Zoning in America is conceptually based on the Standard State Zoning Enabling Act of 1926, often referred to as “Euclidian” zoning. Its primary purpose is to separate uses such as homes from stores and polluting factories. The unforeseen side-effect of this laser-focus on separating uses is that all activity, every errand, requires a drive.
Under form-based coding, building forms are regulated more than their ultimate uses, although the more troublesome uses are still fully regulated. This allows a finer-grained mix of uses within buildings that form healthy neighborhoods. When properly implemented, form-based codes help create or maintain complete communities or improve existing ones.