acceleration meter on board
Well, the speed trend arrow should basically suffice for that, shouldn't it? Warnings about acceleration are very arbitrary anyway. Especially on four engined aircraft. On a twin, it might give up to 40kts trend, on a sluggish 340-300 out of ABB a meager 10 might be all it gives. How to program that??
I truly dread another of these possible nuisance warnings during crucial moments as the take off. Like "approaching runway xx" with RAAS when you are above 80kts and cross a intersecting runway!
Give it a break with all your well intended new devices and procedures. Just train the people adequately and give them decent rosters. The SOPs were not that bad up to now and new ones will only fix the mismanagements accountability, but not the real issue.