The regulations contained herein are necessary to encourage the most appropriate uses of land; to maintain and stabilize the value of property; to reduce fire hazards and improve public safety and safeguard the public health; to decrease traffic congestion and its accompanying hazards; to prevent undue concentration of population; and to create a comprehensive and stable pattern of land uses upon which to plan for transportation, water supply, sewerage, schools, parks, public utilities and other facilities. In interpreting and applying the provisions of this title, they shall be held to be necessary for the promotion of the public health, safety, comfort, convenience and general welfare. (1989 Code § 12-202)