The North Atlantic Tracks Map is a dynamic routing tool that coordinates the busiest oceanic airspace between North America and Europe. It optimizes fuel efficiency, reduces flight times, and enhances safety by aligning aircraft with prevailing winds and traffic flow.
Operated by Shanwick Oceanic Control and Gander Oceanic Control, this system updates regularly to reflect jet streams, air traffic demand, and temporary restrictions. Understanding how the tracks are structured helps travelers and aviation professionals anticipate delays and plan efficient routes.
| Track Designator | Route Waypoints | Typical Flight Level | Traffic Density |
|---|---|---|---|
| NAT 1 | ATLAT, DARVO, BIKNO | FL350–FL390 | High |
| NAT 3 | ATLAT, HURRI, REBIS | FL330–FL370 | Medium |
| NAT 5 | ATLAT, BIKNO, LAMBI | FL310–FL350 | Medium |
| NAT 7 | tracks toward GanderATLAT, BIKNO, REBIS | FL290–FL330 | Low |
| NAT 9 | ATLAT, DARVO, DOLED | FL350–FL400 | High |
Route Planning and Flight Efficiency
When planning oceanic crossings, airlines study the North Atlantic Tracks Map to align flights with jet streams and traffic demand. Pilots file routes that match available tracks to maximize tailwinds and minimize fuel burn.
Dispatchers coordinate step climbs along the tracks to exploit favorable winds at higher altitudes. This systematic planning reduces block time and ensures smooth transitions between oceanic control regions.
Traffic Management and Demand Patterns
Peak Times and Capacity Allocation
Traffic over the North Atlantic follows predictable daily and seasonal patterns, reflected in the tracks map. Eastbound flows peak in the evening European time, while westbound flows rise after morning departures from North America.
Air navigation service providers balance slot availability across tracks to prevent congestion. Strategic TFM measures may reroute flights or adjust flight levels to maintain safe spacing and smooth traffic progression.
Operational Procedures and Routing Constraints
Use of Directed Routes and Uniform Track System
The Uniform Track System (UTS) organizes the North Atlantic Tracks Map into structured lanes separated by defined boundaries. Aircraft must follow designated tracks unless receiving amended clearances from controllers.
Directed routes issued by oceanic control specify entry points, track codes, and level restrictions. These instructions ensure that traffic flows smoothly while respecting airspace limitations and minimizing environmental impact.
Navigation and Planning Resources
Aviators and flight planners rely on specialized charts and digital tools to interpret the North Atlantic Tracks Map accurately. These resources include oceanic forecast winds, track utilization statistics, and real-time updates on constraints or closures.
- Review updated track charts and wind forecasts before each oceanic crossing
- Collaborate with dispatchers to select efficient track options based on forecast conditions
- Monitor en route weather and turbulence reports to anticipate possible deviations
- Coordinate altitude and speed changes with oceanic controllers to maintain optimal flow
FAQ
Reader questions
How do I identify which North Atlantic Track my flight will use on the map?
Flight plans list the assigned track designator, such as NAT 1 or NAT 9, along with expected entry and exit waypoints. Dispatchers select the track based on forecast winds, traffic density, and airspace restrictions, and pilots confirm the route before departure.
Can a flight change tracks mid-ocean if conditions improve or worsen?
Yes, pilots can request track changes from oceanic controllers to take advantage of stronger tailwinds or avoid turbulence. Such rerouting requires coordination with both oceanic control centers and adjacent airspace authorities to maintain safe separation.
What happens to flight times if the chosen track has stronger headwinds than expected?
Aheadwind shift may prompt a level change or reroute to a more favorable track, potentially adding time to the flight. Conversely, unexpectedly strong tailwinds can shorten block time and reduce fuel consumption, subject to air traffic management approval.
How are altitude assignments determined for each track on the map?
Altitude assignments depend on traffic flow, aircraft performance, and wake turbulence considerations. Controllers issue flight level assignments that optimize spacing, often coordinating step climbs along the North Atlantic Tracks Map to exploit favorable winds at higher altitudes.