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LID opportunities in industrial, commercial and multi-residential types (view source)
Revision as of 18:50, 26 September 2017
, 6 years agono edit summary
===Staff parking areas and rooftops===
===Staff parking areas and rooftops===
These areas represent the best opportunity for establishing LID practices on light industrial sites. Runoff from these catchment areas can be treated with the same suite of LID options for commercial lands.
These areas represent the best opportunity for establishing LID practices on light industrial sites. Runoff from these catchment areas can be treated with the same suite of LID options for commercial lands.
==Institutional sites==
[[File:Institutional_Options.png|thumb|LID options for institutional land use]]
Institutional sites include colleges, universities, long-term care homes, and retirement homes. While site features can vary significantly, typical features include multiple-storey buildings, large parking areas that comprise a smaller percentage of overall area than commercial sites, flat roofs with internal drainage, and significant pedestrian and common areas for public interaction.
Some institutional sites, including university campuses, will include vast networks of buildings
and interconnected pathways. Institutional sites typically have dedicated landscaping and/or operations and maintenance staff that can be trained to provide the required long-term maintenance.
===Parking areas===
Parking lots on institutional sites represent a large source of stormwater pollutants. LID designers should target these areas to improve runoff quality and reduce runoff volumes. LID options suitable for parking lot runoff include bioretention areas within parking lot islands or along the perimeter of the parking lot, bioswales along the perimeter of the parking lot, and infiltration chambers buried underneath the parking lot or along adjacent green space. Consider modular units, especially as part of a treatment train with other LID practices.
Permeable pavement is another viable option for institutional parking lot retrofits. On sites with several parking lots, consider the feasibility of modifying operations for LID practices. A site partially retrofitted with permeable pavement will likely require two separate parking lot maintenance plans: one for the conventional asphalt and one for the permeable pavement.
===Landscaped areas===
Institutional sites present many opportunities for landscaped area retrofits. Landscaped areas are often found along pedestrian pathways connecting the site’s high-use areas. These areas are ideal to establish highly visible LID practices like bioretention areas or bioswales. Landscaped areas may
also be found adjacent to buildings where they provide break areas for site users. Enhancing these areas with highly visible LID practices is another option. Gardens and parking islands in close proximity to buildings can be converted to bioretention areas and/or irrigated via a rainwater harvesting system.
To reduce site maintenance costs on large properties, site owners can consider alternative landscaping to a high maintenance lawn. No-mow or naturalized areas require minimal maintenance compared to mown grass areas and can greatly reduce site runoff by encouraging interception by tree canopies and evapotranspiration by green vegetation. Naturalized areas with cleanly mowed edges and colourful plant species can still give the impression of an orderly and attractive landscape.