"PARK(ing) Day is a annual open-source global event where citizens, artists and activists collaborate to temporarily transform metered parking spaces into “PARK(ing)” spaces: temporary public places".
The aim of this special day is to call attention in order to get more urban open space and to improve the quality of urban human habitat.
So it is not about annoying car owners or people willing to park in 140 cities around the world. The way it works is simple.
Go to a parking space, put the money in the meter for the length of time you wish but rather than parking your car, install a strip of lawn, a tree and a bench...and enjoy that "green" space until the meter expires. There is nothing illegal in this as the space is paid.
It is an ecological demonstration to wake-up the world about the global climate change situation.
And although the project is temporary, PARK(ing) Day hopes to inspire more and more participants to be pro-active.
Rebar is behind this movement. It is is an interdisciplinary studio based in San Francisco and operating at the intersection of art, design and activism.