On file with the Community Development Department of the City and made a part of this comprehensive plan amendment and rezoning approval, for concept description and delineation is the sketch plan document. It is recognized that the minor shifts or realignments of roadways and units may be necessary and compatible with the need to acquire workable street patterns, grades, and usable building sites but the general plan layout, including the relationship of unit types to each other and the relationship of unit types to the general plan framework, traffic layout and development requirements shall be used as the implementation guide. (Ord. 671, 5-11-1981)