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ATS DATALINKATS DATALINKCENTRAL REPORTING CENTRAL REPORTING AGENCY ACTIVITIESAGENCY ACTIVITIES

ATS DATALINKATS DATALINKCENTRAL REPORTING CENTRAL REPORTING AGENCY ACTIVITIESAGENCY ACTIVITIES

YOSHIRO NAKATSUJIJCAB CENTRAL REPORTING AGENCY

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Our presentation includes;Our presentation includes;

1. ADS/CPDLC ATC Systems

2. FIT CRA and RASMAG

3. Example of Problem Reports 4. Operational Performance

ATS Datalink Central Reporting Agency Activities

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1.1. ADS/CPDLCADS/CPDLC

ATC SYSTEMATC SYSTEM1.1. ADS/CPDLCADS/CPDLC

ATC SYSTEMATC SYSTEM

ATS Datalink Central Reporting Agency

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Oceanic Sector with Electric Strips and CPDLC Display at Tokyo ACC

1. ATS Datalink and its usage

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Oceanic Traffic Situation Display used at Tokyo ACC

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ADS Position Displayed on ATC ScreenTokyo ACC’s Oceanic System

1. About ATS Datalink

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2. FIT CRA2. FIT CRA and and RASMAG RASMAG

2. FIT CRA2. FIT CRA and and RASMAG RASMAG

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What’s FIT ?

FIT Structure

IPACG/ISPACGIPACG/ISPACG

FIT (FANS Interoperability Team)FIT (FANS Interoperability Team)

Report

Report

2. FANS Interoperability Team

CRA (Central Reporting Agency)CRA (Central Reporting Agency)

U.S. and Japan provide CRAs for FIT.

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RASMAG

Regional Airspace Safety Monitoring Advisory Group / APANPIRG

RASMAG is a group responsible for airspace safety monitoring in Asia/Pacific airspace regarding;

• ATS DATALINK Monitoring • RVSM Monitoring • RNP Monitoring

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Who are stakeholders ? FIT is the datalink specialist’s work group of ISPACG & IPACG

Representatives of all these parties below participate in this activity:

• Air Traffic Service Providers• Aircraft Operators• Aircraft and Avionics Manufacturers• Datalink Service Providers(DSP)• ATC Systems Manufacturers• State’s Regulatory Authorities• International Organizations

2. FANS Interoperability Team

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What are FIT responsibilities ? The FIT(FANS Interoperability Team) oversees the monitoring process to ensure the

ATS datalink system continues to meet its performance, safety, and interoperability requirements and that operations and procedures are working as planned.

FIT is responsible to:• review Problem Reports and determines

resolution• develop interim operational procedures• monitor progress of problem resolution• prepare summary of problems • assess system performance• authorize and coordinate for system testing

2. FANS Interoperability Team

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What’s CRA ? CRA: Central Reporting Agency is an organization tasked with the regular

dissemination of de-identified information on:

• statistical performance data based on Periodic Status Reports prepared by ATS providers, and

• Problem Reports sent from stakeholders and their processing status & rectification progress

3. CRA Activities

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ATS Datalink Central Reporting AgencyATS Datalink Central Reporting Agency

3. Example of3. Example of

Problem ReportsProblem Reports3. Example of3. Example of

Problem ReportsProblem Reports

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An Example of Problem Reports

Improper CPDLC Position Report• FMS Database includes non-ATC waypoints

and provides pilots with these information. • A Pilot downlinked CPDLC Position Report f

or Non-ATC Waypoint.• When repeated, it increases pilots and contr

ollers workload and communication load.• Operators were requested to educate pilots

to send ATC Compulsory Reporting Point only.

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An Example of ADS Problem ReportsEmergency Reports from Non-Emergency Aircraft

• When a pilot operates EMERGENCY SELECT ‘ON’ or EMG Button , ADS EMG Mode is engaged and the avionics downlinks emergency messages.

• ATC System receives it and display the aircraft identification with EMG Tag on ATC screen.

• However, actually the aircraft was not in emergency.

• Supposed to be pilot’s mishandling of ADS.• Manufacturer took a remedial action.

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Weather

Example: WX Deviation with Heading Mode

Planned Route

NEXT WAY POINT

21NM

Actual Flight Path

Flight Direction and Position Displayed on ATC Screen

Abnormal aircraft positions and flight directions may be displayed for an aircraft on ATC screen, when the pilot selects Heading Mode for weather deviation, instead of FMS Offset.

Heading Select

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VHF Coverage Fringe Area

VHF Coverage VHF Coverage

Satellite Coverage Space

DSP sends MAF (Message Assurance Failure) to ATC CenterATC uplinked a

message to aircraft

Aircraft downlinked acknowledge, butfailed, because of out of VHF coverage.

VHF ? SATCOM ??...

No acknowledge from aircraft

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Central Reporting Agency ActivitiesCentral Reporting Agency Activities

4. Operational4. Operational PerformancePerformance

4. Operational4. Operational PerformancePerformance

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Nature of Traffic in Tokyo FIR • Average Number of Traffic in Tokyo Oceanic

Airspace (September 2003)

442 aircraft per day• Average Number of Successful CPDLC

Connections (September 2003)

127 aircraft per day• CPDLC Connection shares about 29 %,

and about 50 % for North Pacific.

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Trend of Number of Successful CPDLC Connections

130

120

110

100

90

80

70

60

2002 Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct 2003

Num

ber

per

Day

Monthly Average / March 2002 – October 2003

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System Performance Analysis

• CRA analyzes System Performance based on monthly statistical reports sent from ATS providers.

• It includes statistical data of: - Delay time for Round Trips

- Delay time for Downlinks

- Number of lost messages

- Unavailability of systems

- Connection success and failure

3. Activities of CRA

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CPDLC System Performance

0:00:00

0:00:30

0:01:00

0:01:30

0:02:00

0:02:30

0:03:00

0:03:30

0:04:00

0:04:30

0:05:00

0:05:30

0:06:00

0:06:30

0:07:00

Sep.2002

Oct.2002

Nov.2002

Dec.2002

Jan.2003

Feb.2003

Mar.2003

Apr.2003

May.2003

Jun.2003

Jul.2003

Aug.2003

0

5000

10000

15000

20000

25000

30000

35000

No. of MSG

95Percentile

99Percentile

Trip Time (h:mm:ss)

CPDLC Downlink 95 & 99 Percentile, 9/2002 – 8/2003

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CPDLC System Performance CPDLC Uplink 95 & 99 Percentile, 9/2002 – 8/2003

0:00:00

0:00:30

0:01:00

0:01:30

0:02:00

0:02:30

0:03:00

0:03:30

0:04:00

0:04:30

0:05:00

0:05:30

0:06:00

0:06:30

0:07:00

Sep.2002

Oct.2002

Nov.2002

Dec.2002

Jan.2003

Feb.2003

Mar.2003

Apr.2003

May.2003

Jun.2003

Jul.2003

Aug.2003

0

2000

4000

6000

8000

10000

12000

14000

16000

18000

No. of MSG

95Percentile

99Percentile

Trip Time (h:mm:ss)

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ADS System Performance ADS Uplink Message Success Rate 9/2002 – 8/2003

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

Sep.2002

Oct.2002

Nov.2002

Dec.2002

J an.2003

Feb.2003

Mar.2003

Apr.2003

May.2003

J un.2003

J ul.2003

Aug.2003

97.2%

97.4%

97.6%

97.8%

98.0%

98.2%

98.4%

98.6%

98.8%

99.0%

Total number ofADS Uplinkmessage

Total number ofsuccessful ADSuplink message (%)

Number of Uplink Messages / Month

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Website

• Web-site is available for any participants who sign the confidentiality agreement.

• CRA provides ‘lessons learned’ experienced by other pilots and controllers on CPDLC/ADS operation.

• It includes useful information for pilots & controllers and system engineers.

3. Activities of CRA

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Address of JCAB’s CRAPlease send your Problem Report to:

crasa@cra-japan.org

For Website:

http://www.crasa.cra-japan.org But to be accessible to Problem Reports or Performance dat

a, you are requested to sign Confidentiality Agreement

3. Activities of CRA

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ATS Datalink Monitoring Structure and PRs & PSRs Process

Civil Aviation Authority / ATS ProviderSystem Monitoring & Establishment of StandardsDatalink Based ATC & A/C Operation ProceduresDevelopment of Datalink Operational Procedures

Report to FIT

Civil Aviation Authority / ATS ProviderSystem Monitoring & Establishment of StandardsDatalink Based ATC & A/C Operation ProceduresDevelopment of Datalink Operational Procedures

Report to FIT

Central Reporting Agency PR Processing/PSR Production and Analysis　　　　　　　　　　 Database Management

　　　　　　　　　　　 Performance Monitoring 　　　　　　　　　　　　　　　　　 　　　　↑ 　　　　　　　　　　　　　↑　　　　　　　　 Data Analysis Register in Database 　　　　　　　　　　　　　　 　　　 ↑　　　　　　　　　　　　　↑　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 De-identification 　　　　　　　　　　　　　　　　　　　　　　　　　　　　 ↑　　　　　　　　　　 Analysis of Findings ⇔ Follow up

Creation of ↑New PR 　　　 Resolution 　　　　　　　　　　　　　　　　　　　　 ↑　　　　　　　　　　　　　　　　 Investigation ↑ ATS Unit/Aircraft Operator/ ＤＳＰ /ATC Systems/Avionics ↑

Central Reporting Agency PR Processing/PSR Production and Analysis　　　　　　　　　　 Database Management

　　　　　　　　　　　 Performance Monitoring 　　　　　　　　　　　　　　　　　 　　　　↑ 　　　　　　　　　　　　　↑　　　　　　　　 Data Analysis Register in Database 　　　　　　　　　　　　　　 　　　 ↑　　　　　　　　　　　　　↑　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 De-identification 　　　　　　　　　　　　　　　　　　　　　　　　　　　　 ↑　　　　　　　　　　 Analysis of Findings ⇔ Follow up

Creation of ↑New PR 　　　 Resolution 　　　　　　　　　　　　　　　　　　　　 ↑　　　　　　　　　　　　　　　　 Investigation ↑ ATS Unit/Aircraft Operator/ ＤＳＰ /ATC Systems/Avionics ↑

ATC UnitATC Unit

ControllerController

AircraftOperator

AircraftOperator

PilotPilot

Datalink ServiceProvider(DSP)Datalink ServiceProvider(DSP)

Other CRAsOther CRAs

Exchangeof Data

Cooperate

CAACAA

ICAO: RASMAG → APANPIRGICAO: RASMAG → APANPIRG

PR ReportＰＳＲ Report

Receipt of PR

Data CollectionAircraft

ManufacturerAircraft

Manufacturer

Stakeholders

ATS ProviderATS Provider

CAAATSCAAATS

Web-site

ATC SystemManufacturer

ATC SystemManufacturer

De-identification

Report