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Cleverly Creating Capacity
Nick McFarlane, Managing Director – Helios
Andrew Evans, Technical Director – AECOM
Inline Runways
BACKGROUND
The Nature of the Problem
• Underlying growth
• Congested facilities
• Environmental Pressures
‘Surface density’ is a measure of the efficiency of the use of space
Economist.com
It varies considerably
Airport Area Pax Surface density
km2 m m/km2
Denver 135.4 52.5 0.39
Dallas/FW 69.6 60.5 0.87
Chicago O'Hare 31.1 66.8 2.15
Paris CDG 28.2 62.1 2.20
Schiphol 27.9 52.6 1.89
Bejing Capital 24.7 83.7 3.39
Frankfurt 21.0 58.0 2.76
Atlanta 19.0 94.4 4.97
Jakarta 18.0 60.1 3.34
Los Angeles 15.4 66.7 4.33
Tokyo Haneda 14.4 68.9 4.78
Dubai 13.4 66.4 4.96
Singapore 13.2 53.7 4.07
Hong Kong 12.6 59.6 4.73
Heathrow 12.3 72.4 5.89Economist.com
Max per km2 of airport
area more than 15 times
higher
Developing a Solution
• What exactly is the issue?
• How could it be achieved?
• What is the role of technology?
Runway
system is at
capacity
Heathrow Airport
Conventional
solutions
Heathrow Airport
The inline
runway
proposal
Developed by Jock Lowe
• Longest serving Concorde pilot,
• Former Chief Pilot and
Director Flight Operations at British Airways
Heathrow Airport
THE INLINE RUNWAY CONCEPT
How it works
A single runway
With an in-line runway
Safety zone - kept clear of aircraft
Runways are independent –Gives the throughput of two runways
Departures Arrivals
At off-peak times, using the further runway can reduce noise
Use this runway in mixed mode at quiet or off-peak times Noise reduction here due to
displacement of approach path
Land on further runway
Aircraft do not enter the safety zone
Key:Not to scaleILS localiser antenna Near/far field monitor
Clearway/RESA+runway strip
300m 300m50m
Clearway/RESA+runway strip
Safety zone Width = 650m
Air Traffic Control procedures are designed for the inline runways
Missed approach procedures
Considerations:• ICAO/EASA/FAA rules• Obstacle surfaces• OEI operations
Simulations were used to design ground procedures
KEY FEATURES AND ADVANTAGES
Key Features & Advantages
• Uses existing infrastructure
• Uses existing flight paths
• Limits land-take and impact
• Limits runway crossings
• May have some landside advantages
• No restriction on landside development in 'single' runway configuration.
• Can develop either side if landside access is feasible.
• Remote sites retain good views
Landside Advantages
Where else might this be possible?
• Long, thin site
• Where the severance issue is limited
• Where peak hour runway capacity is limiting
What might have been?
The actual 2nd runway
If it had been inline
Where Else?• No runway
crossings (so more capacity)
• Would have removed a hazard on the existing runway
Where Else?• No runway
crossings (so more capacity)
• Would have removed a hazard on the existing runway
Vision
• A credible solution has been developed
• Builds on existing practice, but not constrained by it
• It could be a solution elsewhere
Any Questions?