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Urban Drainage Systems

Urban drainage systems and technologies encompass a variety of approaches to manage and control stormwater runoff in urban areas.

Here is a list of some standard urban drainage systems and technologies:

  1. Stormwater Drains: Traditional underground pipes designed to collect and convey stormwater runoff from impervious surfaces to appropriate discharge points.
  2. Permeable Pavements: Pavement materials that allow water to pass through, reducing surface runoff and promoting infiltration into the ground.
  3. Green Roofs: Vegetated roof systems that absorb and slow down rainfall, reducing the volume and velocity of stormwater runoff.
  4. Rain Gardens: Landscaped depressions designed to capture and treat stormwater, promoting infiltration and reducing runoff.
  5. Bioretention Basins: Engineered basins that use vegetation and soil to capture and treat stormwater runoff before releasing it into the drainage system.
  6. Swales: Vegetated channels or ditches designed to convey and treat stormwater runoff, promoting filtration and infiltration.
  7. Detention Basins: Temporary storage areas for stormwater runoff are designed to control the flow rate and gradually release water.
  8. Retention Ponds: Permanent water bodies designed to retain stormwater runoff, providing water storage and promoting natural treatment.
  9. Infiltration Trenches: Underground trenches filled with absorbent material that promote stormwater infiltration into the ground.
  10. Cisterns and Rain Barrels: Containers that capture and store rainwater for later use, reducing rooftop runoff.
  11. Artificial Wetlands: Constructed wetlands that mimic natural wetland functions provide stormwater treatment and habitat enhancement.
  12. Smart Drainage Systems: Sensor-based systems that monitor and control drainage infrastructure, optimizing water flow and reducing the risk of flooding.
  13. LID (Low Impact Development): A holistic approach that integrates various sustainable design techniques to minimize the environmental impact of urban development on stormwater runoff.
  14. Sump Pump Systems: Mechanical systems designed to pump excess water from building basements or lower-lying areas to prevent flooding.
  15. Subsurface Infiltration Systems: Below-ground structures designed to store and infiltrate stormwater, often using chambers or perforated pipes.
  16. Channelization: Modification of natural or artificial channels to control and direct the flow of stormwater runoff.
  17. Water Quality Units: Filtration or treatment systems integrated into the drainage network to improve the quality of stormwater runoff.
  18. Check Dams: Small dams or barriers placed in channels to slow down water flow, reducing erosion and promoting sediment deposition.
  19. Innovative Permeable Surfaces: Advanced permeable materials for pavements and surfaces that allow stormwater to infiltrate and reduce runoff.
  20. Innovative Pipe Systems: Smart pipes with sensors and control mechanisms to manage stormwater flow and optimize drainage networks.

These systems and technologies are often combined to create comprehensive and sustainable urban drainage solutions, considering each metropolitan area's specific characteristics and challenges.

References

Altobelli, M.; Cipolla, S.S.; Maglionico, M. Combined Application of Real-Time Control and Green Technologies to Urban Drainage Systems. Water 2020, 12, 3432. https://doi.org/10.3390/w12123432