PROBABLISTIC STRUCTURE OF TWO-LANE ROAD TRAFFIC

In most predictive models for two-lane road traffic, it is assumed that platoons have no physical dimensions, thus restricting their applicability to light traffic where a platoon cannot be long enough to block the progression of the next one. In this paper a model that can be used for heavy traffic is presented. A queueing theory approach in which vehicles are allowed to have physical dimensions yields the platoon length distribution, the delays to fast vehicles, the headway process and the flow density diagram for both the space and time processes. Unlike in other models, the passing rate is determined from the sight distance characteristics of the road and the opposing traffic flow with an approach similar to the one used for vehicular delays at unsignalized intersections; this improves the predictive capabilities of the model. (A) /TRRL/

• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Daganzo, C F
• Publication Date: 1975-12

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 339-346
• Serial:
  • Transportation Research /UK/
  • Volume: 9
  • Issue Number: 6
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Bunching; Forecasting; Headways; Mathematical models; Queuing; Queuing theory; Traffic delays; Traffic density; Traffic flow; Traffic forecasting; Traffic lanes; Traffic platooning; Two lane highways; Vehicle spacing; Vehicles
• Uncontrolled Terms: Two
• Old TRIS Terms: Queueing theory
• ITRD Terms: 1057: Air transport network; 652: Bunching; 132: Forecast; 6473: Mathematical model; 6594: Queue; 673: Traffic concentration; 671: Traffic flow; 2827: Traffic lane; 9082: Two; 694: Vehicle spacing
• Subject Areas: Highways; Operations and Traffic Management; Vehicles and Equipment; I71: Traffic Theory;

Filing Info

• Accession Number: 00134270
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jul 22 1976 12:00AM