Had a visit to Earls Court yesterday. Interestingly, it was possible to walk along the westbound platforms in order to gain access to the Piccadilly line escalators., although the platforms themselves were fenced off. You could also walk down to the eastbound platforms, but only to gain access to the emergency stairs. It was quite a surrral atmosphere! Lots of people walking around looking very confused, and the only staff who were assisting were the engineering workers!