic Electric Carsharing Relocation Problem
Hellem, Simen; Julsvoll, Carl Andreas; Moan, Magnus; Andersson, Henrik; Fagerholt, Kjetil; Pantuso, Giovanni (Peer reviewed; Journal article, 2021)This article addresses a relocation and recharging problem faced by modern carsharing operators who manage a fleet of electric vehicles. As customers utilize the fleet, batteries are depleted and vehicles are possibly left ... -
Early-stage real estate development using nonlinear optimization
Bratsberg, Nikolai Mathisen; Mellbye, Anne-Marie (Master thesis, 2018)Changed later