“At Northside Festival 2018 all plastic trash is collected and reused. This year plastic plates made from last year’s recycled beer glasses were collected at a special collection station connected to a large lighting installation. When users deposited a plate into the recycling station, they were rewarded with light pulses through sixteen large beacons, spanning the entire 160 metres of the festival grounds. The aim was to nudge more users into sorting and recycling materials.” Excerpt from Kollision’s website.
(Media from Kollision’s website)