The ON/OFF team assembled the 4-meter-tall BOULEvard ball with high-tension rope and large black plastic tubing that served as the core struts. The tensegrity structure was large enough to roll over bollards and flexible enough to squeeze through tight corners. Most importantly, the sturdy mobile playground was designed with safety in mind as well as input from community workshops.

Related: Lloyd Godman’s experimental air plant sculpture teaches students about tensegrity

“The BOUELvard allowed kids from the city to crave a new path through their area, one which crosses typical barriers like roads and no-play zone,” says ON/OFF. “Like its structure, the BOULEvard is playful but tough, it claims space back for play allowing for the temporary take over of everyday space for action.” By blurring the boundaries between play and non-play in the city, the BOULEvard urban intervention successfully shows how malleable and dynamic cities can be.

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