This feature layer consists of polylines that represent Detroit Department of Transportation's (DDOT's) public service fixed bus routes. The dataset includes the names, numbers, directions, orientations, total miles, frequencies, spans, operation days, and brief descriptions of areas/streets served for each route in the system. Frequency varies by route but is separated into base (time between peaks), peak, and night. Peak refers to the busiest hours in the AM (typically 6-9) and PM (typically 3-6) where frequency is often increased. The number following the type of frequency or "span" refers to the day type: 1 for weekday, 6 for Saturday, and 7 for Sunday. For example, BaseFreq1 refers to Weekday Base Frequency, while NightFreq6 refers to Saturday Night Frequency. This shapefile was updated to reflect changes made for the September 2026 run pick. Visit this link for the latest updates and reroute notices: https://detroitmi.gov/departments/detroit-department-transportation/route-updates