2016 CBA
Tentative Agreement
Page 211 of 217
For each day and the prior 364 days (i.e., use a 365 day count):
1. Divide the Center Airspace Mileage by X square miles.
2. Calculate the density add - on (average weighted hourly count (H) /density (1. above) x
Y).
Remove Center Ar ea from the glossary.
Change Center Airspace Mileage definition to:
Center Airspace Mileage - A center facility's cubic mileage from the top of each square
mileage segment of MIA or ceiling of approach control airspace (whichever is higher) up
to and in cluding FL410 within a center facility's lateral boundaries minus any unusable
airspace.
Add Unusable Airspace definition to the glossary:
Unusable Airspace - The average cubic mileage of the total of a center facility's active
Restricted Area, Warning Area, Prohibited Area, ATCAA, and MOA airspace during the
busiest 1,830 hours annually.
