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<p>We present an innovative time-dependent network model tailored for optimizing vessel routing on the St. Lawrence River, where complex river conditions, vessel characteristics and navigational rules create significant modeling challenges. This model is generic and can handle many vessel routing problems while considering a set of practical spatial–temporal rules along a vessel transit at any time. The proposed approach dynamically adjusts vessel speed along the route and departure time to minimize total cost depending on route time, pilot cost and fuel consumption, while adhering to all maritime regulations. A case study with a bulker and a multi-purpose vessel shows that an optimal routing can be found in quick solution time, offering substantial fuel cost savings and improved operational efficiency for maritime operators.</p>

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Vessel routing planning on the St. Lawrence River in Canada

  • 期刊论文

  • 发表日期：

    2025年8月26日

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  • Chourouk Gharbi,
  • Jean-François Audy,
  • Mikael Rönnqvist,
  • Patrik Flisberg

摘要

We present an innovative time-dependent network model tailored for optimizing vessel routing on the St. Lawrence River, where complex river conditions, vessel characteristics and navigational rules create significant modeling challenges. This model is generic and can handle many vessel routing problems while considering a set of practical spatial–temporal rules along a vessel transit at any time. The proposed approach dynamically adjusts vessel speed along the route and departure time to minimize total cost depending on route time, pilot cost and fuel consumption, while adhering to all maritime regulations. A case study with a bulker and a multi-purpose vessel shows that an optimal routing can be found in quick solution time, offering substantial fuel cost savings and improved operational efficiency for maritime operators.