FLOW OPTIMIZATION WITH TRAFFIC SAFETY CONSTRAINTS --TRAFFIC SAFETY THEORY AND RESEARCH METHODS. APRIL 26-28, 1988, AMSTERDAM, THE NETHERLANDS. SESSION 5: TIME DEPENDENT MODELS

The introduction of safety criteria (depending on management) on the equilibrium traffic models (depending on users) is considered. Two typical traffic situations have been considered where it is necessary to take safety into account. One consideration is the safe distance between vehicles and the other is the acceleration limit used as a vehicle enters the freeway. To treat the non-linear bounds in the flow resulting in the consideration of safety situations, an ad hoc procedure of decomposition is adapted, where the management considerations relative to safety inform the flow bounds on the user's equilibrium model of the next iteration. The use of the equilibrium models with upper and lower flow bounds implies an adaption of the frank-wolfe method to include them. For the covering abstract of the conference, session v, see IRRD 813228.

• Corporate Authors:

  Institute for Road Safety Research, SWOV

  Bezuidenhoutseweg 62
  The Hague,   Netherlands  2594 AW
• Authors:
  • Marin, A
  • Pablos, P
• Publication Date: 1988

Language

• English

Media Info

• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Access roads; Conferences; Equilibrium (Mechanics); Freeways; Mathematical models; Methodology; Networks; Roads; Safety; Traffic; Traffic congestion; Traffic control; Traffic flow; Ultimate load design; Vehicle spacing
• Uncontrolled Terms: Road networks
• Geographic Terms: Spain
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00481797
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 30 1989 12:00AM