chapter 2 national airspace system performance the chief financial officers act of 1990 requires systematic measurement and government results 1993 gpra holds agen cies accountable for achieving specific during past 6 years department transportation s plan developed a series measures faa programs which were supported augmented by additional metrics in air traffic services has increased its emphasis on measuring how well it is meeting expectations customers managers based direction from congress that be operated as perform ance organization 1 goals key to transformation into devel opment agency can measured some these proposed have been long time presented tracked annual plans but others are more detailed examinations aviation activity much impetus creating responsive