EVOLVING TO REAL-TIME ADAPTIVE TRAFFIC SIGNAL CONTROL

Network traffic signal control systems operate largely in a pre-planned or reactive mode. The direction of future traffic control systems is to be real time and adaptive. Experience in congested and closely spaced networks indicates that overly responsive systems can result in worse performance than more traditional control systems. Successful real-time adaptive systems must evolve in a manner that assures improved system performance. The Texas Transportation Institute is developing real-time adaptive control systems by integrating advanced computer and communication technology with traditional traffic control expertise to embark upon an advanced traffic control system. Efforts thus far have produced SMART DIAMOND Interchange Controller, which provides real-time multimodal, traffic adaptive control using advance traffic surveillance concepts. The SMART DIAMOND project is the first step in the evolutionary development of real-time adaptive network control. This new generation of control will integrate distributed, dynamic optimization algorithms with central oversight for global stability. The overall objective is to detect and prevent congestion in real-time by backward pressure propagation.

• Supplemental Notes:
  • Five volumes of papers and one volume of abstracts comprise the published set of conference materials.
• Corporate Authors:

  VERTIS

  TORANOMOM 34 MORI BUILDING 1-25-5
  TORANOMON, MINATOKU, TOKYO 105  Japan 
• Authors:
  • Urbanik II, Thomas
  • Liu, JCS
• Conference:
  • Steps Forward. Intelligent Transport Systems World Congress
  • Location: Yokohama, Japan
  • Date: 1995-11-9 to 1995-11-11
• Publication Date: 1995-11

Language

• English

Media Info

• Pagination: p. 10

Subject/Index Terms

• TRT Terms: Adaptive control; Algorithms; Networks; Optimization; Real time control; Real time data processing; Signalization; Surveillance; Technological innovations; Traffic signals
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00716531
• Record Type: Publication
• Report/Paper Numbers: Volume 1
• Files: TRIS
• Created Date: Feb 26 1996 12:00AM