open-grid pavement system
Pavements that consist of loose substrates supported by a grid of a more structurally sound grid or webbing. Pervious concrete and porous asphalt are not considered open grid as they are considered bounded materials. Unbounded, loose substrates do not transfer and store heat like bound and compacted materials do.
First 10 image search results of open-grid pavement system architecture
Jargon of the day: negative/positive space
See: Solid/Void
