The purpose and intent of this zone is at least two-fold. One, it may be used to provide a transition and buffer area between commercially zoned and residentially zoned areas; and two, it is intended to provide an incentive for the preservation of old and historical structures. It may also serve as a buffer zone along major arterials between the roadway and the interior residential areas. Therefore, the requirements set forth herein should be interpreted in relationship to the protection of abutting residential areas. Implementation and interpretation should take into consideration those factors conducive to a healthy place to live, and improvements should be in scale and relationship to surrounding property uses. (Ord. 4128 (part), 1981; Ord. 3380 (part), 1968).