The RMT Union is planning a strike on the DLR (Docklands Light Railway) in London.
They haven't announced a date or dates yet, and there is no indication what damage a strike would do to riders' plans.
The DLR is the automated adjunct to the Underground in East London and Greenwich.
Much of the area reached by the DLR is duplicated by Underground lines, buses and heavy Rail.
Stay tuned, particularly if you will be in the East London, Docklands, and Greenwich areas.