DDOT

The Detroit Department of Transportation (DDOT) is the primary public transportation operator serving Detroit, Michigan. In existence since 1922, DDOT is a division of the city government, headed by a director appointed by the mayor. Primarily serving Detroit and its enclaves, DDOT is supplemented by suburban service from the Suburban Mobility Authority for Regional Transportation (SMART). In 2025, the system had a ridership of 14,737,000, or about 48,900 per weekday as of the fourth quarter of 2025.