2.3 Total Possession

A Total Possession is less than 60 hours in duration and prevents all rail traffic (including mandatory trains and ad hoc traffic not included in the Possession) from accessing a section of the network and may require traffic to be diverted to another track or route.
All planned network activities that result in the suspension of the normal system of safe working, the introduction of a temporary system of safe working (eg. Pilot Staff Working, Train Authority Working, Train Order Working etc.), or will result in train delays require a Total Possession Request.