Definition

Pervious surfaces are mainly natural surfaces that allow water to percolate through to the area underneath rather than becoming runoff.


Layer details

AI PacksSurface Permeability
StatusProduction
Includes
  • Hard/compact dirt and gravel
  • Pervious surfaces not at ground level such as a rooftop garden
  • Synthetic grass such as Astroturf
Excludes
  • Potted plants
  • Tree overhang on hard surfaces; for example tree overhang on buildings, asphalt or concrete surfaces
  • The area inside swimming pools
  • Polymeric surfaces
  • An extensive area of flat hard rock where tree or plant roots cannot grow
  • The area under decks, balconies, and the attaching staircases
Product-specific Terms and Conditions


Layer specifications (Offline Vector)

Attribute NameData TypeAttribute Data Type (Example)Comments
AiVersionvarchargen4-building_storm-offline-243a04aab02a0a78e0f427c626563670
Idvarchar000baa00-025c-54b3-9025-dbdc68054c7cGUID
FeatureClassIdvarchara2e4ae39-8a61-5515-9d18-8900aa6e6072GUID
DescriptionvarcharBuildingName of the layer
FeatureStatusvarcharProduction
SurveyDatevarchar2020-12-03ISO8601 format (YYYY-MM-DD)
ParentIdvarchar

Confidencedouble0.9941406250-1 Probability Distribution
AreaSqmdouble174.0997438
AreaSqftdouble1873.992233
ClippedAreaSqmdouble174.0997438
ClippedAreaSqftdouble1873.992233
UnclippedAreaSqmdouble174.0997438
UnclippedAreaSqftdouble1873.992233


Examples