with adsb and get other data that some haven't had before, like realtime weather information. >> it's essentially sharing the same picture that the controller has with what's in the cockpit. >> reporter: controllers say the system will also give them better awareness of what's happening in flight and on the ground. >> it's a very intricate tapestry of different pieces of information. what nextgen seeks to do is cohesively integrate all the information to make the system smoother. >> reporter: because satellites provide data much more rapidly than radar the nextgen system should allow planes to fly straighter routes and closer to one another, increasing the capacity of the system and saving fuel. ultimately, the government says, passengers should benefit. >> nextgen nationally is going to give us reduction in delays 20% to 30%. >> reporter: of course, it will cost money, a lot of money. the faa estimate is $11 to $12