IDEAS home Printed from https://ideas.repec.org/a/pal/marecl/v20y2018i2d10.1057_s41278-016-0044-6.html
   My bibliography  Save this article

Containership port time: The bay time factor

Author

Listed:
  • Shmuel Yahalom

    () (State University of New York Maritime College)

  • Changqian Guan

    (United States Merchant Marine Academy)

Abstract

Abstract Containership size has been increasing in length, width (beam), and height. The introduction of Ultra Large Containerships results in a much larger number of containers stowed in a cargo bay. The objective of this paper is to determine the impact of the increasing containership bay size on the economies of scale at berth. We develop the concept of bay time, the amount of time it takes to load and discharge the largest cargo bay of a containership based on bay size, in order to determine the minimum amount of time it takes to discharge and load a containership. The analysis establishes that bay time is the foundation and critical path of the minimum amount of time a containership must stay at berth and in port. The study notes that, inherently, an increase in containership bay size involves diseconomies of scale in cargo handling operations, at a given level of gantry crane productivity. We find that there are increasing diseconomies of scale for large containerships at berth. The study also establishes that: as beam/bay size increases, the average cargo handling time of two bays increases by an average of 4.5 h at any productivity level. Bay time declines as crane productivity increases up to the crane’s technological constraint. Furthermore, the larger the beam/bay, the larger the marginal benefits when productivity increases. The diseconomies of scale are stable and predictable at every gantry crane productivity level. The study recommends using bay time as the fundamental measure for containership performance at berth and in port, as well as for voyage planning.

Suggested Citation

  • Shmuel Yahalom & Changqian Guan, 2018. "Containership port time: The bay time factor," Maritime Economics & Logistics, Palgrave Macmillan;International Association of Maritime Economists (IAME), vol. 20(2), pages 211-227, June.
  • Handle: RePEc:pal:marecl:v:20:y:2018:i:2:d:10.1057_s41278-016-0044-6
    DOI: 10.1057/s41278-016-0044-6
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1057/s41278-016-0044-6
    File Function: Abstract
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Christa Sys & Gust Blauwens & Eddy Omey & Eddy Van De Voorde & Frank Witlox, 2008. "In Search of the Link between Ship Size and Operations," Transportation Planning and Technology, Taylor & Francis Journals, vol. 31(4), pages 435-463, June.
    2. César Ducruet & Hidekazu Itoh & Olaf Merk, 2014. "Time Efficiency at World Container Ports," International Transport Forum Discussion Papers 2014/8, OECD Publishing.
    3. R. G. McLellan, 1997. "Bigger vessels: How big is too big?," Maritime Policy & Management, Taylor & Francis Journals, vol. 24(2), pages 193-211, January.
    Full references (including those not matched with items on IDEAS)

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:pal:marecl:v:20:y:2018:i:2:d:10.1057_s41278-016-0044-6. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Sonal Shukla) or (Rebekah McClure). General contact details of provider: http://www.palgrave-journals.com/ .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.