ASLEF have today announced a strike on Friday 1 September.
This is in addition to the RMT strike the following day.
ASLEF strikes (the train drivers in simple terms) are generally more disruptive than the RMT strikes- for instance Avanti have so far been unable to run any service on an ASLEF strike day.
Details of services to follow in a week to 10 days time, but expect and plan for severe disruption.
They will also ban overtime on Saturday 2 September, so that day will be more disruptive than 26 August. Plans B and C should now focus on other modal choices that day.