Disclosed is a method for operation of a timber-working device (201) that is configured to perform at least one operation having an associated hazard zone (202). At least one wireless signal is received, which indicates a location of at least one object tracking device (203). The location of the object tracking device (203) relative to the hazard zone of the timber-working device (201) is then determined. At least one recommended operation of the timber-working device (201) is determined based at least in part on the location of the object tracking device (203) relative to the hazard zone (202). At least one hazard zone (202) is determined based on the likely path of an object being propelled from the timber-working device (201).
