GDPs in Support of SWAP Initial Concepts

CDM A&D Meeting.

January 24, 2001

24 Jan 01 CDM A&D Meeting 2

There are Two Goals in the Use of GDPs in Support of SWAP Reduce Airspace Demand Reduce Arrival Rates to Avoid Airport

Gridlock

Background

24 Jan 01 CDM A&D Meeting 3

Airspace Demand Reduction

When Severe Weather requires Flight Re-Routes, the overall airspace capacity in the region around the weather is reduced Flight Demand on the Airspace must be

Reduced This only affects flights near the

weather

24 Jan 01 CDM A&D Meeting 4

Airport Demand Reduction

However, Severe Weather that is Close to a Major Terminal Area can Severely Limit the Departure Flow from the Airport Since this can lead to Gridlock, the Entire

Flow to the Airport must be Slowed This affects all flights destined for one of

the affected Terminal Areas

24 Jan 01 CDM A&D Meeting 5

Solutions

Potential Solutions have been described by Rick Oisen Including Various Uses of FSM or SMT

Focus Here on Specific Uses of FSM and Airport GDPs What Can We Do to Improve GDPs in

Support of SWAP With the Tools that we Have Today?

24 Jan 01 CDM A&D Meeting 6

Approach – Previous

GDP/SWAP Decision Guidance FlowchartHistorical Airspace Demand Including

Arrival/Departure AirportsBetween CentersThrough ArcsThrough SectorsThrough Common FCAs

Suggested Airport GDPs with RatesWhich Airports & What Rates

• Between Centers• Through Common FCAs

Sample Reference Tablefor ZOB to ZNY Flows

Historical

Airport Demand Total from ZOB 95% 90% 85% 75% 65% 50% 40%EWR 257 42 20 34 33 31 28 25 20 16PHL 222 58 15 52 50 48 44 38 30 24LGA 169 44 12 36 35 34 32 28 22 18JFK 164 28 17 24 24 23 21 19 16 13TEB 110 22 10 18 17 15 13 10 8HPN 70 16 8 10 7 6MDT 56 8 6ABE 25UNV 20AVP 15BDR 2BGM 4

Suggested Arrival Rates to Achieve Demand ReductionMax Hourly

ZOB to ZNY

24 Jan 01 CDM A&D Meeting 8

ATCSCC Personnel Input

Cannot Readily Determine % Reduction of Airspace Capacity

Majority of SRV WX Events Become An Airport Event

Need to Determine Departure Rate to Set Arrival Rate

Known Factors Are Route Status / MIT

24 Jan 01 CDM A&D Meeting 9

Approach – Revised

Historical Departure Demand From Major Terminal Areas Broken-Down by Departure Route

Predicte Departure Delays, based on Departure Fix/Route Closures Miles-in-Trail Restrictions on Departure

Fixes/Routes

Allow Determination of GDP Rate Based on Predicted Departure Delays

24 Jan 01 CDM A&D Meeting 13

Schedule

Spring 2001 Quick Development of Paper Based

Guidance

In the Future / Summer ‘02 Guidance can be Added to Existing or

New Tools