عنوان مقاله [English]
Flood is an exceptional, extreme water stream that may be overflowed from the natural bed of the river and occupy the land around the bed. Flooding can be the result of heavy rain, quick melting of snow and ice, or the destruction of dams. Whatever the reason for this process, when it enters the urban areas, it causes damage and sometimes heavy casualties, as the city invades the natural hydrological spaces (rivers and river beds) during its development.
Over the past few decades, new methods have been developed to deal with floods, and these methods are of a more pre-emptive and non-therapeutic nature. By laying down and implementing specific plans for urban land use, regulations and laws, as well as education of people, flood damage can be reduced and minimized, while avoiding heavily costs of the construction of flood control structures.
In this regard, the present study, by documentary study, identifies the effects of natural factors (precipitation) and the resulting crisis in urban planning, which results in attention to crisis management in urban planning in order to prevent flooding and reduce rainfall damages as well as extending the optimal use of rainwater in a variety of aspects.