I can see the reasoning behind it all: makes investigation easier and can reduce confusion at handover if the bays are set out the same....but aren't we all professionals who have developed a perfectly sensible system to operating..?
Seems like Ops have got too much time on their hands...!
Has an incident been attributed to bay layout or pen colour? If it hasn't then has a safety case been published saying that it could? Did the suggestion go through the Tech Com?
...and blocker strips go in the bay in relation to its position in traffic indicating what traffic is blocked!
Get it sorted guys...despite what little confidence in us you have; we do know what we're doing!!!
