This project is a dynamic train tracker system and provides LED display of train arrivals at all stations on a countdown clock. 1000+ signs have been installed. The system needs to be linked with the public address system.
| Source | Flow | Destination | Status |
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| Chicago Transit Authority Active Transit Station Signs | transit information user request | Chicago Transit Authority ATSS System | Existing |
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| Chicago Transit Authority ATSS System | emergency evacuation coordination | Chicago Transit Authority Control Center | Existing |
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| Chicago Transit Authority ATSS System | personal transit information | RTA/NITA Multimodal Trip Planner | Existing |
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| Chicago Transit Authority ATSS System | transit and fare schedules | RTA/NITA Transit Hub | Existing |
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| Chicago Transit Authority ATSS System | transit emergency coordination data | Chicago Transit Authority Control Center | Existing |
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| Chicago Transit Authority ATSS System | transit passenger certification check | Chicago Transit Authority Control Center | Existing |
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| Chicago Transit Authority ATSS System | transit passenger certification confirm | Chicago Transit Authority Control Center | Existing |
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| Chicago Transit Authority ATSS System | transit schedule adherence information | RTA/NITA Transit Hub | Existing |
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| Chicago Transit Authority ATSS System | transit traveler information | Chicago Transit Authority Active Transit Station Signs | Existing |
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| Chicago Transit Authority ATSS System | transit traveler information coordination | Chicago Transit Authority Control Center | Existing |
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| Chicago Transit Authority ATSS System | transit traveler information coordination | RTA/NITA Transit Hub | Existing |
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| Chicago Transit Authority Control Center | emergency evacuation coordination | Chicago Transit Authority ATSS System | Existing |
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| Chicago Transit Authority Control Center | transit emergency coordination data | Chicago Transit Authority ATSS System | Existing |
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| Chicago Transit Authority Control Center | transit passenger certification check | Chicago Transit Authority ATSS System | Existing |
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| Chicago Transit Authority Control Center | transit passenger certification confirm | Chicago Transit Authority ATSS System | Existing |
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| Chicago Transit Authority Control Center | transit traveler information | Chicago Transit Authority Rapid Transit Vehicles | Planned |
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| Chicago Transit Authority Control Center | transit traveler information coordination | Chicago Transit Authority ATSS System | Existing |
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| RTA/NITA Multimodal Trip Planner | transit information user request | Chicago Transit Authority ATSS System | Existing |
|---|
| RTA/NITA Transit Hub | transit traveler information coordination | Chicago Transit Authority ATSS System | Existing |
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