How are the contours produced?
A17. Contours are not routinely produced for all airfields. An initial assessment is made for each airfield of the likelihood of contours falling outside of the boundaries of the airfield which could trigger the operation of a scheme, Where this initial condition is satisfied, a team of our acoustic scientists will visit the airfield and discuss the noise environment with the station’s Community Relations Officer and, together with representatives from the District and County Council environmental departments, work out the locations at which to place noise monitors. This is called a NIGS Survey. The scientific team will then enquire of residents in the selected areas whether they would be agreeable to having a noise monitor placed on their property. The data gathered from the monitors is collected and analysed and from this analysis, combined with values for the ADM, the contours are determined. A more comprehensive explanation of the method used is detailed below: The noise contour is
A17. Contours are not routinely produced for all airfields. An initial assessment is made for each airfield of the likelihood of contours falling outside of the boundaries of the airfield which could trigger the operation of a scheme. Where this initial condition is satisfied, a team of our acoustic scientists will visit the airfield and discuss the noise environment with the station’s Community Relations Officer and, together with representatives from the District and County Council environmental departments, work out the locations at which to place noise monitors. This is called a NIGS Survey. The scientific team will then enquire of residents in the selected areas whether they would be agreeable to having a noise monitor placed on their property. The data gathered from the monitors is collected and analysed and from this analysis, combined with values for the ADM, the contours are determined. A more comprehensive explanation of the method used is detailed below: The noise contour is
