Consistency evaluation of landscape design by a decision support system

The planning of road structures must take into consideration both structural design and aesthetic design. Road planners and designers must keep in mind aesthetic design in the planning stages. In Japan, various design techniques have been established and many design guidelines and design manuals have been compiled. However most design techniques are derived from empirical knowledge, and their explanations are often subjective. We have developed a decision support system in landscape planning ro simplify complicated processes and avoid fuzziness ir? decision making. We have collected a large amount of empirical knowledge and have created a database for use in developing design techniques. The main system supports designers and allows planners to select suitable design techniques considering environmental conditions and design policy based on a knowledge-based system. The introduction of three concepts-visual importance, visual suitability, and Sour kinds of design consistency-allow's solution of certain design problems.