How often would you choose stairs over escalators? Study finds that more than 99 % of the people choose escalators over stairs. Sponsored by Volkswagen, The Fun Theory.com conducted an experiment at a metro exit in Stockholm, Sweden, where they covered the stairs with patterns that look like piano keyboards. ( and they do make sounds) With the change of patterns, people who used stairs rather than escalators increased by more than 66%. ( See the link below for the video). This fun experiment not only shows how people can be motivated to exercise, but most importantly shows how human behaviors can be changed by design elements around them.
For the video of the experiment, check Piano stairs