§ 7.703. Sound Attenuation Plan.

A.

The sound attenuation plan shall include a noise analysis of the property that details the projected freeway noise levels based on the most current projected traffic volumes available from the Maricopa Association of Governments. The time period for the projected traffic volumes and traffic characteristics shall be a minimum of fifteen (15) years from the date of the submittal.

B.

The sound attenuation plan shall include the proposed attenuation measures needed to guarantee that the projected exterior noise levels on the property shall not exceed the (Leq) sixty-two (62) dBA noise level. This noise measurement method is the method used by the Arizona Department of Transportation (ADOT) and the Federal Highway Administration (FHWA).

C.

The sound attenuation plan shall include a certification by an acoustical engineer or registered architect as to the projected noise levels on the site and that the sound attenuation measures will meet the (Leq) sixty-two (62) dBA noise level.

(Ord. No. 2127, § 1, 3-28-2000)