This lack of situational awareness resulted from procedural errors. The Rail Motor Driver departed Top Points without communicating his intention to his Guard or the Hi-Rail crew, and the Rail Motor Guard exceeded his authority by authorising the Hi-Rail to leave a worksite and proceed to Top Points.
A lapse in situational awareness occurred due to procedural errors. The Rail Motor Driver's failure to communicate his intentions resulted in the Rail Motor Guard taking actions beyond his authority, ultimately leading to the Hi-Rail departing a worksite and traveling to Top Points without proper clearance.