Improving only one environmental issue, such as noise, may sometimes worsen another, such as emissions. Similarly, mitigating the environmental impact of transportation may limit safety or capacity, especially for the aviation sector. ENVISA assesses the environmental and economic impact of present and future scenarios through trade-off studies that take into account multiple domains and scales (local and global).

Our trade-off expertise includes:

• developing harmonised databases for noise, emission and economics modelling
• maintaining large-scale traffic databases
• assessing noise, local air quality and global emission simultaneously
• analysing environmental costs & benefits

With our ISA Group partners the list extends to capacity analyses for aviation. The projects below provide details about some of our trade-offs activities:

Transport Corridor Europe Caucasus Asia – TRACECA (2009-2012)

ENVISA is in charge of the environmental reporting and training activities within the European Commission's project TRACECA, which assesses safety, security and environment in Europe's neighbouring countries.
Read more…

International Civil Aviation Organisation (ICAO) / CAEP Support (2006-2009)

ENVISA is part of the US and European group of modelling experts in charge of assisting ICAO’s Committee on Aviation Environmental Protection (CAEP) in setting its goals and future aircraft/engine stringencies.
Read more…

World Interconnected Sources Database of Operational Movements – WISDOM (2007-2008)

ENVISA was mandated to improve the quality of EUROCONTROL’s WISDOM database of global flight movements and trajectories, as well as design interfaces with Geographic Information Systems (GIS).
Read more…

Environmental Impact Assessment of CDA (2005-2006)

ENVISA conducted trade-off analyses of noise vs. emissions for the Continuous Descent Approach (CDA) trials at three European airports: Manchester, Bucharest and Stockholm.
Read more…

Study on a Basic Economic and Environmental Modelling System for Aviation – EEMA (2006-2007)

ENVISA designed and produced a cross-domain environmental and economic database for the European Aviation Safety Agency (EASA), to be used for European-wide modelling activities.
Read more…