I agree with kummini, as technology progresses it can absorb complications in language.

I was on a train station the other day and noticed the announcement referred to in the initial posting. Essentially the announcement appears to be made by stringing together words and phrases recorded by a real person (I don't think it is an entirely simulated voice). It can then account for platform & timetable changes. The gaps between words are unusually regular but it is very clear. It isn't as bad as some of the "live" (and sometimes incomprehensible) individual announcements made in the past.
I think as time goes on they will probably be able to incorporate regional accents, different ways of saying things and more "ups an downs - musicality?" into the technology, so it will be less regularised.

Having read "Longtitude" - haven't trains always played a major part in standardisation - accepting a common time throughout a country (or time zone)?