Mediterranean Free Flight ASAS Separation and Spacing - PowerPoint PPT Presentation

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Mediterranean Free Flight ASAS Separation and Spacing

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ASAS-TN, Malm 7-10-03. This presentation explains 2 aspects of MFF: ... 'AFR123 squawk ident' - 'AFR123 re-identified, back under positive radar control' ... – PowerPoint PPT presentation

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Title: Mediterranean Free Flight ASAS Separation and Spacing


1
Mediterranean Free FlightASAS Separation and
Spacing
Presented by Andy Barff Project Leader MFF
Real-time Simulations ASAS-TN, Malmö 7-10-03
2
  • This presentation explains 2 aspects of MFF
  • ASAS Separation Applications and Simulation
    Design
  • ASAS Spacing An Integrated Approach

3
ASAS Separation
4
MFF ASAS Separation Concept
  • Definition in line with PO-ASAS
  • Delegation of separation responsibility to the
    flight crew for a particular manoeuvre in
    relation to a target aircraft limited in space
    and time
  • Applications
  • Crossing Procedures
  • Lateral Crossing (pass behind)
  • Vertical Crossing (pass above or below)
  • Overtaking Procedures
  • Lateral overtaking (pass to the right or left)
  • In-trail Procedures
  • Remain in trail
  • Merge in trail
  • In-trail climb or descent
  • In-trail climb or descent to same level

5
MFF ASAS Separation Simulation
  • Simulation of Greek and Maltese airspace
  • October 20th 31st 2003
  • 4 days training
  • 1 day of reference exercises
  • 5 days of ASAS evaluation
  • 2 large sectors over central Mediterranean
    (mainly high seas)
  • Simulation of radar and ADS-B surveillance
  • An area of poor or no surveillance
  • Inter-centre transfer procedures
  • Experimental Design
  • Qualitative assessment of ASAS Separation
    applications
  • Traffic samples tuned to offer several ASAS
    opportunities every 6-10mins
  • Current fixed route structure and existing sector
    dimensions
  • Technical Features
  • Position symbol reflects surveillance quality
  • ADS-B down-linked parameters displayed on demand
    in track label

6
MFF RTS3 Greece-Malta Scenario
? AFR123 350 350 350 g45 hdg m.84 rocd
? BAW456 350 350 350 g45 h270 m.82 r0
7
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8
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9
ASAS Spacing An Integrated Approach
10
ASAS Spacing as a System Component
  • ASAS Spacing cannot be considered in isolation
  • Unlike RVSM for example.
  • It seems that the benefits of ASAS Spacing will
    be greatest when it is a component of an
    integrated concept of operations
  • Current practices will have to evolve to include
    ASAS Spacing in the more efficient management of
    arrival flows probably including RNAV arrival
    procedures
  • Current practices (generally) include
  • Extensive marshalling and vectoring at low
    altitudes
  • Some use of holding (ready supply of a/c to
    maximise runway capacity)
  • This is not really compatible with the extensive
    use of ASAS Spacing because spacing set up in the
    ETMA will be lost if there is holding or
    extensive vectoring
  • New tasks for en-route sectors establishing the
    sequence in the vicinity of top of descent

11
Towards a more efficient arrival flow
12
ASAS Spacing as a System Component
  • MFF is initiating a study of Rome arrivals using
    ASAS Spacing as a tool in a more efficient
    arrival concept..
  • Subtle sector revisions to allow the controllers
    to concentrate on the management of arrivals.
    Overflights and outbounds handled mainly by other
    sectors
  • Key objectives
  • To ensure that the en-route/ETMA sectors can
    effectively establish the arrival sequence before
    or shortly after Top of Descent
  • To study the feasibility of merging of ASAS
    spaced flows at medium level
  • To study the impact on the TMA sectors in terms
    of holding (reduction), environmental/efficient
    trajectories (mileage/levels) and controller
    workload/concept feasibility

13
MFF RTS3 Rome Scenario
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