optimising movements and runway capacity movements_gly… · pre and post tbs 0-20 knots wind. time...
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Optimising Movementsand Runway Capacity
Glynn TurnerLockheed Martin
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Thought Process
• Identify Problem
• Determine what needs to be done
• Develop Solution
• Determine Success Parameters
• Implement Solution
• Assess Results
• Did it work or not
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1-What are we trying to fix
Statement of Problem:
• Need to maintain runway capacity at all times
Why?
• Too much separation reduces landing rate
• Wastes available capacity
• Too close then breaks minimum separation
• Infringes safety requirements
• Increased number of Go Rounds
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1-What do we need to happen
Need a Solution that helps users:
• Maintain mandated minimum separation
• Maintain planned arrival rates
• Reduces associated delays
• Remove Min Separation busts
• Reduce go rounds
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1-Proposed solution
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1-What outcomes do we want
We want maximized runway throughput that:
• Delivers the declared landing capacity
• Removes losses of minimum separation
• Delivers a safe, efficient service
• Reduces the number of Go Rounds
• Minimises delay
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Intelligent Approach 1.0
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What are we trying to fix -2
Statement of Problem:
• Need to maximise runway capacity at all times
Why?
Weather:
• Causes loss of landing slots
• Introduces airborne delays/holding
• Causes flight cancellations
• Impacts passenger/airline customers
Snow LVPs Winds T/Storm Capacity Other
Winds 44%
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What do we need to happen -2
Need a Solution that helps users:
In all Wind Conditions:
• Maintain planned arrival rates
• Maintain mandated minimum separation
• Reduce associated delays
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Time Based Separation, is it feasible?
150,000 Flights Measured…
…Proving Wake Dissipates
as Headwinds Increase
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Wind Effects
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Wind Effects
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Results With TBS
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Intelligent Approach 2.0
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Time Based Separation Results
Pre and Post TBS 0-20 Knots Wind
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Time Based Separation Results
Pre and Post TBS >20 Knots Wind
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TBS performance in Nov 2015
• Estimate over 25,000 minutes of delay saved versus distance based separation
15 days of strong headwinds
November 15, 2015 Storm Barney:
EUROCONTROL: Strong winds generated 65% of the total daily ATFM delay
LHR at the runway 21kts, gusting to 32kts, 80kts at 4000ft and 60kts straight down the runway at 3000ft35-40 Movements / Hour
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TBS Delivering Results
5nm becomes 3.7nm in 60 knot headwind
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Intelligent Approach 2.0
Reduced cancellations
No Increase in Go Arounds or Wake Turbulence Encounters
+2.9 movementsper hour in strong wind conditions
62%reduction in ATFM
wind delay
178NMof spacing saved per day
in strong wind conditions (>20kts)
83% of aircraft experienced smaller
Arrival-Arrival separations
78NMof spacing on approach saved per
day, on average
+1.2 movementsper hour across all wind conditions
No pilot inquires or comments