This piece from The Tyee offers ideas about how to recreate streets into lively public green spaces.
"An easy way to free up space in our cities would simply be to require that if you have a parking spot on your property, you use it. Leave the public space for public use."
"So how much space is there, and what could we do with it? Google Maps shows my block is 850 feet long and a little quality time with a tape measure finds the distance between sidewalks is 41 feet, so in just one block we have 34,850 square feet to play with."
"First, let's make it a one-way street, one lane wide, with a couple of pullouts. This maintains access for emergency vehicles, taxis and mini-buses for wheelchairs. We could also throw four spots for visitors into each block. At one end we can put a half-court for basketball, street hockey, skateboarding or rollerblading so once again shouts of "Car!" will mean the players get a short break. For the rest of the block, I propose gardens. We have enough space left for 150 very nice garden plots, each about 3 by 4 metres, plus walkways."
"Or, we could continue to enjoy the heat rising off the asphalt, with the rich visual stimulus of dented bumpers and the sound of car alarms."