Abstract
An evacuation port facility for a ferry connecting remote islands is under consideration in Sendai Port. The facility is a rectangular shaped small basin, which consists of wave dissipating vertical walls. The ferry is housed and tightly moored with a number of ropes during severe waves and winds caused by typhoons. To understand the effects of waves and winds on the ship motions and the mooring rope tensions, hydraulic model experiments were conducted. The ship motions were recorded by video cameras and analyzed with motion capture devices. The tension loads exerted on the mooring ropes were measured by load meters connected in rope. It was found that for each mooring rope the maximum tension loads are all less than the rupture load if the rope is new, but when the ropes are deteriorated, the rupture of the ropes might occur.
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