http://www.motorsportvision.co.uk/trackdays/trackdaytermsba_c.asp
The regulations relating to noise levels are required as a result of environmental and/or planning reasons relevant to MSV venues and so there is no room for discretionary relaxation. They are reasonable restrictions which ensure activities at the MSV venues create the minimum amount of disturbance to our neighbours. Although these restrictions can seem prohibitive, we operate our retail driving activities, using single seater racing cars and sportscars, in full compliance with these limits. These measures are required to ensure that the majority of track day customers who do not attempt to flaunt the noise limits are able to continue to enjoy their track days without the relevant event or future events having to be restricted due to the acts of others.
All vehicles participating in track days at Bedford Autodrome must conform to MSV’s static noise test limit of
101dB(A). Noise checks to establish adherence to this limit will be conducted in accordance with current measuring methods as defined by the MSA. Essentially this means that the test will be carried out with the meter 0.5m from the car exhaust at a 45 degree angle with the car at ¾ maximum revs.
In addition to the static test mentioned above, vehicles must also comply with our drive-by noise limits. The noise emissions from any vehicle must not exceed
87.5dB(A) measured 20m from the car, which shall be accelerating maximally at over 60mph. Drive-by levels are monitored using noise meters located at several locations around the Bedford Autodrome complex.
If the results of the monitoring show that a particular vehicle is exceeding the drive-by limit of
87.5dB(A), then MSV staff will inform the participant and their vehicle will not be permitted to take further part in the event.
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