Neil Williams wrote the following
in:

Clive D. W. Feather wrote:

IIRC, there's a class of mainline train that has a *fake* push
button on it[*]. Nevertheless, the DDA Mafia insisted that it
have a Braille label.

[*] There's a good reason for this - the door in question is
operated by breaking a light beam. If your body doesn't break the
beam, reaching out to the button will.

That'd be all the Adtranz kit - when it's working - Electrostars,
Turbostars and the likes. I always thought that the Danish
approach on the IC3s of showing a pictogram of someone waving
their hand in front of the door was better, as that's far more
likely to activate the (rather pathetic) sensor than reaching for
the "button" with one finger.

Does that mean that the buttons on the trains used by C2C don't
actually do anything?

--
message by Robin May. That egotism was getting old.

Americans who voted for Bush: you ****ed up.

http://robinmay.fotopic.net