Another fact in street gardening is observing how people on the street interact with it. I want it to be practical with no rules imposed. I have found that on one corner people seem to walk on it. That means that I need to find sturdy ground cover plants that don't mind being trodden on. But they also have to be drought-proof.
Or maybe the answer is to put plants that are more noticeable in this area so people naturally move around them, not through them?