Traffic congestion - Wikipedia"Traffic jam" redirects here. For other uses, see Traffic jam (disambiguation). A traffic jam in Istanbul, and an opportunity for two simit vendors to sell food to drivers. Traffic congestion is a condition in transport that is characterized by slower speeds, longer trip times, and increased vehicular queueing. Traffic congestion on urban road networks has increased substantially since the 1950s.[
UK snow: Schools and transport hit by disruption
