The standards of concentration of persons per acre are intended to protect public health, safety, and welfare by ensuring that large concentrations of people are not allowed in areas exposed to safety hazards within areas around airports.
A. Calculation of the anticipated maximum number of persons per acre associated with a particular use shall be based on the processes described in Appendix A of the 1999 Executive Airport Comprehensive Land Use Plan, as follows:
1. Ten persons per acre at any time. Number of persons per acre is calculated as follows:
a. Determine size, in gross acres, of the development proposal or project area using a parcel-specific development plan map. If acres are not known, divide project size in square feet by 43,560 to obtain size in acres;
b. Determine highest number of persons expected in the proposal or project area at any time during a typical 24 hour period ending at midnight; and
c. Divide highest number of persons expected at any time during typical 24 hour period by size of proposal or project in acres to determine highest number of persons per acre at any time.
2. Fifty persons per acre at any time. Number of persons per acre is calculated as follows:
a. Determine size, in gross acres, of the development proposal or project, using a parcel specific development plan map. If acres are not known, divide project size in square feet by 43,560 to obtain size in acres;
b. Determine highest number of persons expected in the proposal or project area at any time during a typical 24 hour period ending at midnight; and
c. Divide highest number of persons expected at any time during typical 24 hour period by size of proposal or project in acres to determine highest number of persons per acre at any time.
B. At the request of the city, the airport land use commission may perform a review for conformity with the concentrations of persons per acre standards and issue a determination. The commission must be able to review parcel specific development proposals; general plan or zoning amendment proposals for large areas usually do not provide sufficient parcel-specific or site-specific information on which to base a conformity determination on the concentration of persons standard.
C. Development proposals found not to contain sufficient site-specific information may be deemed "Incompatible, due to lack of specific information," or may be deemed "Compatible, subject to conditions placed on the project." (Ord. 2013-0020 § 1; Ord. 2013-0007 § 1)