Meaning of coloured lines on the map

What do these coloured lines on the world map represent/mean?

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NATS - North Atlantic Track System, If I recall correclty! Its a display of sets of current tracks/routes that is available for routing. You can choose one of them and cross the atlantic ocean! Just choose the one that fits best for your needs

They are displayed in either direction also, and they get updated by our service provider regularly so dont stress with them being to old!

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Hey @DinuxFlyer,

The oceanic tracks represent the currently active oceanic tracks in real life. Depending on where the oceanic tracking letter is, this represents the direction of the oceanic track. For example, Oceanic track A goes from east to west and oceanic track Zulu goes from west to east.

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Thanks! I thought that the lines represented jet streams or something :)

These are Oceanic Routes sir

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