AN EXPERT-SYSTEM FOR SITE EVALUATION USING AERIAL AND SPACE IMAGERY

Civil engineering projects start with intensive site investigations to evaluate the appropriateness of the geographic location to the intend ed construction. This process is lengthy and crucial to the success or failure of the project. Personnel with multiple skills are required a t the evaluation stage, including experts in soil mechanics, geology, surveying, management, structures and meteorology. However many less f ortunate parts of the world lack such expertise and cannot afford it. The main objective of the research described in this paper is to devel op an expert system that will use images from different sources to ass ess sites for civil engineering works. Five engineering applications h ave been selected for this research. Certainty factors for uncertain o r incomplete information are presented. A frame-based expert system is developed and tested in this research. Three different tests have ind icated that the system is accurate and promising for site investigatio ns.