Changes

===Extend drainage flow paths===

===Extend drainage flow paths===

Slowing down flows and lengthening flow paths allow more opportunities for stormwater to be filtered and infiltrated. Extending the travel time can also delay and lower peak flows.  Where suitable, flows should be conveyed using vegetated open channels (see [[Enhanced grass swales]] and [[Bioswales]]).

Slowing down flows and lengthening flow paths allow more opportunities for stormwater to be filtered and infiltrated. Extending the travel time can also delay and lower peak flows.  Where suitable, flows should be conveyed using vegetated open channels such as [[enhanced grass swales]] or [[bioswales]]).

==References==

==References==

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[[category:planning]]

[[category:planning]]