Surface Parking Lot
FAC-SPL-04 Surface Parking Lot
Related Media
The items below come from outside the Commonway System, external videos, podcasts, and articles related to this page's topic, not part of the guidebook itself.
Why this pattern exists
Surface lots are the most common and land-intensive parking facility, and their design choices (stall layout, stormwater handling, pedestrian access, landscaping) carry outsized impact on both the immediate streetscape and the site’s runoff and heat-island footprint. This pattern exists to document the tradeoffs specific to at-grade, uncovered parking, distinct from the structural and circulation problems a parking garage presents.
Key considerations
- Pedestrian paths through and across the lot should be clearly delineated rather than left to informal desire lines between parked cars2
- Stormwater management (permeable paving, bioswales, tree canopy) should be integrated into the lot design, not treated as an afterthought1
- Lot placement relative to the building and street matters: a lot between the building and the street undermines the streetscape it fronts
Related patterns
Parking Garage/Structure (FAC-PGS-05) (structural alternative for higher-density sites); Pervious Pavement (ELM-PVP-22), Bioswale (ELM-BIO-19) (related Element patterns for stormwater treatment); Park-and-Ride (FAC-PNR-06) (a specific use case of surface parking)
References
- Legal / regulatory EPA, Reducing Urban Heat Islands: Compendium of Strategies, "Trees and Vegetation" and "Cool Pavements" chapters (2008; Cool Pavements chapter updated 2012). Direct source for the runoff and heat-island footprint claim above.
- Precedent-based ULI/National Parking Association, The Dimensions of Parking. Circulation, stall layout, and access design standards.
"Legal / regulatory" here refers to the EPA guidance that municipal NPDES stormwater permits and heat-island mitigation programs are legally built around, not a single mandatory design spec like MUTCD or PROWAG.