In message , at 12:44:35 on Thu, 4 Nov
2010, tim.... remarked:
We were; I was answering you comment that "no-one is going to fit an LCD
to the far side of the platform".

But was talking about NOW (or rather a year ago), not in the future.

"is going to" sounds like it has some element of the future.
--
Roland Perry

In article ,
Paul Corfield wrote:

Cross (X) Track Projection. The great big monitor things hanging from
the ceilings that project on to blank advert panels on the trackside
walls. They're at various Central London locations.

I've only seen them once. It looked like it was set to blank when a
train approached (presumably to avoid dazzling the driver?) -- but
that could just have been coincidence.

Assuming this is the case, I'd be curious as to how this is achieved,
and whether this function is considered safety critical.

-roy