Coordinated Active Traffic Management Freeway Strategies Using Capacity-Lagged Cell Transmission Model

Dynamic speed limits (DSL) strategies are expected to delay onset of congestion thanks to its ability to improve traffic flow homogenization and its mainstream metering feature. A new coordinated strategy, i.e. ramp metering (RM) together with DSL, is proposed to reduce the capacity drop occurrence in the vicinity of an on-ramp. It is based in a simple formulation which captures the endogenous merge capacity. The effectiveness of the new control strategy is tested with a cell transmission model extension, which incorporates the ability to reproduce DSL strategies together with capacity drop phenomena. The simulation allows comparing different control/no-control scenarios considering a hypothetical freeway section containing an on-ramp. Results show amelioration in the performance indicators of the system, highlighting the equity-friendly component of the coordinated freeway strategies.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AHB20 Freeway Operations.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Torné, Josep Maria
  • Soriguera, Francesc
  • Geroliminis, Nikolas
• Conference:
  • Transportation Research Board 93rd Annual Meeting
  • Location: Washington DC
  • Date: 2014-1-12 to 2014-1-16
• Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 22p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Freeways; Highway traffic control; Merging control; Ramp metering; Speed limits; Traffic congestion; Traffic flow
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01515437
• Record Type: Publication
• Report/Paper Numbers: 14-3941
• Files: TRIS, TRB, ATRI
• Created Date: Feb 24 2014 8:42AM