Aviation Integrated Modelling

AIM Home


Modelling Approach







Core Team

  • Prof. Andreas Schäfer (UCL, Air transportation systems)
  • Dr. Olivier Dessens (UCL, Climate science)
  • Dr. Lynnette Dray (UCL, Model integration and airline fleets)
  • Dr. Maria Kamargianni (UCL, Discrete choice modelling)
  • Dr. Aidan O'Sullivan (UCL, Airline networks and statistics)
  • Philip Krammer (UCL, Economics)
  • Bojun Wang (UCL, Airline behaviour)

Affiliated Researchers

  • Prof. Steven Barrett (MIT, Environmental impacts of aviation)
  • Dr. Antony Evans (UC Santa Cruz, Airline behaviour)
  • Dr. Tom Reynolds (MIT Lincoln Laboratory, Flight routing and airspace modelling)


  • Dr. Zia Wadud (Leeds University, Economic impacts of aviation)
  • Prof. Rex Britter (MIT, Environmental Fluid Dynamics)
  • Prof. Bill Dawes (Cambridge University, Aeronautical Engineering)
  • Dr. Marcus Köhler (Cambridge University, Global Climate Module)
  • Dr. Cesare Hall (Cambridge University, Turbomachinery)
  • Prof. Peter Haynes (Cambridge University, Atmospheric science)
  • Prof. Roderic Jones (Cambridge University, Atmospheric science)
  • Prof. John Pyle (Cambridge University, Atmospheric chemistry)
  • Dr. Helen Rogers (Atmospheric modelling)
  • Dr. Maria Vera-Morales (Aircraft technology)

Bios (click on name for individual homepage where available)

Prof. Andreas Schäfer
Andreas W. Schäfer is a Professor in Energy and Transport at University College London. Prior to this position, he held appointments at the International Institute for Applied Systems Analysis (IIASA), the Massachusetts Institute of Technology (MIT), the University of Cambridge, and Stanford University. He holds a MSc in Aerospace Engineering and a PhD in Energy Economics, both from the University of Stuttgart, Germany. He is lead author of “Transportation in a Climate-Constrained World” (MIT Press, 2009).

Dr. Olivier Dessens
Olivier Dessens is a senior Research Associate at University College, London. His research focus is in the interaction between energy, economy and climate systems (low carbon policies, damages from climate change). Olivier’s expertise includes mathematical modelling to evaluate the impact of present and future anthropogenic emissions on air quality, transboundary pollution and climate with a long specialisation in transport emission (aviation, shipping and road). Within the UCL-Energy he contributes to the support of the Integrated Assessment Modelling capabilities such as the global energy systems TIAM-UCL.

Dr. Lynnette Dray
is a senior Research Associate at University College, London. Her research interests include transportation demand modelling, policy assessment, vehicle fleets and fleet turnover and model system integration. She is lead modeller in both the AIM and TOSCA (Technology Opportunities and Strategies toward Climate-friendly transport) projects, and led the Policy Analysis work package of the TOSCA project; other recent work includes the Teamplay and MetaCDM EC FP7 projects on European aviation modelling and disruptive events, as well as emissions modelling of global shipping for the UCL shipping group.

Dr. Aidan O'Sullivan
graduated with a PhD in Statistics from the department of Mathematics in Imperial College London in 2013. His thesis focused on the use of latent variable models in a Bayesian framework with particular interest in behavioural and network data. Following his PhD he worked as a data scientist with the customer science company Dunnhumby analysing large datasets of mobile phone and club card data before joining the Intelligent Transport Systems group in MIT as a PostDoc. His work here focused on the use of non-parametric regression methods to make predictions for non-linear variables such as the duration of traffic accidents and bus arrival times. This work was continued and integrated into a traffic simulator for the city of Singapore during a subsequent Postdoc in the Future Urban Mobility group in the Singapore MIT Alliance for Research and Technology. He is originally from Cork, Ireland and holds a B.Eng in Electrical Engineering from University College Cork.

Philip Krammer
Philip is a doctoral researcher at UCL analysing changes in real income associated with a carbon emissions pricing scheme in international aviation and maritime transport. Large parts of his PhD were completed while visiting the Department of Economics at Yale University. He has an MPhil in Engineering for Sustainable Development from the University of Cambridge and previously worked as a business developer at Siemens and as an aircraft design engineer on Airbus projects and at the German Aerospace Center (DLR).

Bojun Wang
Bojun is a PhD student at UCL Energy Institute, focusing on airline decision making in the global air transport system, particularly with respect to airline airfare modelling. He has a MSc in Economics and Policy of Energy and the Environment also from UCL Energy Institute, and previously worked as an energy and environmental policy analyst at China Policy, a Beijing-based research and advisory company, and an intern researcher at the Third Generation Environmentalism (E3G) London office, the second best environment and energy think tank in the UK.