What's the difference between the ILS Critical Area vs ILS Sensitive Area?
I'm getting multiple conflicting opinions online.
e.g. I can't decipher from this set of definitions how exactly they differ:
The ILS critical area is an area of defined dimensions about the localizer and glide path antennas where vehicles, including aircraft, are excluded during all ILS operations. The critical area is protected because the presence of vehicles and/or aircraft inside its boundaries will cause unacceptable disturbance to the ILS signal-in-space
The ILS sensitive area is an area extending beyond the critical area where the parking and/or movement of vehicles, including aircraft, is controlled to prevent the possibility of unacceptable interference to the ILS signal during ILS operations. The sensitive area is protected against interference caused by large moving objects outside the critical area but still normally within the airfield boundary.
All I can grok is that the critical area seems some subset of the sensitive area?
Do I take this to mean no vehicles are allowed in critical area but some smaller vehicles may be allowed in the sensitive area?