By way of my friends at Youth Intelligence (I subscribe to their great Trend Central newsletter):
Musical Roads: In Japan, the Hokkaido Industrial Research Institute has
embedded grooves into sections of roads which boom a tune up through cars.
They’re in the process of planning different melodies for different locations,
picking songs that are somehow associated with the locale.
What a riot!
Maybe for the right-before-you-go-off-the-road rumble strip, they could have something like ‘Wake up little Suzie’ or ‘Hit the road Jack’ or something like that to shame to driver for veering off the road.