Changes

==Permeable Pavements==

==Permeable Pavements==

Please see below a profile and plan view of a drawing of a standard permeable pavement composed of interlocking pavers located in a parking lot/laneway, location independent upon estimated traffic and vehicular loading. The installation is designed with an underdrain in this drawing as the site has low permeability (< 15mm/hr), allowing for partial infiltration in the system. The permeable paver installation also includes a cleanout for said underdrain in case of clogging, and is comprised of a crushed aggregate bedding layer, clean washed stone base, and subbase (more about these layers can be found under here [[OPSS aggregates]] & [[Choker layer]]). The entire facility and these layers are surrounded by a geotextile to retain these layers and separate them from the underlying soil subgrade, allowing the system to infiltrate water into the surrounding soil and prevent migration amongst layers.

Please see below a profile and plan view of a drawing of a standard permeable pavement composed of interlocking pavers located in a parking lot/laneway (location dependent upon estimated traffic and vehicular loading). The installation is designed with an underdrain in this drawing as the site has low permeability soil (< 15mm/hr), allowing for only partial infiltration in the system. The permeable paver installation also includes a cleanout for said underdrain in case of clogging, and is comprised of a crushed aggregate bedding layer, clean washed stone base, and subbase (more about these layers can be found under here [[OPSS aggregates]] & [[Choker layer]]). The entire facility is surrounded by a geotextile to retain these layers and separate them from the underlying soil subgrade, allowing the system to infiltrate water into the surrounding soil and prevent migration amongst said layers.

Drawings are from the City of Toronto's, [https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/construction-standards-permits/standards-for-designing-and-constructing-city-infrastructure/construction-specifications-drawings-for-green-infrastructure/?accordion=green-infrastructure-drawings Design Criteria for Green Infrastructure in the Right-of-Way] <ref>https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/construction-standards-permits/standards-for-designing-and-constructing-city-infrastructure/construction-specifications-drawings-for-green-infrastructure/?accordion=green-infrastructure-drawings Design Criteria for Green Infrastructure in the Right-of-Way </ref> document. For further details about these cross section drawings please visit the link.

Drawings are from the City of Toronto's, [https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/construction-standards-permits/standards-for-designing-and-constructing-city-infrastructure/construction-specifications-drawings-for-green-infrastructure/?accordion=green-infrastructure-drawings Design Criteria for Green Infrastructure in the Right-of-Way] <ref>https://www.toronto.ca/services-payments/building-construction/infrastructure-city-construction/construction-standards-permits/standards-for-designing-and-constructing-city-infrastructure/construction-specifications-drawings-for-green-infrastructure/?accordion=green-infrastructure-drawings Design Criteria for Green Infrastructure in the Right-of-Way </ref> document. For further details about these cross section drawings please visit the link.