BusyB
The traffic through D5 would be all the T2 stuff, west apron/remote (stands 60> .. so all the B74F's/Air Contractors/Jet2 remotes etc) plus the T1 C pier traffic (stands 21>) and with the entrance to Lima before D5 currently blocked due WIP the T1 stands off Lima.
Basically almost all of the "non-domestic" stuff and anything going remote.
Traffic for T3 and Ocean Sky are unlikely to use D5.
So that's quite a high proportion of the a/c passing through D5 .. shame there's not much feedback.
The ultimate usefulness or otherwise I suppose will really depend on the reasons for the incursions in the first place.
Are they due to misunderstood instructions or folks believing they've been given a clearence when it's not the case.......?
If used in a live system and being switched off with the stop bar then maybe it would help?