On Saturday, 14 November 2015 13:25:58 UTC, Someone Somewhere wrote:

I have to say that it cannot be beyond the wit of man to come up with
some kind of "carriage" that fits on an escalator that allows
wheelchairs to be conveyed up and down with minimal interruption to the
journeys of others.

I accept it may require a "helper" of some description but given the
closure of ticket offices, there are meant to be TfL employees out in
the wild who could help.

I am WITH you there. The lift at Hainault, all 61cm of it, shows that there is something wrong. I also saw one of these lifts in a Wetherspoon's pub in Streatham. It was the Holland Tringham. But there must be a simpler was of getting wheelchaired people up short distances.