최근 도시홍수에 의해 많은 피해가 발생하고 있으며, 단시간에 국지적으로 발생하는 집중호우가 1차원인으로 꼽히고 있다.
Recently, a lot of damage has been caused by urban floods, and heavy rains that occur locally in a short time are pointed out as the primary cause.