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Modelling motorway merge: The current practice in the UK and towards establishing general principles

Author

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  • Liu, Ronghui
  • Hyman, Geoff

Abstract

Motorway merging has been regarded as a major source of conflicts and congestion, but has long been recognised as an area in which modelling has been relatively weak. The current traffic models represent the traffic operations at a merge are based on gap-acceptance approach, with the merging traffic giving-way to traffic on the mainline carriageway and imposing little or no delay to the mainline traffic. The results tend to overestimate delays to the merging traffic, and underestimate delays and interruptions to the mainline traffic.

Suggested Citation

  • Liu, Ronghui & Hyman, Geoff, 2012. "Modelling motorway merge: The current practice in the UK and towards establishing general principles," Transport Policy, Elsevier, vol. 24(C), pages 199-210.
  • Handle: RePEc:eee:trapol:v:24:y:2012:i:c:p:199-210
    DOI: 10.1016/j.tranpol.2012.07.014
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    References listed on IDEAS

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    1. Geroliminis, Nikolas & Daganzo, Carlos F., 2008. "Existence of urban-scale macroscopic fundamental diagrams: Some experimental findings," Transportation Research Part B: Methodological, Elsevier, vol. 42(9), pages 759-770, November.
    2. Bonsall, Peter & Liu, Ronghui & Young, William, 2005. "Modelling safety-related driving behaviour--impact of parameter values," Transportation Research Part A: Policy and Practice, Elsevier, vol. 39(5), pages 425-444, June.
    3. Bunker, Jonathan & Troutbeck, Rod, 2003. "Prediction of minor stream delays at a limited priority freeway merge," Transportation Research Part B: Methodological, Elsevier, vol. 37(8), pages 719-735, September.
    4. Evans, Jodie L. & Elefteriadou, Lily & Gautam, Natarajan, 2001. "Probability of breakdown at freeway merges using Markov chains," Transportation Research Part B: Methodological, Elsevier, vol. 35(3), pages 237-254, March.
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