Expansion of variable message signs (BusInfo signs) providing real–time bus information. The system uses dynamic scheduling. Currently Pace utilizes 3 different vendors for bus information signs (one for shelters, one for larger complex overhead signs, one for existing structures). The hardware varies between each vendor. The primary challenge with 3 vendors is keeping sign content consistent. There is potential for Pace to integrate all variable message signs into one system as existing contracts expire. Approximately 100 sign locations are currently operational. The existing contracts allows more signs to be installed, with every Pace Pulse bus station to have bus tracker signs. Pace uses an additional vendor for text alerts.
| Source | Flow | Destination | Status |
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| Chicago Transit Authority Bus Info System | driver instructions | Chicago Transit Authority Bus Vehicles | Planned |
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| Chicago Transit Authority Bus Info System | remote vehicle disable | Chicago Transit Authority Bus Vehicles | Planned |
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| Chicago Transit Authority Bus Info System | transit archive data | Chicago Transit Authority Data Archive | Planned |
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| Chicago Transit Authority Bus Info System | transit schedule information | Chicago Transit Authority Bus Vehicles | Planned |
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| Chicago Transit Authority Bus Info System | transit service coordination | Chicago Transit Authority Control Center | Planned |
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| Chicago Transit Authority Bus Info System | transit service coordination | Regional Transportation Authority Travel Information Center (TIC) | Planned |
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| Chicago Transit Authority Bus Info System | transit traveler information | Chicago Transit Authority Bus Vehicles | Existing |
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| Chicago Transit Authority Bus Info System | transit traveler information | Chicago Transit Authority BusInfo Signs | Planned |
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| Chicago Transit Authority Bus Info System | transit traveler information coordination | Chicago Transit Authority Control Center | Existing |
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| Chicago Transit Authority Bus Info System | transit traveler information coordination | Regional Transportation Authority Travel Information Center (TIC) | Existing |
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| Chicago Transit Authority Bus Info System | transit vehicle operator authentication update | Chicago Transit Authority Bus Vehicles | Planned |
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| Chicago Transit Authority Bus Info System | transit vehicle operator information | Chicago Transit Authority Bus Vehicles | Planned |
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| Chicago Transit Authority Bus Vehicles | demand response passenger and use data | Chicago Transit Authority Bus Info System | Planned |
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| Chicago Transit Authority Bus Vehicles | transit traveler request | Chicago Transit Authority Bus Info System | Existing |
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| Chicago Transit Authority Bus Vehicles | transit vehicle conditions | Chicago Transit Authority Bus Info System | Planned |
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| Chicago Transit Authority Bus Vehicles | transit vehicle location data | Chicago Transit Authority Bus Info System | Planned |
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| Chicago Transit Authority Bus Vehicles | transit vehicle operator authentication information | Chicago Transit Authority Bus Info System | Planned |
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| Chicago Transit Authority Bus Vehicles | transit vehicle schedule performance | Chicago Transit Authority Bus Info System | Planned |
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| Chicago Transit Authority BusInfo Signs | transit information user request | Chicago Transit Authority Bus Info System | Planned |
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| Chicago Transit Authority Control Center | transit service coordination | Chicago Transit Authority Bus Info System | Planned |
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| Chicago Transit Authority Control Center | transit traveler information coordination | Chicago Transit Authority Bus Info System | Existing |
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| Chicago Transit Authority Data Archive | archive status | Chicago Transit Authority Bus Info System | Planned |
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| Pace BusInfo Signs | transit information user request | Pace BusInfo System | Existing |
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| Pace BusInfo Signs | transit information user request | RTA/NITA Transit Hub | Planned |
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| Pace BusInfo System | driver instructions | Pace Transit Bus Vehicles | Existing |
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| Pace BusInfo System | personal transit information | RTA/NITA Multimodal Trip Planner | Existing |
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| Pace BusInfo System | transit fare information | Pace WebWatch Internet Site | Planned |
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| Pace BusInfo System | transit service coordination | Pace Control Center (IBS) | Planned |
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| Pace BusInfo System | transit service coordination | RTA/NITA Transit Hub | Planned |
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| Pace BusInfo System | transit traveler information | Pace BusInfo Signs | Existing |
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| Pace BusInfo System | transit traveler information | Pace Transit Bus Vehicles | Existing |
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| Pace BusInfo System | transit traveler information coordination | Pace Control Center (IBS) | Planned |
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| Pace BusInfo System | transit traveler information coordination | RTA/NITA Transit Hub | Existing |
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| Pace Control Center (IBS) | transit service coordination | Pace BusInfo System | Planned |
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| Pace Control Center (IBS) | transit traveler information coordination | Pace BusInfo System | Planned |
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| Pace Transit Bus Vehicles | transit traveler request | Pace BusInfo System | Existing |
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| Pace WebWatch Internet Site | trip confirmation | Pace BusInfo System | Planned |
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| RTA/NITA Multimodal Trip Planner | transit information user request | Pace BusInfo System | Existing |
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| RTA/NITA Transit Hub | broadcast traveler information | Pace BusInfo Signs | Planned |
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| RTA/NITA Transit Hub | transit service coordination | Pace BusInfo System | Planned |
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| RTA/NITA Transit Hub | transit traveler information | Pace BusInfo Signs | Planned |
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| RTA/NITA Transit Hub | transit traveler information coordination | Pace BusInfo System | Existing |
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