For most of us, the excitement is building for our summer getaway. The temperature is rising and shorts and t-shirts are slowly emerging from their eight month hibernation, creased, but determined to remain the top choice for their wearers until the darkness of next winter relegates them once more.

A good proportion of us will take to the skies over the next few months to reach our holiday destinations and whether we choose a popular, established holiday destination or a ‘back to basics’ survival trek in one of the world’s remotest destinations, you will expect the flight to and from your paradise to be benign and without drama.

In the world of air traffic control, we have that same desire and work particularly hard to realise that expectation, even with growing air traffic levels and increased demand.

The number of air traffic movements previously peaked between 2006 and 2008 before being impacted by the world’s economic downturn. However, the average amount of delay per flight for NATS has been in steady decline since peaking in 2002, with the average delay per flight sitting at approximately two seconds NATS-wide; for NATS’ Prestwick Centre, the figure is less than 25% of that.

Our control centre at Prestwick from where the Shanwick airspace is controlled.

Our control centre at Prestwick from where the Shanwick airspace is controlled.

In some parts of our operation, the traffic is now back or getting back to those peak levels. This year in our North Atlantic Oceanic (Shanwick) operation, we have seen our busiest April ever, indicating that this summer will be amongst the busiest we have ever experienced.  In our domestic, radar-based operation, spikes in air traffic numbers are similar to those experienced back in 2007 although the total number of flights is not expected to reach the levels seen in the late “noughties” until nearer to the end of this decade.

Whatever demands are placed on the overall aviation network, we have to be ready to meet the challenges they bring while maintaining unparalleled safety levels. Safety is after all our first priority. The network is constantly evolving and demand for the routes morph with each passing season. At NATS’ Prestwick, we take advantage of milder traffic peaks over the winter period to prepare ourselves for the upcoming seasonal air traffic.

This winter we have delivered new airspace designs that have introduced greater flexibility for the smaller single piloted airspace user whilst simultaneously optimising the routes available for passenger laden air traffic. We have established Direct Route Airspace (DRA) in our upper airspace to offer more environmentally efficient route profiles for our customers and marginally shorter journey times for their passengers. We have also delivered a new flight data processing system in our Oceanic operation that improves the service offering across the North Atlantic and delivers enhancements in fuel burn and safety.

Controller at Prestwick

We have taken the time over the winter to prepare our people too. We have completed additional training days for our supervisory staff, encouraging them to discuss and practice the skills they need for managing the traffic presented to them and giving them the capability to manipulate the capacity of the network to distribute the traffic in the most effective way. We have completed training for our controllers too, giving them additional time in the simulators, practicing unusual circumstances or reinforcing techniques for controlling high levels of traffic in our ‘getting ready for summer days’.

And we still have some changes to deliver. In late June, we will redraw the boundaries between some of our airspace sectors so that the design best suits the optimal traffic flow. We will also enable the  delivery of new departure routes from Edinburgh to assist the airport in its aspiration to depart more aircraft in a shorter timeframe.

In the background, work will continue, through the seasons, on delivering the game changing technology and capability that delivers the capacity improvements needed to meet the challenges of the coming decades. Over the next five years NATS will deliver new technical capability into both of its air traffic control centres with the first deployment at NATS’ Prestwick Centre in early 2016. The transformation in our radar-based operation will take almost five years to complete and deliver improvements in safety, airspace capacity and environment.

In November of this year, Shanwick Control (our North Atlantic Oceanic operation) at Prestwick Centre will deliver new separation minima reflective of the new capabilities onboard modern aircraft. This will increase the opportunity for flights to fly their optimal routes and is another step towards the deployment of satellite based surveillance over the North Atlantic, which is scheduled for 2018 and will deliver improvements in safety and capacity and benefit the environment too.

So as you begin to prepare for your summer, whether your plan is to rest by a pool reading the novel you got for Christmas, or trek through the Andes with one set of clothes and a large bottle of mosquito repellent, please rest assured that our preparations for this summer and many more summers to come have been underway for some time. Our aim is to continue to be invisible to you as a passenger and not to become a feature of your well-earned holiday.


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I’m also getting ready for summer by shutting the windows and doors as the noise from PBN in the South East is appalling.


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