Optimising Movementsand Runway Capacity

Glynn TurnerLockheed Martin

Thought Process

• Identify Problem

• Determine what needs to be done

• Develop Solution

• Determine Success Parameters

• Implement Solution

• Assess Results

• Did it work or not

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

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

1-Proposed solution

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

Intelligent Approach 1.0

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%

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

Time Based Separation, is it feasible?

150,000 Flights Measured…

…Proving Wake Dissipates

as Headwinds Increase

Wind Effects

Wind Effects

Results With TBS

Intelligent Approach 2.0

Time Based Separation Results

Pre and Post TBS 0-20 Knots Wind

Time Based Separation Results

Pre and Post TBS >20 Knots Wind

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

TBS Delivering Results

5nm becomes 3.7nm in 60 knot headwind

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

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