ESTIMATION OF TRAFFIC EQUILIBRIUM

THE IMMEDIATE EFFECT OF CHANGE IN A TRAFFIC REGIME (E.G., SIGNING, SIGNAL MODE CHANGE, RAMP CONTROL) MAY NOT ALWAYS INDICATE THE LONG-TERM, EQUILIBRIUM EFFECT OF SUCH A CHANGE. PARTICULARLY IN LARGE, COMPLEX SYSTEMS, A CHANGE WILL RESULT IN UNNATURAL (AND IMPERMANENT) EFFICIENCY, ATTRIBUTABLE TO THE "HAWTHORNE EFFECT". FOR A CASE STUDY IN DETROIT, IT WAS SHOWN THAT ELEMENTARY REGRESSION ANALYSIS ON TIME SERIES TRAFFIC VOLUME DATA CAN INDICATE THE DATE A SYSTEM REACHES STASIS. WHILE WAITING A WEEK BEFORE A COMPARISON STUDY MAY USUALLY BE SUFFICIENT, THE PRESENT METHOD COULD MINIMIZE DATA COLLECTION COSTS AND PROVIDE INDIRECT SAVINGS AS WELL.

• Supplemental Notes:
  • Vol 41, No 11, PP 38-41, 3 FIG, 1 TAB, 6 REF
• Authors:
  • Levin, M
  • Brewer, K A
• Publication Date: 0

Media Info

• Serial:
  • Traffic Engineering, Inst Traffic Engr
  • Volume: 44
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Before and after studies; Equilibrium (Mechanics); Highway planning; Traffic; Traffic flow; Travel patterns
• Uncontrolled Terms: Traffic patterns
• Old TRIS Terms: Traffic planning
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00227346
• Record Type: Publication
• Files: TRIS
• Created Date: May 22 1972 12:00AM