17 years of using the greens at LHR, there's nothing to beat it. Discontinue the system and you get more r/t and more time spent with eyes in looking at taxy/parking charts instead of outside looking for hazards.
TopBunk
I would rather you pushed for leaving the stand guidance on permanently to allow us to park without blocking taxiways than keeping the red/greens switcheable.
I regret that I cannot support you on that one. Red Cap/Dispatcher/whoever should only switch on the guidance when they have ensured that the stand is clear. In that confined space (especially at night) I like the belt to go with my braces.
YS