Do the trains actually run to the schedules in RTT? The whole route from Acton into the tunnels is under possession whilst this is happening so they presumably have some flexibility as to what actually happens.They seem to be using the tunnels alternately bidirectionally so one train will use the 'platform A' tunnels to & from TCR whilst the other will use the 'platform B' tunnels.
Some of the runs are from Tottenham Court Road to & from the Westbourne Park carriage sidings - will this be to test the auto-reverse feature of the CBTC?
In other class 345 news, the number of failures on Heathrow services seems not to be relenting. They lost a number of workings yesterday and the first round trip to the airport this morning only got as far as Southall on its return leg.