FAAXX603: Time Based Flow Management (TBFM)

TBFM supports the NextGen Metrics of Improved Management of Arrivals/Surface/Departure Flow Operations-104117- and Time-Based Metering in the Terminal Environment-104128 with the development and implementation of Terminal Sequencing and Spacing (TSAS) capability. Work Package 2 completed in November 2014 had a benefit/cost of 1.31 documented in the April 2010 Final Investment Decision (FID). Benefits of TBFM internal to the government are reduced logistical footprint vs.TMA, minimize occurrence of unused slots thereby reducing total delays, provide TBFM information to other systems to improve collaboration in support of RTCA Task Force 5 recommendations #24 and #35, increase the accrual of TBFM benefits through additional deployments, and extend Time Based Metering in support of NextGen. Benefits of TBFM external to the government are: reduction of total delays in the NAS, enhanced efficiency in the NAS to optimize demand and capacity, more accurately deliver aircraft to the TRACON while providing the opportunity for aircraft to fly optimized descents, and lower impact to the environment based on lower fuel burn due to more efficient flight paths. The ROI for TBFM Enhancement 1 reflects a benefit/cost of 2.84 as documented in April 22, 2015 FID. Efficiency benefits of TBFM internal to the government are reduced delay resulting from reduction in missed slots in overhead stream, reduced flight time and fuel burn. The Capacity benefit is reduced delay resulting from more accurate runway delivery by TSAS. One TBFM capability, Integrated Departure/Arrival Capability (IDAC) provides the ability to automate the coordination for departures between towers and Air Traffic Control Center (ARTCC) that improves communication and reduces workload. IDAC dynamically integrates departures from multiple airports within a Center into the en route stream. Through June 2022, IDAC has been deployed to 11 ARTCCs and their associated towers. TBFM will provide added benefits in future enhancements in FY2023 and beyond.

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