Why are the streets of Iran flooded every time it rains? ▫ Why are the streets of Iranian cities flooded every time it rains? Why does life go on as usual in many cities in the world that have more rain, but in Iranian cities, the rain is accompanied by images of floods and severe runoff? ▫ To answer this question, we reviewed 10 local and international studies to see what scientific studies say about the causes of urban flooding. ▫ One of the studies published in 2024 on the first district of Tehran presents the three factors of high urban density, extent of sealed surfaces and Tehran's location on the mountainside as potential causes of floods. ▫ Based on the results of this study, approximately 90% of the area of ​​Zone 1 has a high and very high potential for rainfall flooding with a return period of 5 and 10 years. ▫ Sogul Danai reviews in one title program.

Why are the streets of Iran flooded every time it rains? ▫ Why are the streets of Iranian cities flooded every time it rains? Why does life go on as usual in many cities in the world that have more rain, but in Iranian cities, the rain is accompanied by images of floods and severe runoff? ▫ To answer this question, we reviewed 10 local and international studies to see what scientific studies say about the causes of urban flooding. ▫ One of the studies published in 2024 on the first district of Tehran presents the three factors of high urban density, extent of sealed surfaces and Tehran's location on the mountainside as potential causes of floods. ▫ Based on the results of this study, approximately 90% of the area of ​​Zone 1 has a high and very high potential for rainfall flooding with a return period of 5 and 10 years. ▫ Sogul Danai reviews in one title program.