Jubilee Line closures

There was a time when I felt lucky to have a Jubilee line tube station a few minutes from where I live. But for the past two years, the line has been closed most weekends for engineering work which was supposed to be completed last summer. Replacement buses - some really old looking bone-shakers - trundled down my road to cover the part of the line closed. I mean to ask Mayor Boris how much the replacement bus service has cost and what do Jubilee line drivers do when the line is closed - do they have "gardening leave?" Recently, some unlucky passengers were stuck in hot carriages for up to two hours when there was a fault on the line. I regularly ask when the upgrades will be finished. The latest news indicated this Bank Holiday weekend will be a key test for the signalling system on the J5 section, hence the closure of this section of the line on Friday, Saturday and Sunday.  It should provide a good indication of progress towards final completion, now indicated to be the end of June. Here's hoping!