Noise definition misses the point

The Civil Aviation Authority's definition of noise says that: "The extent of the unacceptability of sound depends on three physical characteristics:​"

• Intensity

• Duration

• Frequency

We think this definition is inadequate and that it needs to include:

• time of day and

• ambient/default noise levels. 

We think that without these, airports get an easy ride particularly since aircraft noise is excluded from any legal controls or environmental legislation.