Possible remedies for intact stability hazards involving contemporary small inland passenger ferries in Bangladesh

Abstract

On the basis of previous studies, a series of hazards involving the typical small inland passenger ferries operating in inland Bangladeshi waters have been identified. In particular, stormy weather conditions, overloading, and the risk of crowding to one side have been determined as the typical events that are likely to lead to capsizing in the intact condition. In this article, possible hazard mitigation measures are discussed, both from the regulatory and from the design point of view, for a small inland ferry that is very similar to one that actually capsized in the past. The addressed design options involve ballasting and hull modification by means of additional buoyancy above the waterline. From a regulatory point of view, it is proposed that the present weather criterion in force in Bangladesh be modified by increasing the wind speed to be accounted for and by considering the concurrent effects of wind, rolling, and the crowding of people to one side.

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Acknowledgments

The Japan Society for the Promotion of Science (JSPS) is gratefully acknowledged for financial support through the scholarships PE0502 (Gabriele Bulian) and P05370 (Kho Shahriar Iqbal). The authors would also like to acknowledge the co-operation of Professor M. Mazharul Hoque of the Accident Research Centre, Bangladesh University of Engineering and Technology; Dr. Reaz H. Khondoker and Md. Rabiul Islam of the Bangladesh Inland Water Transport Authority; and Mr. M. M. Zulfikar of the Department of Shipping, Bangladesh.

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Correspondence to Kho Shahriar Iqbal.

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Iqbal, K.S., Bulian, G., Hasegawa, K. et al. Possible remedies for intact stability hazards involving contemporary small inland passenger ferries in Bangladesh. J Mar Sci Technol 13, 282–290 (2008). https://doi.org/10.1007/s00773-008-0023-4

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Keywords

  • Transport safety
  • Inland water transport
  • Passenger ferry
  • Intact stability
  • Additional buoyancy
  • Hazard identification
  • Weather criterion