I am glad to hear of the improved availability of escalators, but also rather surprised. When my constituents and I use the London underground system we often find the escalators out of use. At Greenford station in my constituency the escalator has been out of use on three occasions in the past 18 months to two years, including six months during 1990. As that means elderly constituents of mine having to use the longest staircase on the London underground, will my hon. Friend ensure that the escalator at Greenford station is permanently available from now on?