Who is this article for?

Noise analysts who want to understand how gates are used to monitor flight paths.

Access to the ANOMS Noise Analyst Workbench is required.

A gate is a vertical surface, or window in space, that aircraft pass through along their flight paths.

Understanding the purpose of gates

Gates are one of the core track-keeping tools in ANOMS and underpin penetration analysis, corridors, and holding zone detection.

Using gates for analysis

Once gates are created, they can be used to:

• Identify tracks that pass through restricted or identified airspace
• Produce Penetration Gate plots
• Display gates on the map in 2D and 3D modes
• Produce Gate Analysis reports

A chain of gates displayed on the Map Browser in 3D

Determining when a flight qualifies for Gate Analysis

To qualify for Gate Analysis, the flight track must pass through the gate, and the gate must be active.

A flight track penetrates a gate when it crosses the vertical surface between the gate's two endpoints, floor, and ceiling.

Note: Gates can be placed end to end to cover a wider area of airspace.