What speach program do national rail or other uk train companys use?

There is an article in the current edition of Railway Magazine about a trip taken by a guy using a North West Rail Rover. He said the only thing that spoiled his trip was the ghastly plummy accents of all the station announcers! The won;t use a program as such, the announcements are prerecorded, probably using some one who has had 'elocution lessons'