Banca de DEFESA: IZABELA MARQUES DE OLIVEIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : IZABELA MARQUES DE OLIVEIRA
DATE: 20/03/2023
TIME: 14:30
LOCAL: Campus Nova Gameleira
TITLE:

**

KEY WORDS:

Complex networks. Multiplex networks. Multiplex efficiency index. Efficiency. Diversity of connections. Air transportation. Diffusion in air transportation networks.

PAGES: 127
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:

Air transportation remains the best option to connect distant regions and support world social and economic development, despite environmental challenges. Brazil depends strongly in this mode of transportation due to its continental dimensions. In this work, we conducted a study using the multiplex approach of complex networks to analyze the air transport network of Brazilian passengers, BATMN. In this context, we create the multiplex efficiency index (MEI) and its versions for targeted and/or weighted networks, which allow to quantify the level of connection heterogeneity of a multiplex network on a scale of 0 to 1, considering the characteristics of direction and importance level of edges, being appropriate for research in transportation networks. We used the MEI to evaluate the diversification of routes of airlines in Brazil between 2010 and 2021, a period of occurrence of major events in the country. We analyzed the influence of some of these events on network efficiency, such as the FIFA World Cup in 2014 and the Rio Olympic Games in 2016, as well as other sector changes, including the merger between airlines, airport privatization, the closure of operations of an important air carrier and COVID-19 pandemic. In addition, we investigated whether the diversification of routes affected the prices of air tickets in Brazil. Additionally, through a recently introduced methodology in the literature, we examined the network’s diffusion capacity and observed the relative gain that occurred in the diffusion of the air transportation system when the flight connections between different airlines are considered, outlining a scenario possible partnerships between airlines. The evaluations carried out in this work provide new and significant information about the passenger air transportation network in Brazil, contributing to optimize the offer of this type of transportation in the country and, consequently, reduce the costs involved. In addition, the proposed methodology allows not only a differentiated analysis of air transportation networks, but also the quantification of the efficiency of multiplex networks in general.

COMMITTEE MEMBERS:
Presidente - ALLBENS ATMAN PICARDI FARIA
Interno - ANTONIO PAULO BAETA SCARPELLI - CEFET-MG
Interno - ARTHUR RODRIGO BOSCO DE MAGALHAES
Externa à Instituição - BRUNA AMIN GONÇALVES
Externa à Instituição - LAURA CORINA CARPI - UFMG
Externo à Instituição - TIAGO ALVES SCHIEBER FARIA - UFMG