Where does the JEN.JEN9 arrival begin?

The JEN.JEN9 arrival procedure begins at the Glen Rose VORTAC. This waypoint serves as the initial segment for the arrival route, allowing aircraft to transition from en-route flight into the terminal area while maintaining safe altitudes and routing. Utilizing VORTACs, or VHF Omni-directional Range with Time of Arrival, is common practice, as they provide precise navigational references in the vicinity of busy airports.

In the context of standard arrival procedures, starting at a VORTAC like Glen Rose helps ensure that aircraft are on the correct path to efficiently manage traffic flow, especially when approaching major airports. The waypoints and routing associated with arrivals are designed to guide aircraft along prescribed routes while optimizing safety and efficiency until they reach the final approach phase.