NATS TCN AIRSPACE PROPOSALS

PRESENTATION TO

SAFFRON WALDEN TOWN COUNCIL AND LOCAL PARISHES

17 APRIL 2008

Contents

• Overview of TCN and changes proposed

• Impact on Saffron Walden area

• Noise disturbance

• How to respond to consultation

• Questions and answers

Overview of TCN and Changes Proposed (1)

• TCN region over 12 million people across five counties

• Changes out to 2014

• Effects arrival routes, holds and departure routes

Overview of TCN and Changes Proposed (2)

• Heathrow, Stansted, Luton, London City, Northolt + smaller airports and military airfields

• Not all routes are being changed

• Excludes Stansted 2nd runway

• First phase of plans out to 2030 to align with ATWP

TCN Region

One Day’s Flight Paths through TCN in 2006

Tranquility Map 2006

Tranquility Map with Departures and Arrivals

Impact onSaffron Walden Area

• New easterly departure route• New westerly hold between Newmarket

and Saffron Walden• Changed easterly and westerly arrivals

routes• Overflying less densely populated

areas

Proposed & Existing NPRs for Stansted Departures to North & SW

Current Stansted Easterly Departures to North

Proposed Stansted Easterly Departures to North

Current Stansted Easterly Departures to SW

Proposed Stansted Easterly Departures to SW

Current Stansted Westerly Arrivals

Proposed Stansted Westerly Arrivals

Proposed Stansted Westerly Arrivals

Current Stansted Easterly Arrivals

Proposed Stansted Easterly Arrivals

Current Luton Easterly Arrivals

Noise Disturbance (1)

• Noise impact defined by number of people affected rather than amount of noise they are exposed to

• Routes moved to less densely populated areas

• Current tranquil areas will suffer from more noise

Noise Disturbance (2)

• Measured by Lmax levels• But aircraft numbers and duration

important factors• Aircraft noise has low frequency and

tonal characteristics which increase annoyance

• Low background noise environment

Equivalent Lmax Levels

How to Respond to Consultation

• Online or by letter• Closing date 22 May 2008• We recommend letter + copy to your MP• Copy the CAA

Information on the proposed changes and guidance notes for response are

published by SSE