Table 1: Classified operational intention modes, variables, and labels.

Variable Label Meanings

T/A-* Truck’s approach to the drilling site*
E/A-* Excavator’s approach to the drilling site*
T/P-* Truck’s positioning around the drilling site*
E/P-* Excavator’s positioning around the drilling site*
E/D Excavator’s digging
E/L Excavator’s loading of the payload
T/TU Transport of the payload by track and unloading

(*a, b, c: identifier of the drilling site).