Third Party Risk Around Airports Lisbon Airport Case Study

Duarte Ferro Lopes

Key information

Authors:

Supervisors:

Alexandre Bacelar Gonçalves (Alexandre Bacelar Gonçalves); Pedro Da Graça Tavares Álvares Serrão (Pedro Da Graça Tavares Álvares Serrão)

Published in

28 de novembro de 2024

Abstract

Third Party Risk is defined as the risk posed by aircraft accidents to the health and safety of persons on the ground. Despite Third Party Risks not being considered an issue as important as the noise and the air quality, they constitute one of the main environmental impacts created by the airports and the air traffic. Thus, understanding them better promotes an informed decision-making process by the authorities with regard to the Third Party Risk policy. As air traffic aggregates over the area around an airport and most accidents happen during the takeoff and landing phases, Lisbon, whose airport is located within an urban area, is specially exposed to the impact of Third Party Risks. This motivates the assessment of the Third Party Risks around Lisbon airport. This dissertation intends, then, to identify Third Party Risk models and to choose the one that fits the Lisbon scenario the best. The selected model is used to determine the Ground Potential Risk (GPR), an indicator of the Individual Risk, over the Lisbon Metropolitan Area (LMA), resorting to Geographic Information System tools. A method to calculate the Societal Risk in the LMA is suggested as well. The results confirm that the highest GPR values are concentrated close to Lisbon airport. Other higher risk regions are located near Cascais airport and the Portuguese Air Force’s Air Bases Nº1 and Nº6. It was also observed that the higher risk regions surround the approach routes to Lisbon airport.