CHARLOTTE, N.C. (AP) - Charlotte Douglas International Airport is updating its noise maps.
The Charlotte Observer reported (http://bit.ly/1yAPm2W) the new maps might result in some homeowners being given more insulation and some homeowners having their homes purchased by the airport.
The noise exposure maps help officials determine which properties are eligible for purchase by the airport and which are eligible for extra insulation, storm doors and storm windows, based on average noise amounts.
The airport hopes to finish the project in about a year.
Charlotte Douglas is the sixth busiest airport in the country, with more than 700 flights daily.
The biggest problem occurs north and south of the airport's three parallel runways and at the ends of its one diagonal runway.
The airport has purchased neighborhoods in the paths of planes.
Information from: The Charlotte Observer, http://www.charlotteobserver.com
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