Event Details

Mahdi Bashiri from the University of Leeds will present a seminar to the Management Science Department

Abstract: Climate change is one of the most important concerns globally, and countries need to improve their transportation infrastructure to handle flows with the least air pollution. In specific cities and regions, carbon emissions may cause in future many issues for people and societies. Although transportation hubs are very helpful in the reduction of transportation costs, they may cause an increase in carbon emissions in some regions, leading to long-term environmental problems. Two approaches/solutions are discussed in this presentation to address the issue in hub transportation networks, the first one will focus on the carbon policies and the other solution concentrates on the network design. First, several carbon regulations including carbon tax policy, carbon cap-and-trade policy, carbon cap policy, and carbon offset policy are incorporated in the mathematical model of a two-stage stochastic programming. In the proposed models, an enhanced sample average approximation method was used to obtain a suitable number of scenarios. Computational experiments showed that all of the carbon regulations could reduce overall carbon emissions. Among carbon policies, the carbon cap and trade policy could achieve better economic results for the transportation sector. To achieve green sustainability in a hub network structure, the network also was designed in a way to achieve sustainability targets focusing on carbon emissions. The numerical analyses confirm that designed network by the proposed model also helps achieving green sustainability in a hub transportation network