The creation of a successful comprehensive plan is dependant upon the planning of compact, consolidated, connected and consistent land uses which are arranged (or identified, planned, sited,etc...) throughout the development area (in this case the term development is used to describe the overall evolution and development of a large community, i.e. a town as opposed to a single-family development). There should be a diverse mix of uses throughout the entire planning area, although those uses must be complimentary and consistent.
Nearly all of the modern zoning codes, comprehensive plans and unified development ordinances take into consideration complimentary and consistent land uses designations. The finest example of this segregation of uses is the in almost all municipalities in the United States, land owners are forbidden from siting an adult-oriented business in close proximity to a church or school (which in the case of the church, it is qiute ironic considering the company that Jesus kept, this means you Mary Magdalene!).

Two English cities have been planned according to Howard's vision, Letchworth Garden City and Welwyn Garden City. While planning utopias are exactly that, these two cities have managed to adhere and utilize Howard's original vision for the logical, sustainable and equitable development of urban, suburban and rural areas as one comprehensive whole.
This is the type of approach we, both locally and nationally, should wholly embrace to ensure that the needs of the current generation shall be met without compromising the ability of future generations to meet thier own needs.
“We shall never achieve harmony with land any more than we shall achieve justice or liberty for people. In these higher aspirations the important thing is not to achieve, but to strive.” - Aldo Leopold.