Noise Contours

Airport noise contour modelling

Aircraft noise maps, which show lines joining points of equal noise, are a powerful tool for illustrating the impact of aircraft noise around airports. 

ERCD developed the UK civil aircraft noise contour model ANCON, which calculates the contours from data describing aircraft movements, routes, noise generation and sound propagation.

ANCON is used to generate annual noise exposure contours for the London airports at Heathrow, Gatwick and Stansted. Other major airports are increasingly requesting the production of contours - our customers have included Manchester, Birmingham, Glasgow, Edinburgh, Aberdeen and Leeds Bradford airports.

Forecasts of the noise impact of airport developments or changes to air traffic operations are also often produced using ANCON.  These are needed by airport operators for planning and for wider studies of national or regional air transport needs.

Noise contours overlaid onto aerial and Ordnance Survey maps

ERCD has the capability to overlay noise exposure contours on a variety of backgrounds, including 1:10,000, 1:25,000 and 1:50,000 scale raster maps, theme-based vector maps, and also digital aerial photography data.


Further information

The annual noise contours for Heathrow, Gatwick and Stansted dating back to 1997 are available from the Department for Transport (DfT) website.

A number of papers published by ERCD on the topics of aircraft noise model validation and accuracy can be downloaded from the ERCD News page.