A drainage system is absent from Riyadh’s infrastructure. With the recurring storms that are flooding the streets of the city, tOD is proposing a storm management solution by replacing sidewalks with swales.
Swales are long, narrow, depressed corridors that are naturally available in the landscape or artificially designed. They have different advantages such as:
- increasing pervious surfaces in urban areas
- slowing and capturing rainwater runoff
- improving water infiltration
- filtering road pollutants
By integrating swales along the different projects the storm flooding problems will be alleviated, however other interventions need to take place to improve the overall situation of the entire city.