Context theory is “the theory of how environmental design and planning of new development should relate to its context”. Unless we want the world to become less-and-less diverse, it is a subject which should concern all urban planners, designers, architects and landscape architects. Surely, we all want designs which respond sensitively to the cultural, climatic, ecological, geological, hydrological etc context in which they are built. Cars and moble phones can be everywhere the same but design for the built environment should be sensitive to its context. This requires a theory of how additions to the built environment should relate to their context.
In America, the FHWAFederal Highway Administration” fully supports the concepts and principles that make-up Flexibility in Highway Design, now commonly referred to as “Context Sensitive Design” (CSD)”. Even signage design can be context-sensitive and it is an important aspect of urban street design.