ENTRANCE RAMP CONTROL FOR TRAVEL-RATE MAXIMIZATION IN EXPRESSWAYS

The steady state optimization of expressway system operations when peak demands exceed capacities is investigated. An alternative approach of using travel-rate or average traffic flow of the whole expressway system instead of input rate as the criterion of optimization is adopted. This leads to a linear programming problem. Residual effects of peak-period traffic are taken into consideration in computing total time to return to normal traffic pattern. For the example considered, this total clearing time for a control scheme using travel-rate maximization is slightly less than that for one using input rate maximization. In addition, travel-rate maximization control has a tendency to discourage vehicles making short trips to use the freeway system during the peak period. /Author/

• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Chen, C I
  • Cruz Jr, J B
  • Paquet, J G
• Publication Date: 1974-12

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 503-508
• Serial:
  • Transportation Research /UK/
  • Volume: 8
  • Issue Number: 6
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Expressways; Freeway operations; Interchange ramps; Optimization; Peak hour traffic; Rates; Traffic control; Traffic flow; Travel
• Old TRIS Terms: Freeway entrances and exits; Freeway ramps
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00083286
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 26 1975 12:00AM