An interesting shot - some of our trains have braille too, with a helpful translation beside them for those of us not gifted with the ability to read braille.
in grade school, we were taught how to read braille but my classmates and i couldn't help not looking. i have forgotten how to read it now, why that was about 58 years ago! did you know that in new york there's a building where the owner was adamant to have the braille buttons removed from the building elevators, even though his people said it was the law to have it there. talk about insensitivity towards the sight impaired.
Ian