The decisions of the boundary review board shall attempt to achieve the following objectives:
(1) Preservation of natural neighborhoods and communities;
(2) Use of physical boundaries, including but not limited to bodies of water, highways, and land contours;
(3) Creation and preservation of logical service areas;
(4) Prevention of abnormally irregular boundaries;
(5) Discouragement of multiple incorporations of small cities and encouragement of incorporation of cities in excess of ten thousand population in heavily populated urban areas;
(6) Dissolution of inactive special purpose districts;
(7) Adjustment of impractical boundaries;
(8) Incorporation as cities or towns or annexation to cities or towns of unincorporated areas which are urban in character; and
(9) Protection of agricultural and rural lands which are designated for long term productive agricultural and resource use by a comprehensive plan adopted by the county legislative authority.