In 2002 the Transport Research Laboratory (TRL) carried out a noise assessment on this section of the M20 on behalf of the Highways Agency. This was part of the Government's programme for prioritising the surfacing of concrete roads under the Ten Year Plan. The results of TRL assessment indicated that the noise levels on the section of the M20 between Junction 8 (Maidstone) and Junction 9 (Ashford) were three dB(A) more than predicted and therefore it qualified as a high priority site for resurfacing. There have been no further noise assessments on this section since 2002.
As the road surface on the M20 between Junction 8 and Junction 9 is still in a structurally sound condition there are no plans at the present time to resurface for at least five years.