Active service alerts
CAMBUS Football Shuttles and game day detours for 2025
CAMBUS service alert: Art Building stop temporarily relocated spring 2025 - spring 2026
CAMBUS System Map
Fixed-route services
CAMBUS operates 12 fixed routes through campus. All CAMBUS routes are fare-free, open to the public, and accessible to persons with disabilities.
Routes operate based on the University of Iowa's academic calendar.
Click or tap here for more information about the service calendar.
31 Red Route
Academic weekdays
Academic weekends
Break weekdays
Service includes Main Campus, Health Sciences Campus, UI Health Care, West Campus Transportation Center.
32 Blue Route
Academic weekdays
Academic weekends
Break weekdays
Service includes Main Campus, Health Sciences Campus, UI Health Care, West Campus Transportation Center.
34 Research Park
Academic weekdays
Break weekdays
Service between the Research Park campus and the Health Sciences Campus.
35 Interdorm
Academic weekdays
Academic weekends
Service between residence halls and the Pentacrest area.
36 East Dorm Shuttle
Academic weekdays
Service between the east residence halls, including Mayflower, and the Pentacrest area.
41 Hawk Lot-Hospital
Academic weekdays
Break weekdays
Provides direct service between Parking Lot 85, Hawkeye Commuter, and the West Campus Transportation Center.
42 Hawkeye-Pentacrest
Academic weekdays
Break weekdays
Provides service connections between the Hawkeye Campus including Aspire, Health Sciences Campus, and the Pentacrest.
43 Hawkeye Interdorm
Academic weekdays
Academic weekends
Late night and weekend service providing connections between the residence halls, the Pentacrest, West Campus Transportation Center, and the Hawkeye Campus including Aspire.
On-demand service
CAMBUS operates on-demand services year-round on weekdays and some weekends. On-demand services provide rides within limited service areas to and from existing CAMBUS stops.
On-demand rides are fare-free, open to the public, and accessible to persons with disabilities.
Service zones and hours
CAMBUS operates three on-demand service zones. A brief summary of each zone is provided below.
| Zone | Session(s) in service | Service hours |
|---|---|---|
| 61 Commuter | Year-round | Weekdays from 8:45 p.m. to12:30 a.m. |
| 62 Main Campus | Break periods only | Weekdays from 8:45 p.m. to 12:30 a.m. Summer weekends from 11:30 a.m. to 6:30 p.m. |
| 63 Research Park/ Medical Center North Liberty | Year-round | Weekdays from 6 a.m. to 6 p.m. |
Service frequency tables
Weekdays - fall and spring academic
Route and service information during fall and spring academic weekdays.
Please note that service times are approximate. Visit the route information pages for complete schedule information.
| Route | Early AM Before 6 a.m. | AM Peak 6 a.m. - 8:30 a.m. | Midday 8:30 a.m. - 3:30 p.m. | PM Peak 3:30 p.m. - 5:30 p.m. | Evening 5:30 p.m. - 9 p.m. | Late night 9 p.m. - 12:30 a.m. |
|---|---|---|---|---|---|---|
| 31 Red Route | No service | 12 | 12 | 12 | 18 | 36 |
| 32 Blue Route | No service | 12 | 12 | 12 | 18 | 36 |
| 34 Research Park | No service | 25 | 50 | 25 - 35 | 25 - 35 | No service |
| 35 Interdorm | No service | 10 | 10 | 20 | 15 - 30 | No service |
| 36 East Dorm Shuttle | No service | 20 | N/A | 20 | No service | |
| 41 Hawk Lot-Hospital | 20 | 7 - 10 | 10 | 7 - 10 | 10 | No service |
| 42 Hawkeye-Pentacrest | No service | 20 | 20 | 20 - 30 | 20 | No service |
| 43 Hawkeye Interdorm | No service | 60 | ||||
| 51 Hospital-Finkbine/Arena | 12 | 4 | 12 | 4 | 12 | No service |
| 52 Finkbine-Pentacrest | No service | 15 | 15 | 20 | 30 | No service |
| 53 VA Loop Shuttle | 15 | No service | 15 | No service | ||
| 54 Hancher-Newton | No service | 15 | No service | 15 | No service | |
| Zone | Hours of service |
|---|---|
| 61 Commuter | 8:45 p.m. - 12:30 a.m. |
| 62 Main Campus | No service during fall and spring academic |
| 63 Research Park/Medical Center North Liberty | 6 a.m. - 6 p.m. |
Weekends - fall and spring academic
| Route | Hours of service | Service frequency |
|---|---|---|
| 31M Red Route | 11:30 a.m. - 12:30 a.m. | 36 |
| 32M Blue Route | 11:30 a.m. - 12:30 a.m. | 36 |
| 35 Interdorm | 8:30 a.m. - 11 a.m. | 30 |
| 43 Hawkeye Interdorm | 11 a.m. - 1 a.m. | 60 |
There are no on-demand services during fall and spring academic weekends.
Weekdays - break and summer
Route and service information during fall break, winter break, spring break, and summer weekdays.
Please note that service times are approximate. Visit the route information pages for complete schedule information.
| Route | Early AM Before 6 a.m. | AM Peak 6 a.m. - 8:30 a.m. | Midday 8:30 a.m. - 3:30 p.m. | PM Peak 3:30 p.m. - 5:30 p.m. | Evening 5:30 p.m. - 9 p.m. | Late night 9 p.m. - 12:30 a.m. |
|---|---|---|---|---|---|---|
| 31 Red Route | No service | 18 | 36 | 18 | 36 | No service |
| 32 Blue Route | No service | 18 | 36 | 18 | 36 | No service |
| 34 Research Park | No service | 25 | 50 | 25 - 35 | 25 - 35 | No service |
| 35 Interdorm | No service | |||||
| 36 East Dorm Shuttle | No service | |||||
| 41 Hawk Lot-Hospital | 20 | 7 - 10 | 10 | 7 - 10 | 20 | No service |
| 42 Hawkeye-Pentacrest | No service | 20 | 40 | 20 - 30 | 40 | No service |
| 43 Hawkeye Interdorm | No service | |||||
| 51 Hospital-Finkbine/Arena | 12 | 4 | 12 | 4 | 12 | No service |
| 52 Finkbine-Pentacrest | No service | 15 | 30 | 20 | 30 | No service |
| 53 VA Loop Shuttle | 15 | No service | ||||
| 54 Hancher-Newton | No service | |||||
Weekends - break and summer
There is no weekend fixed-route service during fall break, winter break, and spring break.
During summer, weekend service is provided from 11:30 a.m. to 6:30 p.m. via the On-Demand Shuttle.