Hi. I live in Japan in a city just outside Tokyo, although only for a few more weeks. Before a train's doors close here, a jingley little tune gets played to warn people still descending the steps to the platform they need to hurry up. The variety of tunes available depends on the line you're on and they reflect a wide range of human emotions; contemplative, happy, rushed, peaceful etc.
Does anyone think this idea would work well in the US or UK, or if it might just prove too annoying for commuters?