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Green parking lots are a new form of parking lot design intended to be environmentally more sustainable. Both the City of Toronto, Canada and the United States Environmental Protection Agency have released standards as to what will be considered a green parking lot. According to the Toronto guidelines the purpose of a green parking lot is to use all the left over spaces in parking lots in more environmentally friendly manners and also to make changes to parking lots that, without interfering with their ability to serve as a parking lot, do not have as great of a negative effect on the environment.[1] The Environmental Protection Agency has released similar guidelines Refering to a Green Parking Lot as any lot which contains environmentally preferable features.[2]
Minimized Impervious Surfaces
[edit]The largest feature of the parking lot is its paved area, hence, by changing this surface to be more permeable to water the parking lot will drain better. Some surface options are open joint pavers, porous asphalt, previous concrete, or a turf grid. Drainage is an important part of a green parking lot because runoff is a serious concern. In addition to using a more porous surface more porous subsurface may be used to maximize drainage through the parking lot surface. Drains and low lying areas for water retention can also be components of a green parking lot.
Bicycles
[edit]Another component of green parking lots according to Toronto's guide is locations for bicycle storage.[1] As bicycles are more environmentally friendly than cars it is important for a green parking lot to contain a bicycle rack.
Lighting
[edit]While it is necessary for there to be lighting in a parking lot in green parking lots for security purposes it is important to balance this need with minimal energy consumption. Green parking lots often use scaled lighting shorter lighting where pedestrians or bicycles will be a higher lighting in areas where cars are to minimize over lighting of areas that don't need to be lit. Green parking lots may also power the lighting using solar or wind among other renewable forms of energy.[1]
Vegetation
[edit]Vegetation used surrounding and within green parking lots varies with location. Vegetation used should be native to the locations so that it will require no or little additional watering to the rainfall the location will already receive. For this reason grasses like Kentucky Blue Grass should not be used in many areas as this grass requires large amounts of water.[2] Trees are also good vegetation as they provide shad and generally have lower water requirements.[1]
References
[edit]- ^ a b c d "Design Guidelines for 'Greening' Surface Parking Lots" (PDF). Toronto City Planning. City of Toronto. January 2013. Retrieved October 8, 2015.
- ^ a b "Green Parking Lot Resource Guide". National Service Center for Environmental Publications. EPA. February 2008. Retrieved October 5, 2015.