n expert system was developed by the Texas Transportation institute (TTI) to assist users in selecting computerized software currently being supported by the Federal Highway Administration (FHWA), U. S. Department of Transportation. This system was designed to investigate the potential expert systems applications in transportation engineering. This study was performed to serve three basic purposes. First, it investigates the feasibility of developing small-scale traffic engineering knowledge-based expert systems using a simple knowledge engineering tool. Secondly, it develops an alternative method of recommending computer programs for user-specified applications. Thirdly, it investigates a possible approach for implementing advisory expert systems to be operated in the IBM PC/XT/AT microcomputer environment. This paper describes the development of this expert system using a commercially available knowledge engineering tool developed by Level Five Research, Inc. INSIGHT 2+ was used to explore with the expert system programming in an inexpensive microcomputer environment. In operation, this system reviews and analyzes the user input information, evaluates with various reasoning paths and offers a conclusion. With the proper combination of knowledge programming tools and pre-identified decision-making processes, individual users can develop their applications faster than if they had to learn complex Artificial Intelligence programming languages. It is recommended that the expert advisory system design concept of this prototype model be extended to assist practicing traffic engineers in selecting software packages to optimize traffic control strategies. With proper improvement, this type of expert system design can assist the user as a stand-alone expert advice system.

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Published on 01/01/2003

Volume 2003, 2003
DOI: 10.1145/318371.318704
Licence: CC BY-NC-SA license

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