The small oasis would ideally occupy one parking space for one day or a public space, creating a relaxing space for people to enjoy and a breath of fresh air!
-2 Person in charge (20$/hr x 35hr x 52 weeks)
= 36 400$ x 2= 72 800$ (these people would be in charge of setting up the oasis each week (10h) and being around to explain and make sure everything goes well (25h)
-Small oasis (benches, grass patch, chairs, balloons) and storage space = 60 000$
Total =132 800$
In winter, the small oasis could still work! Offering a bench that is not plenty of snow and small bushes in surrounding to enjoy!