Up in the hill behind the Dairy Unit at Cal Poly is the Leaning Pine Arboretum. I went up there today after practise and had a little walk around (the gates theoretically get closed at five, so I curtailed my walk, but they were not closed when I did leave at five fifteen, plus I found what appears to be a pedestrian entrance).
Like everything else at Cal Poly, the arboretum is a learning project in progress, which means that there are sections which are looking a trifle experimental as well as mature, evolved designs.
Here's an example: a section of the garden had a swath of this drivable lawn paving material in it. You lay the pavers down and plant grass in the pockets, and it fills in and looks like a lawn while still having the structural integrity to support, say, a firetruck or ambulance in case of an emergency. A nice way to have your emergency access and reduce your overall paved area.
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