degree of congestion; congestion level
Used in technical or descriptive contexts to quantify how crowded a place, road, or network is. Often appears in traffic reports, facility management, or IT discussions.
This app shows the congestion level of the station in real time.
The degree of road congestion changes greatly depending on the time of day.
Compound of 混雑 (congestion) and 度 (degree). The exact historical derivation is uncertain, but the word follows a common pattern for forming nouns indicating a measurable level.