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

Contents Overview of TCN and changes proposed Impact on Helions Bumpstead 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 2 nd 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 on Helions Bumpstead New westerly hold between Newmarket and Saffron Walden Changed easterly and westerly arrivals routes Overflying less densely populated areas

Current Stansted Westerly Arrivals 

 Proposed Stansted Westerly Arrivals

STANSTED MOUNTFITCHET BISHOP’S STORTFORD SAFFRON WALDEN

Current Stansted Easterly Arrivals

Proposed Stansted 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

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

QUESTIONS AND ANSWER S