Transcript Diapositiva 1

Fulvio Lecci
Link It Program Manager
Technical Area - ENAV
Link2000+ Workshop – Brussels 10, 11 October 2007
The approach to data link

ENAV commitment


In 2001 ENAV decided to commit to Link2000+
Initial studies to define basilar requirements

Designed Airspace
 Network ownership

Data Link Approach
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Business Case to demonstrate data link feasibility
Safety Assessment process
FTS, Data Link HMI Definition & Prototyping
Operational Implementation
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Designed Airspace
LIMC
•
•
LIME
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LIMF
•
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
UIR Roma (FL290 – 460)
LIMJ
MILANO UIR
LIRZ
UIR Milano (FL296 – 460)
•
LIRF
•

Managed by Roma ACC
•
LIRA
•
LIRN
ROMA UIR
•
LICJ
LICG
•
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Safety Assessment process

Safety Assessment steps
 Operational
environment and related services
 Functional Hazard Assessment to identify risk
level of the new functionalities

CPDLC HMI Functional Requirements
 Functional
Requirements Document for the
use
of
L2k+
baseline
services
(DLIC,ACM,ACL,AMC)
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FTS/RTS: step by step approach
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Data Link HMI Definition & Prototyping
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Efficiency Analysis
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Prototype of a new Human Machine Interface
Related working methods for the use of the datalink services
Based on the one currently in operation in Rome ACC
Analyse the impact of data link communications on ATCOs
Workload.
Definition and validation of new controller’s tasks by Real Time
simulations.
Safety Objectives Validation
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
Specific Safety Scenarios were developed and injected in the
RTS
Validation of FHA Safety Objectives compliance with the
Hazards identified in the FHA and in the ED120
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FTS/RTS: HMI prototyping

Innovative Control Working Position solutions supporting
Data Link services for testing CPDLC operations
ACL message: authorized to level … (UM19, UM20, UM21)
AB button on ALV or Modo
C field label:
ALV menu to send
clearances.
AB button on clearance
level of right column
(DL mode):
Pilot has receveid
clearance.
DL message will be
sent.
Pilot will answer
WILCO.
In the label a yellow
frame will close ALV
field.
When WILCO message
will be received from
system, yellow frame
around ALV field get
off.
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FTS/RTS: main activities
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2 Real Time Simulation (Human-in-the-loop)
and 1 Fast Time Simulation (SICTA and ENAV
Experimental Centre)
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1st Real Time Simulation exercise aiming to define
and evaluate new controller’s tasks (qualitative and
quantitative approach), to feed FTS
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A Fast Time Simulation exercise to evaluate the
efficiency and the potential increase of sectors
capacity, based on preliminary indications from 1st
RTS

2nd Real Time Simulation exercise to evaluate
Safety and Human Factors aspects
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FTS/RTS: main results of FTS
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Constant decrease of workload in each of future (CPDLC) scenario
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Progressive and regular decrease of the voice communications
amount
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Decrease of time duration of voice communication
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Increase of Sectors Capacity up to 12.8% (with 100% of traffic D/L
equipped). The different results in term of capacity depend on the
typology of Sectors (e.g. Feeder of Roma TMA) and the
characteristic of traffic (e.g. overfly)
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Slight reduction of improvement margins in case of non-nominal
scenario
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FTS/RTS: evidence of results of FTS
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FTS/RTS: human in the loop simulations
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Airspace Environment
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Traffic Sample
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Baseline (R/T modality)
Baseline + CPDLC modality
Baseline + CPDLC modality with task sharing between EXE & PLN
Organizations
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3 levels of traffic (75%, 100% & 130% of sector capacity as reported to
CFMU)
2 percentage of aircraft D/L equipped (50% & 75%)
ATC Working Methods
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2 sectors (EWU & OVS)
2 Feeder (Marsiglia/Tunusi as other ATSU and Roma ACC as sector of
same ATSU)
23 exercises with 8 ATCO in rotation
Non-Nominal Events :
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Military Area and Bed Weather Conditions
Faults Injections (e.g. Misdirection of message, corruption of message)
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FTS/RTS: Roma ACC sectors
Feeder West
Marsiglia/Tunisi
Feeder East
Roma ACC
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FTS/RTS: evaluation activities
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Over
the Shoulders
Observation
 Eye
Tracking
 Safety & Human Factors Experts
 The map of hot-spot shows the areas which are
Questionnaires
mostly fixed by ATCO during a run
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Human Factors post run (based on NASA TLX and SASHA)
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Human Factors Survey
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Safety post run
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Personal Interview
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Instantaneous Self Assessment (ISA)
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Debriefing post run
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Debriefing post simulation sessions
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Eye Tracking
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FTS/RTS: output of SO validation
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FHA Safety Objective Validation
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Identification and evaluation of the effects of Hazards on the basis
of ATCO behaviours and feedback
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Evalutation of the effective risk related to more critical Hazards
(e.g. Misdirection of message, Corruption of Flight Level
message)
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Supported by proof the Severity of Operational Consequences and
the Safety Objectives derived from the FHA
Identification of some mitigation means to apply in design and
implementation of new HMI
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FTS/RTS: evidence of results of ISA
Measurement of workload through the
“Instantaneous Self Assessment”

Compared the Baseline scenario (R/T
modality) with the D/L scenario (R/T +
CPDLC modality)
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Cumulative ISA ORG 02 - R/T mode
Cumulative ISA (%)
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Evident reduction of workload in the
organizations with CPDLC
No Answ er
Very High
+High
NoAnswer
180
Very High
+Normal
High
Normal
+Low
Low
+Very Low
Very Low
Cumulative ISA ORG 17 - D/L mode
160
120
100
ORG 02 R/T
ORG 17 D/L
80
60
Cumulative ISA (%)
140
40
20
0
No Answ er
Very Low
Low
Normal
High
Very High
No Answer
Very High
No Answer
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+High
Very High
+Normal
High
Normal
+Low
Low
+Very Low
Very Low
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FTS/RTS: main results of RTS
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Human Factors
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Trust of ATCO in the CPDLC
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Significant reduction of workload and voice communications
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Increase of Situational Awareness
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Positive ATCO feedback on HMI usability
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Operational Implementation
Contract objectives

Implementation of DLIC, ACM, ACL, AMC
 Initial
CPDLC services will be implement in Roma
ACC using VDL2 network
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Implementation of data link network
A
new network supporting VDL2, AOA, ACARS
protocol will be developed and implemented
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Implementation of D-ATIS and DCL
 D-ATIS
and DCL will be implement in Fiumicino and
Malpensa airport using ACARS protocol
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Operational Implementation
Implementation Phases
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Definition, Testing, Implementation of Multimode Ground Station
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Implementation of data link network
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Data link new functionality will be implement in operational HMI used in Roma ACC.
Pre-operational phase in PSA
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Network of initial 10 MGS to cover Roma UIR and most important airport, starting from
Fiumicino and Malpensa.
MGS will be connected together and integrated in ENAV network using E-Net transport
services (ENAV program to implement ATM network connections)
Upgrade of the HMI
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New VHF, VDL, ACARS Ground Station to manage ATS and AOC messages.
Partnership Agreement with ARINC.
Pre-operational phase will be performed in PSA of Roma ACC (Test, Simulation and training
room)
Assess operational validation of CPDLC services.
Training sessions for controllers.
Operational phase

CPDLC services will be implement in Upper sectors managed by Roma ACC.
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Operational Implementation
Timing of data link implementation
Project Definition
Development and testing of
MGS
System and Network
Implementation
Pre-Operational Phase in
Rome PSA
Operational
Rome UIR
Pre-Operational phase in
Fiumicino & Malpensa
Other airport
and ACCs
Operational phase in
Fiumicino & Malpensa
07
08
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Operational Implementation
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