#230 2009 · Volkswagen · Public transit / behavioral designredesign-the-moment
Volkswagen turned a Stockholm subway staircase into a giant piano, and commuters chose it over the escalator beside it
the problem
Health campaigns urging people to take the stairs rarely change what people actually do at the moment of choosing
background
At Stockholm's Odenplan station, a staircase sat beside an escalator, and the standard toolkit for this exact problem — health posters, 'take the stairs' signage — had already been tried in transit stations everywhere and moved almost nobody: an escalator is effortless and a staircase isn't, and no printed encouragement changes that physical fact at the moment someone actually chooses.
Volkswagen Sweden and DDB Stockholm were testing a broader premise — that fun, not virtue, changes behavior — to launch VW's fuel-efficient BlueMotion line. They needed a real public space and a real behavioral baseline to demonstrate it, not a lab study or another poster campaign.
the move
Overnight, DDB Stockholm wired every step of the Odenplan staircase to play a piano note when stepped on, turning the staircase itself into a playable instrument next to the escalator — no signage, no health message, just an instrument nobody was told to use.
the payoff
Widely and consistently reported at 66% more commuters choosing the stairs over the escalator compared with a normal day. The primary Volkswagen press release could not be directly confirmed here — it blocked automated access on repeated attempts — but the figure is stable across every independent secondary account checked, including trade press. The film became the flagship demonstration of Volkswagen's 'Fun Theory' campaign.
what came after
The piano staircase became one of the most-cited pieces of applied behavioral design of its decade — a fixture in psychology and marketing courses, not because the story is untrue but because it demonstrated something genuinely non-obvious: that novelty beats health messaging at changing an in-the-moment physical choice. Imitators have installed piano or game-like stairs in transit stations and offices worldwide, almost always as temporary installations rather than permanent fixtures.
filed under
references
- [1]Ad Age — Volkswagen: Fun Theory Piano StaircaseAd Age, 2009adage.com
- [2]Classic FM — This piano staircase social experiment revealed how music makes everything betterClassic FM, 2022classicfm.com