Detroit Department of Transportation
| Parent | City of Detroit |
|---|---|
| Founded | 1922 |
| Headquarters | 100 Mack Avenue |
| Service area | Detroit and select surrounding cities |
| Service type | Bus Paratransit |
| Routes | 37 |
| Hubs | Rosa Parks Transit Center Jason Hargrove Transit Center |
| Fleet | 323 |
| Daily ridership | 43,100 (weekdays, Q1 2025) |
| Annual ridership | 14,785,400 (2024) |
| Fuel type | Diesel Electric |
| Operator | City of Detroit |
| Director | Robert Cramer |
| Website | detroitmi |
The Detroit Department of Transportation (DDOT) (pronounced DEE-dot) 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 2024, the system had a ridership of 14,785,400, or about 43,100 per weekday as of the first quarter of 2025.