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Tahui Yang – One of the best experts on this subject based on the ideXlab platform.
stochastic Air Freight hub location and flight routes planningApplied Mathematical Modelling, 2009Co-Authors: Tahui YangAbstract:
This paper introduced a stochastic programming model to address the Air Freight hub location and flight routes planning under seasonal demand variations. Most existing approaches to Airline network design problems are restricted to a deterministic environment. However, the demand in the Air Freight market usually varies seasonally. The model is separated into two decision stages. The first stage, which is the decision not affected by randomness, determines the number and the location of hubs. The second stage, which is the decision affected by randomness, determines the flight routes to transport flows from origins to destinations based upon the hub location and realized uncertain scenario. Finally, the real data based on the Air Freight market in Taiwan and China is used to test the proposed model.
Air Freight service network design for stochastic demand2009 IEEE INFORMS International Conference on Service Operations Logistics and Informatics, 2009Co-Authors: Tahui Yang, Chen-cheng ChenAbstract:
This paper introduced a two-stage stochastic model to address the strategic Air Freight network design problems under stochastic demand. Most of existing approaches for the Airline network design problems are restricted to deterministic environment. However, the demand in Airline market usually varies seasonally. The first stage of the proposed model is to determine the number and the location of hubs. The second stage consists of deciding the flight routes to transport flows from origins to destinations in an optimal fashion based upon the hub location and realized uncertain scenario. Finally, the data from Air passenger market in Taiwan and China is used to test the proposed model.
Yixiang Zhang – One of the best experts on this subject based on the ideXlab platform.
integration and consolidation in Air Freight shipment planning an economic and environmental perspectiveJournal of Cleaner Production, 2017Co-Authors: Guanghui Zhou, Yixiang ZhangAbstract:
Abstract Measuring carbon footprint and controlling carbon emissions across a supply chain have gained considerable attention. This study investigates the effects of carbon emissions within the framework of Air Freight integrator shipment planning, with integration and consolidation. A mixed 0–1 Linear Programming (LP) model is formulated to examine the effects of operational adjustments on carbon emissions and cost performance, as well as the effects of carbon emissions regulations on operational decisions. Sensitivity analysis is performed to examine different carbon emissions policies and operational environments. Reducing carbon emissions through operational adjustments is feasible at the expense of some increase in cost. Thus, reducing carbon emissions may be considered an alternative or a supplement to more costly carbon-reducing technologies. Policies implemented to control carbon emissions can affect operational decisions when carbon tax/price is high enough.
Janina Js Scheelhaase – One of the best experts on this subject based on the ideXlab platform.
International and National Political Regulations of Aviation’s Climate Impact and Cost Impacts on Air FreightAdvances in Airline Economics, 2014Co-Authors: Janina Js ScheelhaaseAbstract:
Abstract This chapter provides an overview of the current political regulations on aviation’s climate relevant emissions in Europe, Australia, and New Zealand and of the planned regulations in other parts of the world. In a next step, the cost impacts of most of these regulations on Air Freight will be quantified. This way, the economic impacts of environmental regulations on Air Freight can be estimated.The main results indicate that cost impacts on Air Freight services induced by political measures for the reduction of aviation’s climate relevant emissions turn out to be small. This is true for both local emission charges on nitrous oxide (NO X ) and hydrocarbon (HC) emissions which are in force at a number of European Airports and the European emissions trading scheme for the limitation of CO2 emissions.
Political Regulations of Aviation’s Climate Impact and Cost Impacts on Air Freight, 2013Co-Authors: Janina Js ScheelhaaseAbstract:
Aviation’s impact on climate change is a substantial: Airplanes emit carbon dioxide (CO2) and short-lived species such as nitrogen oxide (NOX) or contrails, all of which are influencing climate change. In addition, the aviation sector is expected to grow significantly in the medium and long term. According to Airbus (2012), global Air Freight traffic is expected to grow at 4.9 per cent annually in the timeframe 2011-2031. Meanwhile, aviation’s carbon dioxide emissions have been regulated in Europe, Australia and New Zealand by emissions trading schemes. Charges on local NOX emissions have been applied at a number of European Airports.
This paper investigates the current political regulations on aviation’s climate relevant emissions in the world and their impacts on Air Freight costs. Results indicate that cost impacts on Freight induced by political measures are small. This is true for both local NOX charges and the European emissions trading scheme. For instance, for an A330-200 total Airport charges are raised by the NOX emission charge by 3.97 per cent respectively €216.66 in absolute terms per landing at the maximum. If a 50:50 cost allocation between passengers and bellyhold cargo is assumed, the cargo costs are increased by €0.0054 per kg.