Obstruction means any circumstance relating to the whole or any part of the Infrastructure, including Rollingstock, debris or other objects on the Infrastructure, which has the potential to cause a disruption to or cancellation of Train Services or Train Movements, and includes any Network Incident but does not include an Operational Constraint imposed by Aurizon Network.
Pedestrian means any person afoot.
Fence means any structure, including a retaining wall, used or functioning as a barrier, irrespective of where it is located and includes any gate;
drain means (subject to Section 219(2) of the 1991 Act) a drain used for the drainage of one building or any buildings or yards appurtenant to buildings within the same curtilage;
Pests means Birds, Vermin and Insects.