The following are circumstances when Control may require the service to run without the OBS. Before applying any of the following the Resource Manager/OBS Coordinator must try to provide a replacement OBS for the service, or part of the service, where reasonably practicable.
a) OBS absent/ late on duty, or unauthorised absence, at the start of or during the duty, and where there is no alternative cover available to run this service.
b) Late notice OBS sickness / emergency leave and where there is no alternative cover available to run this service.
c) OBS delayed whilst ‘passing’ to work.
d) OBS displaced by late running or service disruption. Should c) or d) occur, arrangements must be made to restore OBS presence as soon as is reasonably possible.
e) OBS unable to continue duty having commenced booked diagram (for example through sickness or assault).
f) Driver or OBS error (e.g. If the OBS is left behind by driver and/or OBS error, or OBS misreading roster/diagram)
g) OBS has to leave the service, to cope with a passenger incident or civil emergency.