FLAS Flight Level Allocation System
If I could draw a diagram it would be so much easier
Consider two busy airways/routes crossing /converging at the same point/beacon.At peak times only certain flight levels are available on each route.eg
Consider a N/S route (lets call it Upper Vermillion 1) which crosses a E/W route (lets call it Upper Lemon 2) at point C.The sector which is controlling point C will make arrangemments with the sectors/units which are presenting traffic to him/her as follows.
Northbound traffic on UV1 will be allowed to fly at FL 310 330 350 and westbound traffic on UL2 will be allowed to fly at FL 320 340
360.This cuts down coordination.As you can see it is a little bit like intertwining your fingers and when it is done properly all the a/c come out the other end safe dumb and happy
I hope this explanation makes sense(It did to me after I read it twenty times
)
AyrTC
ps There will not be any fun and games for me over the North Sea next year 'cos Im dropping the validation
