Citation

Chang ECP. ITE J. 1988; 58(1): 21-27.

Copyright

(Copyright © 1988, Institute of Transportation Engineers)

DOI

unavailable

PMID

unavailable

Abstract

A study is reported which investigated the feasibility of applying artificial inteligence (AI) technology and expert systems (ES) design concepts to a traffic engineering problem. Prototype systems were developed to analyze user input, evaluate various reasoning, and suggest suitable left turn phase treatment. Artificial intelligence technology and AI languages are discussed. Evaluation and design procedures are needed to develop a practical expert system (ES) application. The basic design process used to implement this left turn phase selection ES are described and include the following: extracting basic information; defining the determining factors; defining the goals and objectives; defining the analysis constraints; developing the program; and finishing program documentation. Decision table analysis and logical program structure (implemented in 3 expert systems) are also described. The advantages and disadvantages of the 3 prototype expert systems developed are compared. The study found that expert systems are appropriate for pre-identified problem solving; and artificial intelligence languages and knowledge-based engineering tools have their own advantages and disadvantages