Procedure Track

This HEAVY line/arrow indicates the Approach Path or Procedure Track inbound to the airfield. It contains a Heading value in the middle of the arrow. In this example, 279° Course is given as the Procedure Track for the approach.

Notice it is the Heavy line pointing to the airfield. The track is the 099° Radial of GVO and you must fly a course of 279° to maintain this approach path. This line can contain turns, arcs, and descents as you can see in the Profile View.