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An Analysis into Speed and Schedule Stability for Container Liner Services

Author

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  • Michael G H Bell

    (Port Operations, Research and Technology Centre (PORTeC), Centre for Transport Studies, Imperial College London, London SW7 2BU, UK. E-mails: m.g.h.bell@imperial.ac.uk, kbichou@imperial.ac.uk)

  • Khalid Bichou

    (Port Operations, Research and Technology Centre (PORTeC), Centre for Transport Studies, Imperial College London, London SW7 2BU, UK. E-mails: m.g.h.bell@imperial.ac.uk, kbichou@imperial.ac.uk)

Abstract

The rate at which vessels are loaded and unloaded has a bearing on turnaround time and therefore on the required size of the fleet. This paper shows that the loading rate also has a bearing on schedule reliability. When schedules are unstable vessel bunching can occur, leading to less frequent services operated by bunches of vessels. This greatly affects the average inventory throughout the shipping supply chain network. It is shown that schedule stability requires the loading rate to be at least twice the rate at which containers to be loaded accumulate in the yard. Analytical expressions are derived for the arrival headways variance at the second and third ports of call. This paper extends on previous work on this topic by considering both loading and unloading of containers. Countermeasures to restore schedule stability are considered. Maritime Economics & Logistics (2008) 10, 175–184. doi:10.1057/palgrave.mel.9100197

Suggested Citation

  • Michael G H Bell & Khalid Bichou, 2008. "An Analysis into Speed and Schedule Stability for Container Liner Services," Maritime Economics & Logistics, Palgrave Macmillan;International Association of Maritime Economists (IAME), vol. 10(1-2), pages 175-184, March.
  • Handle: RePEc:pal:marecl:v:10:y:2008:i:1:p:175-184
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    Cited by:

    1. Wang, Shuaian & Meng, Qiang, 2012. "Liner ship route schedule design with sea contingency time and port time uncertainty," Transportation Research Part B: Methodological, Elsevier, vol. 46(5), pages 615-633.
    2. Wang, Shuaian, 2016. "Fundamental properties and pseudo-polynomial-time algorithm for network containership sailing speed optimization," European Journal of Operational Research, Elsevier, vol. 250(1), pages 46-55.
    3. Wang, Shuaian & Meng, Qiang, 2012. "Robust schedule design for liner shipping services," Transportation Research Part E: Logistics and Transportation Review, Elsevier, vol. 48(6), pages 1093-1106.
    4. Wang, Shuaian, 2013. "Essential elements in tactical planning models for container liner shipping," Transportation Research Part B: Methodological, Elsevier, vol. 54(C), pages 84-99.

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