Simple and lovely in both concept and execution, this “green pedestrian crossing” project created meaningful interactive art with a message. A joint project of DDB China and The China Environmental Protection Foundation, this outdoor campaign used foot power to make a point about the environmental benefits of walking versus driving. Huge white canvases imprinted with a bare tree were placed across 132 crosswalks in 15 Chinese cities. Pedestrians walked across a pad filled with eco-friendly green paint and then across the canvas, leaving a trail of green footprints. Over time, the trees were filled with footprint “leaves”, a reminder that walking instead of driving helps trees, and the whole environment, to thrive. DDB estimated that over 3 million people passed through the installations, and the canvases were later hung as billboards in several cities.
More photos and a video are at This is Colossal
The Finch and Pea 