The Minister may have helped the hon. Member for Ealing, North (Mr. Greenway) with his escalator problem, so would he like to visit Stockwell and Oval stations on the Northern line, where half the escalators have been out of action for a long time? Is it right that it should take a minimum of 16 weeks to fix an escalator? Would the hon. Gentleman like to give my area the prompt attention that he gave Ealing?