there's a sign at ExCeL about public rights of way closures during DSEi.
Here's the text on it:
Custom House DLR to Royal Victoria Dock Bridge
11-18 Sept
23.59-23.59
Prince Regent Station to Dock Edge
11-18 Sept
23.59-23.59
Dock Edge Public Realm from Corniche to Connaught Cut
08-18 Sept
23.59-23.59
Royal Victoria DLR to Dock Edge
11-18 Sept
23.59-23.59
Royal Victoria Dock Footbridge
11-18 Sept
23.50-23.59
Email info@excel-london.co.uk with queries.
Apparently a 'corniche' is a winding road at the top of a cliff or
something, and in this context it means the west side of the dock. So basically you won't be able to get to the north side of Royal Victoria Dock from Thursday (8th Sept).