when does heavy traffic occur in urban cities
Rush hour A rush hour (American English, British English) is a part of the day during which traffic congestion on roads and crowding on public transport is at its highest. Normally, this happens twice every weekdayâ€”once in the morning and once in the afternoon-evening, the times during which the most people commute. The term is often used for a period of peak congestion that may last for more than one hour.