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NextGen. Current System. Primary Radar – Creates blip on Radar Screen. Secondary Radar – Aircraft encodes identifier and telemetry data. VHF Radio – Voice Communications. ATC Radar Screen. ATCO. Surveillance Radar. Goals Remain the Sameqwqq [[[. Aviate Navigate Separate.

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Nextgen

NextGen


Current system

Current System

Primary Radar – Creates blip on Radar Screen

Secondary Radar – Aircraft encodes

identifier and telemetry data

VHF Radio – Voice Communications

ATC Radar Screen

ATCO

Surveillance Radar


Goals remain the sameqwqq

Goals Remain the Sameqwqq[[[

  • Aviate

  • Navigate

  • Separate


Nextgen using 21 st century technology to

NextGen: Using 21st Century Technology to:

  • Increase Capacity

    • Increasing Airport/Airspace Capacity

    • Reducing complexity for Air Traffic Controllers

  • Simplify Communication

  • Reduce Maintenance Costs

  • Improve Environmental Impact

  • Maintain or Improve Traditional Safety Standards


Increase capacity build

Increase Capacity: Build

  • Build More Runways: reduce bottleneck for takeoffs and landings

  • Open up additional Airspace


Increase capacity utilization

Increase Capacity: Utilization

  • Reduce Distance between following Aircraft

    • Use Required Navigation Precision (RNP)

    • Automatic- Dependent Surveillance –Broadcast to provide ATC exact aircraft location

    • Cockpit Display of Traffic (CDTI)

    • Digital Communications

  • Reduce Distance for Aircraft on Parallel tracks

    • Use Required Navigation Precision (RNP)

    • Automatic- Dependent Surveillance –Broadcast to provide ATC exact aircraft location

    • Digital Communications


Increase capacity coordination

Increase Capacity: Coordination

  • Eliminate unused slots by coordinating flow

    • Spacing and merging

    • Super dense operations

    • Utilize digital communications


Increase capacity reduce atc complexity

Increase Capacity: Reduce ATC Complexity

  • More Accurate Aircraft Location

    • Use Relative Position Indicator (RPI) to merge arrival flows, sequence and space aircraft

    • Automated Terminal Proximity Alert (ATPA) to help monitor final approach

    • Converging Runway Display Aid (CRDA) uses visual runway spacing cues on converging runways to aid in spacing

    • ADS-B

    • Reduces uncertainty

  • Digital Communications

    • Reduces uncertainty or need to re-transmit

    • Reduces Routing information errors


Reduce maintenance costs

Reduce Maintenance Costs

  • Radar network spread across the continent

    • Maintenance of actual radar

    • Build/maintain roads to remote locations

    • Build/maintain facilities in remote locations

    • Aging Infrastructure


Improve environmental impact

Improve Environmental Impact

  • Use of 4-D to make orchestration more optimal

  • Efficiently moving traffic reduces

    • Noise

    • Fuel burn

  • Flying at higher altitudes

    • Reduces fuel burn and pollution


Challenges

Challenges

  • Technology Cycle

    • How do we integrate a system of systems that is constantly changing

  • Who incurs the cost and when?

    • Needed capability – managing new and old system

    • Incremental capability – start easy and move on


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