Results 41 to 50 of about 1,632 (164)

Genetic Algorithm and Mathematical Modelling for Integrated Schedule Design and Fleet Assignment at a Mega-Hub

open access: yesAerospace
Airline networks are becoming increasingly complex, particularly at mega-hub airports characterized by high transit volumes. Effective schedule design and fleet assignment are critical for an airline, as they directly influence passenger connectivity and
Melis Tan Tacoglu   +2 more
doaj   +1 more source

Strategic Fleet Planning Under Carbon Tax and Fuel Price Uncertainty: An Integrated Stochastic Model for Fleet Deployment and Speed Optimization

open access: yesMathematics
This paper presents a two-stage stochastic programming model for the joint optimization of fleet deployment and sailing speed in liner shipping under fuel price volatility and carbon tax uncertainty.
Weilin Sun, Ying Yang, Shuaian Wang
doaj   +1 more source

Optimal Assignment of Mobile Charging Stations for On-the-Move Charging of Electric Vehicles

open access: yesIEEE Open Journal of Intelligent Transportation Systems
Electric vehicles (EVs) are gaining increasing interest due to their zero emissions and relatively reduced running costs. However, the availability of the charging energy is a main concern for many EV users along with the anticipated prolonged charging ...
Zakieh Hamza   +4 more
doaj   +1 more source

A Novel Stochastic Framework for Integrated Airline Operation Planning: Addressing Codeshare Agreements, Overbooking, and Station Purity

open access: yesAerospace
This study presents an integrated optimization framework for fleet assignment, flight scheduling, and aircraft routing under uncertainty, addressing a core challenge in airline operational planning.
Kübra Kızıloğlu, Ümit Sami Sakallı
doaj   +1 more source

Optimization of bike-sharing repositioning operations: A reactive real-time approach

open access: yesEURO Journal on Transportation and Logistics
One of the critical issues in the operation of vehicle-sharing systems is the optimization of the fleet repositioning movements. Repositioning implies the artificial movement of vehicles from places where they accumulate to others in which they are ...
Enrique Jiménez-Meroño   +1 more
doaj   +1 more source

Airline fleet assignment with internal passenger flow reevaluations

open access: yesEURO Journal on Transportation and Logistics, 2014
The airline fleet assignment problem consists of assigning an aircraft type to each flight leg of a flight schedule in order to maximize the airline expected profit. Most existing fleet assignment models (FAMs) use an estimation of the revenues per flight leg that neglects the interdependency between the flight legs and poorly approximates the spill ...
David Lasalle Ialongo, Guy Desaulniers
openaire   +2 more sources

Multi-Agent Path Planning for a Multi-Deep Four-Way Shuttle-Based System

open access: yesLogistics
Background: Four-way shuttle-based storage and retrieval systems (FSS/RSs) have recently emerged as flexible and scalable solutions for high-density warehousing, enabling shuttle movement in four directions and supporting multi-deep dual-access storage ...
Giacomo Lupi   +3 more
doaj   +1 more source

From Potential Routes to Climate Impact: Assessing the Fleet Transition to Hydrogen-Powered Aircraft

open access: yesAerospace
The paper presents a methodology aiming to assess the impact of operations of a short- and medium-range fleet transitioning from jet fuel to hydrogen propulsion, considering the constraint arising from the distribution of hydrogen refueling ...
Gabriele Sirtori, Lorenzo Trainelli
doaj   +1 more source

Solving Dynamic Full-Truckload Vehicle Routing Problem Using an Agent-Based Approach

open access: yesMathematics
In today’s complex and dynamic transportation networks, increasing energy costs and adverse environmental impacts necessitate the efficient transport of goods or raw materials across a network to minimize all related costs through vehicle assignment and ...
Selin Çabuk, Rızvan Erol
doaj   +1 more source

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