Runway Approach Vector Segmentation for Aircraft Separation

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Solution Overview

Problem

Existing RNP procedures for aircraft approach vectors, particularly in challenging terrains, face difficulties in ensuring accurate navigation and separation of aircraft when multiple planes approach simultaneously, leading to increased communication demands for air traffic controllers.

Innovation Solution

A navigational control system and air traffic control system that select and transmit predetermined runway approach vectors with separated first approach legs, allowing aircraft to execute specific flight paths, reducing the need for continuous communication and ensuring visual verification of correct flight paths by air traffic controllers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple aircraft are routed along the same downwind leg in a trombone approach pattern, then aircraft separation is facilitated, but it becomes difficult for air traffic controllers to determine whether each aircraft is following its designated base leg route

Engineering Contradiction:
Improveaircraft separationVSAvoidverification of flight path
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The approach procedure is segmented into distinct standardized legs (downwind, base, final) with specific geometric parameters. Each leg has defined entry and exit criteria, allowing controllers to verify aircraft position at each segment rather than continuously monitoring the entire path. This segmentation makes it easier to detect and measure whether aircraft are following the correct route.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies parameter changes by defining specific geometric parameters for each approach leg (angles, distances, altitude changes). These standardized parameters create predictable flight paths that can be easily monitored and verified against controller instructions, resolving the difficulty of detecting and measuring aircraft position.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If RNP procedures are implemented for difficult to navigate airports, then navigation precision is improved, but the complexity of the procedure increases

Engineering Contradiction:
Improvenavigation precisionVSAvoidprocedure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The complex RNP procedure is divided into standardized, repeatable legs with clear entry and exit criteria. This segmentation reduces procedure complexity by providing a structured framework that pilots and controllers can follow systematically, even in challenging terrain.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The approach procedure includes preliminary actions such as establishing specific headings, altitudes, and positions at defined points before entering the final approach. These preliminary steps are built into the standardized leg structure, ensuring navigation precision is achieved through predetermined maneuvers rather than complex real-time decisions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9501937B2Systems and method of controlling airport traffic
Publication Date: 2016.11.22 THE BOEING CO
  • US9501937B2 patent drawing
  • US9501937B2 patent drawing
  • US9501937B2 patent drawing

AI summary

A method of controlling airport traffic is provided. The method includes routing a plurality of aircraft towards a runway and selecting a runway approach vector for each of the plurality of aircraft. First approach legs of each runway approach vector are separated from each other by a distance.