38. Turn a parking space into a park. Bustling streets can do much more than handle automobile traffic. That’s the idea behind Park(ing) Day, a worldwide event that encourage artists and designers to turn metered parking spots into temporary community installations. The concept has even become city policy; the Ground Play program allows sponsors in San Francisco to test similar projects and turn some into permanent public spaces, as does the People Street initiative in LA.
Also, 1 car parking space = 10 bicycle parking spaces. Put a bike rack next to any other pop-up activity space and instantly increase the activity. And bike traffic boosts the economy.