"As ultimately defined, the study has had three major objectives: (1) to define compatibility criteria and influence areas for six public - use airports in the County; (2) to assess the role of the Santa Rosa Air Center in the County system of airports; and (3) to evaluate the feasibility of continued public aviation use of the Air Center. The first of these objectives is addressed in a separate document entitled 'Recommended Airport Land Use Policy Plan for the Sonoma County Airport Land Use Commission'." p.1-1.