Originally Posted by
ATC Watcher
. No sure what the PD and VPD categories mean though ,
PD - Pilot Deviations (Pilot's error leading to the runway incursion)
VPD= Vehicle or Pedestrian Deviations (entering the active runway without authorisation)
and for completeness, the other entries in the table are
OI = Operational Incidents (ATC's error leading to the runway incursion)
Other = not one of the above three.
Not sure what to make of "other" - things like stray animals?