Necessity of implementing plans to organize and secure rivers and waterways in populated areas with reference to the National Disaster Risk Reduction Program rural settlements

Falahati, Fatemeh; Garakani, Seyed Amir Hossein

Necessity of implementing plans to organize and secure rivers and waterways in populated areas with reference to the National Disaster Risk Reduction Program rural settlements

Document Type : Extract article from research project

Authors

Fatemeh Falahati ¹

Seyed Amir Hossein Garakani ²

¹ Assistant Professor, Director of the Hydrological Risks Research Group and member of the faculty of the Natural Disasters Research Institute, Tehran, Iran

² Associate Professor, Department of Architecture, Central Tehran Branch, Islamic Azad University, Tehran, Iran

Abstract

Introduction: Today, the occurrence of extreme phenomena and climate changes, along with the expansion of human activities and encroachment on natural areas, has led to an increase in damages caused by floods. Especially rural settlements due to features such as geographical location, environmental features, physical-spatial structure, and level of possession.
Methods and Material: Therefore, in this research, by analyzing the results of the field visit of 1418 villages in the country, the damage condition of the villages against the flood risk was investigated and after determining several methods presented for immunization, one of these villages has been analyzed by providing the details of the immunization study and hydrological and hydraulic modeling.
Results and Discussion: The results showed that 1169 visited villages are at risk of flooding and respectively, the organization of rivers and floodways with 31.5%, the implementation of watershed management projects in the upstream basin of the villages with 20.8% and then the operation of collecting and directing surface and underground water with 12.3%, were the most important and most frequent solutions to reduce the flood risk in the visited villages.Considering the pervasiveness of improper location selection and the development of constructions on the edges of rivers and the non-observance of the bed and flood protection limits of rivers and floodways, and especially the huge cost of action in the reconstruction and rehabilitation phase after the flood, therefor planning and action in order to prevent and reduce the risk of flooding in accordance with the national disaster risk reduction program, promoting the position of risk reduction considerations in development plans, the implementation of plans to organize and secure rivers and waterways in populated areas, as well as freeing nuisance occupations on the banks of rivers and waterways, are among the priority measures regarding flood risk management.

Keywords

flood

River border

Immunization

Organizing the river

Hydraulic modeling

Subjects

Sustainable Regional Development

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