The phrase describes a domain, typically the airspace above a geographic location, that previously experienced a high volume of activity or population. This activity has subsequently decreased, leaving the area less congested than it was in the past. As an example, imagine an area renowned for its frequent aviation events that now sees fewer flybys due to regulatory changes or economic factors.
The reduction in congestion can lead to multiple advantages. Fewer participants or entities involved could result in improved safety conditions, streamlined operations, and decreased competition for limited resources. Historical events, such as shifts in population density or industrial decline, often contribute to scenarios where bustling locations become quieter and less populated, either temporarily or permanently.
