But Lord Tunnicliffe said that the London Underground deal, which established Metronet to maintain the bulk of the tube network, was based on "a very unsatisfactory business structure".

BBC: Private Finance Projects debate

The fact is we planned very fully to deal with these contingencies which are here now, and we have a system which in a very unsatisfactory state of affairs, a fire strike, is as robust as it could be.

BBC: Breakfast with Frost

New York has long had a system that rates teachers as "satisfactory" or "unsatisfactory, " with a very small percentage receiving a poor evaluation each year.

WSJ: Deadline on Evaluations

He said it was "wholly unsatisfactory" that 3% of the track was now in a "very poor" condition.

BBC: Watchdog attacks rail regulator