1. NATS TCN AIRSPACE PROPOSALS PRESENTATION TO HELIONS BUMPSTEAD PARISH COUNCIL 24 APRIL 2008

2. Contents Overview of TCN and changes proposed Impact on Helions Bumpstead Noise disturbance How to respond to consultation Questions and answers

3. 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

4. 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 2 nd runway First phase of plans out to 2030 to align with ATWP

5. TCN Region

6. One Day’s Flight Paths through TCN in 2006

7. Tranquility Map 2006

8. Tranquility Map with Departures and Arrivals

9. Impact on Helions Bumpstead New westerly hold between Newmarket and Saffron Walden Changed easterly and westerly arrivals routes Overflying less densely populated areas

10. Current Stansted Westerly Arrivals 

11.  Proposed Stansted Westerly Arrivals

12. STANSTED MOUNTFITCHET BISHOP’S STORTFORD SAFFRON WALDEN

13. Current Stansted Easterly Arrivals

14. Proposed Stansted Easterly Arrivals

15. 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

16. 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

17. Equivalent Lmax Levels

18. 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

19. Airport expansion = more noise + more CO 2 emissions Root Cause

20. QUESTIONS AND ANSWER S