Abstract
Transmitted waves through breakwaters due to wave overtopping and their propagation toward quays are sometimes considered in harbor tranquility analysis, because the wave overtopping may occur on breakwaters at harbor entrance in storms. In this study, their effects on cargo handling rate on quays are estimated with considering variations of ratio of wave height due to difference of incident wave height. As a result, it is clear that significant wave transmission cannot occur in case that wave overtopping rate is smaller than 0.02 m3/s/m. Hence, the cargo handling rate which is estimated with such way becomes higher because frequent storm waves are attenuated due to wave breaking instead of generating transmitted waves in harbor inside.
