Intersection advisor: an expert system for intersection design

The Intersection Advisor complements existing microcomputer programs that consider the other two aspects of intersection design, volumes and signalization. Intersection Advisor is intended for eventual incorporation in a comprehensive, interactive intersection design package. M.1, a knowledge-based expert system development tool, was used to develop the Intersection Advisor to run on IBM or IBM-compatible microcomputers. During an interactive consultation the advisor requests information on the intersection volumes, critical movements, geometry, and constraints on approach improvement. It then recommends the most efficient improvements for each approach by generating one of nearly 600 possible reports.