Skip to content

04.5 Bottlenecks & Complexity Management

Training Objective

To identify and manage traffic bottlenecks and complexity within a sector.


Key Knowledge

  • Bottleneck locations
  • Conflict hotspots
  • Complexity drivers

Operational Application

Controllers shall:

  • Identify high-risk areas within the sector
  • Apply proactive measures to reduce complexity
  • Manage traffic before bottlenecks form

1. Overview

Bottlenecks occur where traffic converges, increasing the risk of conflict and workload.


2. Core Content

2.1 Bottlenecks

  • Entry/exit points
  • Crossing routes
  • Level-off points

2.2 Complexity Drivers

  • High traffic density
  • Mixed climb/descent profiles
  • Weather deviations

2.3 Conflict Hotspots

  • Predictable areas of risk
  • Require increased attention

3. Procedures

3.1 Complexity Management

  • Early intervention shall be applied
  • Traffic shall be organised before reaching bottlenecks

4. Standards

  • Controllers shall maintain manageable workload at all times

5. Notes

  • Late action leads to sector overload