#097AF2

Time-Based Separation at Heathrow Airport

Timeline

2014
2015
2016
2017
2018
2019
2020
Jan. '14CompletedFeb. '16

Implementing Partners

Leader: Heathrow Airport
Contributor: British Airways
Contributor: NATS

Description

Time-Based Separation (TBS), deployed by Heathrow Airport, NATS and British Airways, is in operation and delivering benefits at Heathrow Airport since March 2015. Heathrow TBS was the first world’s TBS system to be implemented and paved the way for TBS to become the norm at capacity-constrained airfields.

By 2030, this implementation is expected to save almost 100.000 minutes of flight time and 23.000 tons of fuel. These elements equate to 55 million euros of monetised benefits by that date.

097AF2 1

Under the previous final approach system of fixed-distance separation, aircraft groundspeed dropped when headwinds increased, reducing the landing rate – which in turn led to extended airborne holding and increased delays. Time-Based Separation dynamically adjusts the separation between arrivals, maintaining the time separation between aircraft at a constant equivalent to the distance separation in order to safely reduce the approach separation recovering most of the capacity otherwise lost during strong headwind conditions.

TBS operates in all wind conditions, reducing separation between arrivals in strong headwinds and slightly increasing separation in still or tailwind conditions.

The next phase of the TBS evolution is to enhance the current Heathrow TBS system so it provides controllers with tool support to deliver more efficient wake separations, enabling more rapid recovery from adverse conditions, helping to reduce the overall delay for arrival and departure operations and mitigating the increasing use of heavier aircraft types

Disclaimer

A certain number of completed projects are highlighted as it was already possible to provide detailed information on specific benefits brought by these projects. In time, SESAR Deployment Manager will provide such detailed information for every completed project.

Countries involved

Additional Information

  • Project Type: Airport
  • CEF Call Year: 2014
  • Civil/Military: Civil
  • Multistakeholder: Yes
  • Main AF: AF2 - Airport Integration and Throughput
  • Sub AF: S-AF 2.3 Time Based Separation for Final Approach
  • Progress Percentage: 100%

Updates

Featured News
SESAR Deployment Manager launches new website supporting ongoing ATM modernisation in Europe
29.09.2020Read more
Featured Event
SESAR Deployment Manager Virtual Annual Meeting 2020
25.11.2020Read more
Event
CANCELLED - SESAR Deployment Manager at the 57th ATCEUC Committee Meeting 2-3 December
02.12.2020Read more
Event
SESAR Deployment Manager at Aviation-Event 1 December
01.12.2020Read more
Event
SESAR Deployment Manager at the Standards Evolution Workshop 10 November
10.11.2020Read more
Event
EUMETNET & SESAR Deployment Manager Webinar - New Pan-European Weather Information to Support Aviation
29.10.2020Read more
Event
SESAR Deployment Manager at International Airport Online Summit 2020
23.10.2020Read more
Event
Digital Sky Vodcast: Deploying in a time of COVID
13.10.2020Read more

Subscribe now

Please complete and submit the form below to be subscribed to ‘News and views from the SESAR Deployment Manager’.
You will receive a verification email before you are added to our subscriber list.