Abstract
A newly developed device, which is to be installed on the seaward side of promenade breakwaters, can be used as a warning system against wave overtopping. This system generates wave splashing and sounds before wave overtopping occurs, warning people nearby of possible danger on the promenade breakwater.
The run-up height of wave splashing and characteristics of the sounds from this system are studied based on the results of hydraulic model tests. According to these tests, this system has been constructed at the Port of Mombetsu.
