Last edited 08 May 2020

Permeability

The SuDS Manual (C753) published by CIRIA in 2015, defines permeability as:

‘A measure of the ease with which a fluid can flow through a porous medium. It depends on the physical properties of the medium, for example grain size, porosity and pore shape.

See also:

Bradford City Centre Design Guide, Supplementary Planning Document, published in 2006, suggests that permeability is: 'The ease with which people can move around an urban area. A permeable neighbourhood has plenty of streets and it is possible to move through the area by a variety of routes.'

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