2022 Volume 41 Pages 131-141
In order to understand the factors that contribute to the perception gap between dam managers and residents in the downsteam area when emergency water discharge operations occur, we conducted a literature review and interviewed several dam managers. By applying the KJ method to the basic data, we revealed that publicity on excess floods has been scarce for a long period of time, and this may be the cause of perception gap. And we made suggestions for improvement in this problem.