Multi-class Traffic Flow Model Based on Three-Dimensional Flow-Concentration Surface

The paper proposes a continuum model for multi-class traffic based on a three dimensional flow-concentration surface. The propagation speed of small disturbance (PSSD) is derived based on the flow-concentration surface. Using the proposed PSSD and with a recently developed speed-area occupancy curve, a macroscopic continuum model for multi-class traffic is formulated that can replicate traffic flow behaviour where lane discipline is not strictly followed. The qualitative and quantitative properties of the proposed model are checked using numerical simulations for hypothetical road sections. The proposed model correctly reproduce the congestion formation and dissipation behaviour of multi-class traffic and the phenomena of local cluster effect.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AHB45 Standing Committee on Traffic Flow Theory and Characteristics.
• Corporate Authors:

  Transportation Research Board

  ,    
• Authors:
  • Mohan, Ranju
  • Ramadurai, Gitakrishnan
• Conference:
  • Transportation Research Board 98th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2019-1-13 to 2019-1-17
• Date: 2019

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 5p

Subject/Index Terms

• TRT Terms: Macroscopic traffic flow; Traffic congestion; Traffic simulation; Vehicle mix
• Subject Areas: Highways; Planning and Forecasting;

Filing Info

• Accession Number: 01698082
• Record Type: Publication
• Report/Paper Numbers: 19-04534
• Files: TRIS, TRB, ATRI
• Created Date: Mar 1 2019 3:51PM