Originally Posted by
bookworm
In any aspect of risk management, it's important to quantify real risk. If we don't do that, we end up in a world dominated by perceived risk where the management decisions are taken on the basis of tabloid "Phew-that-was-close" headlines.
"SSE" and "loss of separation" is all very well as labels. But aircraft don't occupy a volume of 100 cubic miles, thus "loss of separation" and "collision" are very different things.
I'm only a humble atco, some folk much cleverer than me (including from the scientific community) have come up with our SSE scale and that's what we use to score events.
The scale goes in to far greater detail than posted in Rustle's brief synopsis so don't make too many assumptions based on the very brief details you've seen here and don't assume I or anyone else is going to go into any greater detail on an internal NATS system on this forum
WF.