BikePortland.org » Blog Archive » TriMet considers 'sonic bike path' idea for new bridge

BikePortland.org » Blog Archive » TriMet considers 'sonic bike path' idea for new bridge: "The 'sonic bike path' concept is still in its early stages, but at this point, the idea is to create a series of grooves on a 150 foot section of the bikeway on each end of the bridge. The grooves would be placed in such a frequency and depth that a melody would be emitted as bicycle tires rolled over them. As for the song, the artists are considering Simon and Garfunkel's 'Feelin' Groovy.'"