Congestion/kənˈdʒestʃən/ Definition 1 of 3Pro Tip 1/3Urban Context Often relates to city issues like traffic delays. Trying to find a parking space added to the congestion downtown. Pro Tip 2/3Avoid Peak Hour Congestion often occurs during morning and evening rush hours. She left early to avoid the congestion on the roads. Pro Tip 3/3Cost Implication Some cities impose fees to reduce congestion. The congestion charge in London aims to decrease traffic.