A demonstration of expert systems applications in transportation engineering: Transportation engineers and expert systems
Ardeshir Faghri, Michael J. Demetsky, Virginia Transportation Research Council, Virginia. Dept. of Transportation, United States. Federal Highway Administration
Virginia Transportation Research Council, 1987 - Computers - 35 pages
Expert systems, a branch of artificial-intelligence studies, is introduced with a view to its relevance in transportation engineering. Knowledge engineering, the process of building expert systems or transferring knowledge from human experts to computers, is described. The general differences between expert systems and conventional computer programs are summarized. The architecture of the expert system is shown to separate knowledge of the problem domain (knowledge base) from general problem solving knowledge (inference engine). Different approaches to each of these tasks are described. Recent developments in computer software that support and simplify the development of expert systems are presented, and recent applications to three transportation engineering problems are described. Background information is given to recommend the development of a prototype expert system for traffic control in construction zones.
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acid antecedent Applications in Transportation attribute BDES breadth-first search bridge design process build expert systems CHINA clauses construction zones conventional programs Debugging decision depth-first depth-first search expert system development expertise facts and rules Federal Highway Figure forward chaining frame heuristics highway construction highway noise barrier human expert IBM PC inference chains inference engine knowledge base knowledge engineering Knowledge Infers KNOWLEDGE REPRESENTATION TECHNIQUES knowledge-engineering languages LISP modus ponens nodes noise barrier design nonmonotonic reasoning object-attribute-value objects OPS5 pavement rehabilitation peak-period volume perform predicate calculus problem domain Problem-oriented languages Procedure programming languages propositional calculus prototype expert system public transit mode purpose oriented purpose Rule-based Representing knowledge Rule-based Frame-based Rule-based Rule-based Semantic nets skeletal system slot smells like vinegar solve spill material Symbolics 3600 system-building aids systems in transportation Teknowledge traffic control Traffic Engineer transportation engineering triplets true truth table VAX-11 systems VDOT VTRC Washington Metro Xerox