Is that a whiff of beer hops? You’re in Ebisu. Warm crepes? That’ll be Harajuku. Smell an ocean breeze? Hamamatsu-cho awaits.

If all goes according to plan, all 30 stations on the Yamanote, Tokyo’s central loop line, will have unique “scent alerts” functioning much like the current platform melodies.

— East Japan Railway Co experiments with scent as a cue that it's time to get off the train. Read more at ‘Scent alerts’ for train stations set to cue JR’s distracted commuters at The Japan Times.