Skip to main content
eScholarship
Open Access Publications from the University of California

Reducing Ship Turn-Around Time Using Double-Cycling

  • Author(s): Goodchild, A. V.
  • Daganzo, C. F.
  • et al.
Abstract

Double cycling improves efficiency by unloading and loading a ship simultaneously; using wasted crane moves to transport containers. This paper demonstrates that double cycling can reduce ship turn-around time through this efficiency improvement. The paper describes the nature of the double cycling problem and, for a given loading-plan, quantifies the benefits using a greedy algorithm. The relationship between the benefits of double cycling, and the problem parameters is analyzed using simple formulas and a simulation program. This paper demonstrates that double cycling can create significant efficiency gains, and should benefit any party interested in improving port operations, and reducing the cost of container shipping.

Main Content
Current View