SUBOPTIMAL CONTROL OF LINEAR SYSTEMS BY AUGMENTATION WITH APPLICATION TO FREEWAY TRAFFIC REGULATION

THE DEVELOPMENT OF ON-RAMP METERING CONTROL STRATEGIES FOR A FREEWAY CAN BE AIDED BY THE WELL-DEVELOPED THEORY OF LINEAR OPTIMAL CONTROL. IN THESE MODELS THE FREEWAY IS SECTIONED INTO LENGTHS OF ABOUT ONE-HALF MILE AND TRAFFIC IS DESCRIBED IN TERMS OF THE AGGREGATE VARIABLES SECTION SPEED, SECTION DENSITY, AND VOLUME. THE MODEL IS USED TO FORMULATE A LINEAR REGULATOR PROBLEM WITH QUADRATIC COST FOR THE PURPOSE OF DETERMINING A FEEDBACK CONTROL RULE WHICH RETURNS THE FREEWAY TO NORMAL CONDITIONS AFTER A DISTURBANCE. THE MODELS AND SUBOPTIMAL CONTROL SCHEME ARE APPLIED TO A SPECIFIC DETAILED DESIGN FOR AN EIGHT-MILE SEGMENT OF THE SAN DIEGO FREEWAY IN LOS ANGELES. /DCPL/

• Authors:
  • ISAKSEN, L
  • Payne, H J
• Publication Date: 1973-6

Media Info

• Pagination: p. 210-9
• Serial:
  • IEEE Transactions on Automatic Control
  • Volume: ac-1
  • Issue Number: n3
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Subject/Index Terms

• TRT Terms: Freeways; Mathematical models; Ramp metering; Traffic control
• Uncontrolled Terms: Models
• Old TRIS Terms: Traffic control systems
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226731
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 5 1973 12:00AM