Why is water sensitive urban design?

Why WSUD? WSUD aims to improve the ability of urban environments to capture, treat and re-use stormwater before it has the chance to pollute and degrade our creeks and rivers.

What is a water sensitive city?

A water sensitive city is based on holistic management of the water cycle to deliver basic services of supply and sanitation, while mitigating flood risk and protecting and enhancing the health of receiving waterways.

What is WSUD stand for?

Water sensitive urban design
Water sensitive urban design (WSUD) is an approach to planning and designing urban areas to make use of this valuable resource and reduce the harm it causes to our rivers and creeks.

What are aspects of the water cycle that are used in water sensitive urban design?

drinking water supply; reused and recycled water; waste water management, and. urban run-off management.

What is a Bioretention system?

A bioretention system consists of a soil bed planted with suitable non-invasive (preferably native) vegetation. Vegetation in the soil planting bed provides uptake of pollutants and runoff and helps maintain the pores and associated infiltration rates of the soil in the bed.

What is the purpose of a Bioswale?

Bioswales are storm water runoff conveyance sys- tems that provide an alternative to storm sewers. They can absorb low flows or carry runoff from heavy rains to storm sewer inlets or directly to sur- face waters.

What is water sensitivity?

Each test method evaluates water sensitivity by determining resilient modulus or Indirect tensile strength, or both, of a compacted specimen before and after moisture conditioning. Conditioning of the samples is performed by vacuum saturation to predeter- mined levels and, in some cases, freeze-thaw cycles.

What is permissible site discharge?

Permissible Site Discharge (PSD) The PSD is the maximum allowable post-development discharge from a site for the selected discharge design storm and is estimated on the basis that flows within the downstream stormwater drainage system will not be increased.

What is bio basin?

Bioretention basins are landscaped depressions or shallow basins used to slow and treat on-site stormwater runoff. Stormwater is directed to the basin and then percolates through the system where it is treated by a number of physical, chemical and biological processes.

What is a bio retention swale?

Bioretention swales are shallow, vegetated, landscaped depressions with sloped sides. They are designed to capture, treat and infiltrate stormwater runoff as it moves downstream.

What is the difference between a bioswale and a rain garden?

Rain Gardens versus Bioswales The main difference is that the bioswale moves water to somewhere else in the garden, while also allowing some (but not all) of it to infiltrate. A rain garden is specifically meant to increase infiltration. Bioswales are often used to convey water to a rain garden.

What is a bioretention pond?

Bioswales and bioretention ponds use plants and soils to infiltrate and treat stormwater runoff. Bioretention ponds are depressed vegetated areas that capture and store stormwater runoff and can work in combination with bioswales.