Infrastructure Booking Advices (IBAs) are used to tell Network Control Officers that infrastructure is:
Maintenance Representatives and Network Control Officers jointly fill out IBAs.
Infrastructure Booking Advices (IBAs) are used to tell Network Control Officers that infrastructure is:
Maintenance Representatives and Network Control Officers jointly fill out IBAs.
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Track Work Authorities (TWAs) allow track work on running lines between rail traffic movements.
To prescribe the rules for recording and notifying changes to the Network for: the temporary or permanent installation or removal of infrastructure, and booking infrastructure into or out of use.
Separate work groups may occupy the portion of track defined by a Local Possession Authority (LPA). The Possession Protection Officer is responsible for the overall protection of workers & worksites under an LPA.
