News
TRACECA ETS Seminar
ENVISA organised the Aviation ETS and Climate Change Policy Seminar for TRACECA project on December 14-15 in Istanbul. Read more...
Clean Sky SGO ITD
ENVISA is on track to take part to joint research projects for the Clean Sky SGO (Systems for Green Operations) ITD starting early 2010. More details soon...
EUROCONTROL's INVENTAIR
ENVISA was mandated by EUROCONTROL to create a website dedicated to global aircraft emissions. The site will allow registered users to download and visualise worldwide emission grids based on WISDOM flight movement database.
European Harmonised Aircraft Noise Contour Modelling Environment – ENHANCE
Dates: 2002 - 2005
Partners: ISA Software, ADP, DSNA, BIAC, NLR, ...
Links: ISA Software website, ANP database
Because of the complexity of calculating noise contours around airports, many of the existing noise models are based on simplified methodologies. In particular, flight operations are generally defined in a generic way, which does not always reflect the actual operational practices at a given airport. Furthermore, these empirical and generic data make it difficult to validate the noise models themselves against measured noise values.
EUROCONTROL Experimental Centre’s ENHANCE tool enables more accurate aircraft noise assessments by processing real-life fleet mixes with associated 4-D radar or simulated flight trajectories and feeding them into existing noise models, such as the FAA’s Integrated Noise Model (INM). It features its own flexible aircraft performance module based on the latest ECAC-ANCAT or SAE 21 recommendations and Aircraft Noise & Performance (ANP) data.
ENVISA has been involved in the design and validation of the latest versions of ENHANCE. Our tasks were to:
- define user requirements
- create radar data processing and smoothing algorithms
- update aircraft performance algorithms
- validate the tool against noise measurements
- provide user support.