How did jet aircraft change airport equipment and air traffic control systems?

The introduction of jet aircraft necessitated significant advancements in airport infrastructure and air traffic control systems to accommodate their higher performance, size, and operational requirements.

Airport Infrastructure

The transition to jet engines required major upgrades to support facilities:
* Runway Pavements: Early jet aircraft and larger airframes demanded stronger, more durable runways. Pavements had to be designed to bear heavier loads and resist damage from jet fuel, leading to the widespread use of concrete on aprons and runway ends.1
* Ground Support: Airports required vastly improved ground handling equipment for refueling, loading, and unloading to ensure the intensive use necessary to amortize the higher costs of jet airliners.2
* Noise Management: The first generation of turbojet aircraft created significant noise pollution, forcing airports to implement noise curfews, modify flight paths, and invest in infrastructure to mitigate the impact on surrounding urban populations.3

Air Traffic Control (ATC)

As jet traffic grew, existing ATC systems required modernization to handle increased volume and speed:
* Sophisticated Instrumentation: Both aircraft and ground-based instrumentation became far more complex to manage the transitions between low-altitude maneuvers and high-altitude cruising.2
* System Overhauls: Navigation and en-route surveillance systems were repeatedly overhauled to prevent the saturation of ATC capabilities as the number of flights increased.2
* Operational Efficiency: To manage the high density of traffic, systems evolved to include more precise navigation aids and, eventually, flow control policies to reduce controller workload and maintain safety.4