+Congestion describes a state where the demand on a system exceeds its available [Capacity](/wiki/capacity), impeding the smooth [Flow](/wiki/flow) of elements. This buildup, often seen in [Traffic](/wiki/traffic) and data [Network](/wiki/network)s, leads to delays and reduced efficiency.
+## See also
+- [Queueing](/wiki/queueing)
+- [Bottleneck](/wiki/bottleneck)
+- [Throughput](/wiki/throughput)
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