The reason given last night for the closure of Bank DLR station was
faulty ventilation equipment in one of the tunnels between Shadwell
and Bank. I assumed it was the same problem this morning. Bank DLR is
closed all too often these days which is a pain while Tower Gateway is
closed and there is no East London Line from Shadwell.

This evening, dodgy signals were to blame for the fact they were
running a shuttle between Lewisham and Cutty Sark and between Cutty
Sark and Bank.