Notes
Fact Sheet No. 5 from the Sea-Tac Communities Plan (STCP), dated May 2, 1973, describing the Noise Exposure Study commissioned by the Port Of Seattle and King County. Robin M. Towne and Associates (RMTA) and Man-Acoustics and Noise, Inc. (MAN), both of Seattle, Washington, were retained to conduct noise measurements and analysis around Sea-Tac Airport. Six initial survey locations were established — including Rainier Golf and Country Club, Sunset Junior High School (20th Ave. So. at So. 141st St.), and Highline College (So. 256th St. and 22nd Pl. So.) — at distances of 5,000, 10,000, or 15,000 feet from runway ends. Measurements were to be computed to Actual Noise Exposure (ANE) values to produce noise contour maps, with a comprehensive 60-site grid planned. Background non-airport noise (vehicular traffic, industrial noise) was also surveyed. Structural vibrations from aircraft operations were to be evaluated in conjunction with University of Washington School of Public Health and Community Medicine and Highline Public Schools reports.