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Effects Of Passing Lanes On Highway Traffic Flow

Author

Listed:
  • RUILI WANG

    (Institute of Information Sciences and Technology, Massey University, New Zealand)

  • RUI JIANG

    (School of Engineering Science, University of Science and Technology of China, Hefei, China)

  • MINGZHE LIU

    (Institute of Information Sciences and Technology, Massey University, New Zealand)

Abstract

In this paper, the effects of passing lanes on traffic flow on a single-lane highway are investigated based on a cellular-automaton (CA) model proposed by Leeet al.(2004) with periodic boundary conditions. A new driving strategy for the diverging and interacting processes are proposed by considering dual-time-headways (an interaction headway and a safe headway) as the criteria for a vehicle to select a lane or change lane. The proposed dual-headway rule has a clear physical sense and can be calibrated in the real world. We can see that (i) At low- (or high-) densities, there are no obvious increases of flux due to very weak (or very strong) interactions between vehicles. However, flux has an obvious increase at intermediate-density regions with the increase of the length of a passing lane; (ii) the space-time patterns before a passing lane are different from that after a passing lane, which is caused from vehicular reconfigurations on a passing zone; (iii) passing lanes can merge several narrow jams into one or few wide jams when increasing the length of passing lanes; (iv) if vehicles are allowed to travel with even higher speed, traffic can be further improved.

Suggested Citation

  • Ruili Wang & Rui Jiang & Mingzhe Liu, 2007. "Effects Of Passing Lanes On Highway Traffic Flow," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 18(12), pages 1865-1883.
    • Handle: RePEc:wsi:ijmpcx:v:18:y:2007:i:12:n:s0129183107011790
    DOI: 10.1142/S0129183107011790
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