A TfL press release dated the 20th September 2016 states: "Network Rail is carrying out major work including lowering four major sections of track, installing structures to carry the overhead wires and rebuilding four bridges. The first phase of the work started in June with no service between South Tottenham and Barking during weekdays and a full line closure at weekends. From Saturday 24 September to February 2017, a full closure in both directions from Gospel Oak to Barking is necessary to carry out the second phase of the work. TfL will be providing rail replacement buses, which will operate along the route." Please state (a) whether this proposed timetable is being kept to, (b) when exactly during February 2017 a full closure between South Tottenham to Barking during weekdays and a full line closure at weekends will be completed.