CALTRANS DISTRICT 12 REAL-TIME EXPERT SYSTEM FOR FREEWAY INCIDENT MANAGEMENT. FINAL REPORT

This report describes the development of a prototype, multi-user, networked, real-time knowledge-based expert system (KBES) to provide decision support to California Department of Transportation (Caltrans) and California Highway Patrol (CHP) traffic management center (TMC) operators so they can more effectively carry out their functions. The research focuses on developing an operational management and response system using knowledge obtained from experts in the traffic management field. Knowledge specific to Caltrans District 12 in Orange County, California, was obtained from traffic management specialists and placed in the KBES. The prototype system, named FIM for Freeway Incident Manager, is implemented in G2, a real-time expert system shell, and is currently in the field at the new Caltrans District 12 TMC in Orange County. This report describes the development of incident detection, verification, and response knowledge bases for the system. It also describes the implementation of the system using G2 real-time KBES development software on a Sun SPARCstation. It concludes with a discussion of directions for future research, including the integration of the expert system with other automated TMC functions such as integrated ramp metering and changeable message sign control so that the KBES can provide an integrated management environment for the TMC.

• Corporate Authors:

  University of California, Irvine

  Institute of Transportation Studies
  4000 Anteater Instruction and Research Building
  Irvine, CA  United States  92697

  California Department of Transportation

  1120 N Street
  Sacramento, CA  United States  95814
• Authors:
  • Stack, R
  • Ritchie, S G
• Publication Date: 1993-12

Language

• English

Media Info

• Features: Appendices; Figures; References;
• Pagination: 101 p.

Subject/Index Terms

• TRT Terms: Decision support systems; Expert systems; Freeways; Future; Highway traffic control; Implementation; Incident detection; Incident management; Prototypes; Real time control; Research
• Uncontrolled Terms: Future research
• Geographic Terms: Orange County (California)
• Old TRIS Terms: Real-time systems
• Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management; Research; Safety and Human Factors; I73: Traffic Control;

Filing Info

• Accession Number: 00664376
• Record Type: Publication
• Contract Numbers: RTA 51Q344
• Files: TRIS, STATEDOT
• Created Date: Aug 23 1994 12:00AM