| Source Element | Destination Element | Flow |
|---|
| Chicago Transit Authority ATSS System | Regional Transportation Authority Travel Information Center (TIC) | transit schedule adherence information |
|---|
| RTA Transit Hub | transit and fare schedules |
| RTA Transit Hub | transit schedule adherence information |
| Chicago Transit Authority Bus Info System | RTA Transit Hub | transit and fare schedules |
|---|
| Chicago Transit Authority Control Center | Chicago Transit Authority Bus Tracker Website | transit and fare schedules |
|---|
| Regional Transportation Authority Travel Information Center (TIC) | transit and fare schedules |
| Regional Transportation Authority Travel Information Center (TIC) | transit schedule adherence information |
| RTA Transit Hub | transit and fare schedules |
| RTA Transit Hub | transit schedule adherence information |
| Metra Consolidated Control Facility | IDOT District 1 Traffic Systems Center (TSC) | transit and fare schedules |
|---|
| RTA Transit Hub | transit and fare schedules |
| Metra GPS Center (TIMS) | RTA Transit Hub | transit and fare schedules |
|---|
| RTA Transit Hub | transit schedule adherence information |
| Metra Passenger Information Display System | RTA Transit Hub | transit and fare schedules |
|---|
| RTA Transit Hub | transit schedule adherence information |
| Pace Control Center (IBS) | Cook County TMC | transit probe data |
|---|
| DuPage County TMC | transit probe data |
| Grundy County TMC | transit probe data |
| Kane County TMC | transit probe data |
| Kendall County TMC | transit probe data |
| Lake County PASSAGE TMC | transit probe data |
| McHenry County TMC | transit probe data |
| Municipal TMCs | transit probe data |
| Regional Transportation Authority Travel Information Center (TIC) | transit and fare schedules |
| Regional Transportation Authority Travel Information Center (TIC) | transit schedule adherence information |
| RTA Transit Hub | transit and fare schedules |
| Will County TMC | transit probe data |
| Pace Regional Paratransit Dispatch | RTA Transit Hub | transit and fare schedules |
|---|
| Private Bus Dispatch | RTA Transit Hub | transit and fare schedules |
|---|
| Regional Transportation Authority Travel Information Center (TIC) | City of Chicago DOT Transportation Website | transit and fare schedules |
|---|
| City of Chicago DOT Transportation Website | transit schedule adherence information |
| RTA Transit Hub | City of Chicago – Skyway Concession Company LLC Operations | transit probe data |
|---|
| City of Chicago DOT Arterial Performance Monitoring System | transit probe data |
| Pace Regional Ridesharing and Vanpooling | transit and fare schedules |
| Private ISPs – Travel Information Services | transit and fare schedules |
| Regional Transportation Authority Travel Information Center (TIC) | transit and fare schedules |