CDM GDPE Prototype Operations Review CDM Meeting August

CDM GDPE Prototype Operations Review CDM Meeting August 4, 1999 Metron, Inc.

Overview z Prototype Operations Review and GDP Statistics z Compression Benefits by Airport y Jan. 20, 1998 - Jul. 15, 1999 z Compression Benefits by Airline y Sep. 8, 1998 - Jul. 15, 1999 z Delay Reduction Distributions y Mar. 18, 1999 - Jul. 15, 1999 z Planned vs. Actual Scheduled Compression Benefits y Apr. 1 - Jun. 30, 1999 CDM Prototype Operations Review

GDP Counts Trend CDM Prototype Operations Review

Cumulative GDP Counts Trend CDM Prototype Operations Review

GDP Trends by Airport CDM Prototype Operations Review

GDP Statistics over 9 Months CDM Prototype Operations Review

Average Hours per GDP CDM Prototype Operations Review

Hourly Rate of Compressing GDPs CDM Prototype Operations Review

Hourly Rate of Compression Minutes Saved during GDPs CDM Prototype Operations Review

Rate of Compression Minutes Saved per Compression Cycle CDM Prototype Operations Review

Compression Benefits Jan. 20, 1998 - Jul. 15, 1999 CDM Prototype Operations Review

Compression Benefits Trend Jan. 20, 1998 - Jul. 15, 1999 CDM Prototype Operations Review

Compression Benefits Milestones Jan. 20, 1998 - Jul. 15, 1999 CDM Prototype Operations Review

Compression Benefits by AOC Time Period: September 8, 1998 - Jul. 15, 1999 1091 Compression Cycles: Non-CDM participants compressed starting October 13 th AWE, MEP, FDX new participants in February 1999 CDM Prototype Operations Review

Compression Benefits by Airport and AOC (Sep. 8, 1998 - Jul. 15, 1999) 2, 833, 730 total minutes reduced due to compression Average of 63, 987/week and 9, 141/day * AWE MEP: participants starting Feb. 1 FDX: participant starting Feb. 16 CDM Prototype Operations Review

Delay Reduction Distributions Due to Compression z. Data Included in Analysis: y. All compression from Mar. 18 - Jul. 15, 1999 (521 compression cycles in 190 GDPs) y 96, 603 flights included y 1, 105, 012 total minutes reduced CDM Prototype Operations Review

Delay Reduction Distributions Due to Compression - Results z Resulting Statistics: y. Average reduction: 11. 5 minutes y. Median reduction: 2 minutes z Percentiles: y. Reductions 15 30 45 60 minutes or or greater: CDM Prototype Operations Review 19% 11% 5% 5%

Delay Reduction Distributions Due to Compression - Histogram CDM Prototype Operations Review

Flight Delay Assignment History Example CDM Prototype Operations Review

Actual Scheduled Compression Benefits Methodology z. All flights which were later revised prior to departure were removed z. All flights which never flew were removed CDM Prototype Operations Review

Actual Scheduled Compression Benefits Results z Data Set Used: y. Apr. 1 - Jun. 30, 1999 x 264 GDPs x 415 RBS++ and 258 Compressions x 93, 169 flights affected z Results: CDM Prototype Operations Review

Graph of Cumulative vs. Actual by Month CDM Prototype Operations Review

Graph of Actual as a Percent of Cumulative CDM Prototype Operations Review