This article  (no longer online) from MyInKy.com reports that the KYTC is reviewing its policy on placing sound barriers. The KYTC has a policy against erecting sound barriers after a road project is completed; however, requests by Upper Highlands Neighborhood Association's along Louisville's Watterson Expressway have them reviewing the policy. A study funded by the Louisville Board of Aldermen found that the noise is so loud that conversations could not be carried on outside.