Polk County Traffic Signal Upgrades
Project Description: This project would upgrade traffic signals in Polk County and connect them to the Polk County TMC
Project Status: Planned
Project Stakeholders:
Interconnect and Flow
Diagrams
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Project Information Flows:
Project Functional Requirements (Element - Functional Object):
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Polk County TMC - TMC Basic Surveillance
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1: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
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2: The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.
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Polk County TMC - TMC Signal Control
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1: The center shall remotely control traffic signal controllers.
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3: The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
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4: The center shall collect traffic signal controller fault data from the field.
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5: The center shall manage (define, store and modify) control plans to coordinate signalized intersections, to be engaged at the direction of center personnel or according to a daily schedule.
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6: The center shall implement control plans to coordinate signalized intersections based on data from sensors.
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7: The center shall manage boundaries of the control sections used within the signal system.
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8: The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.
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Polk County Traffic Control Equipment - Roadway Basic Surveillance
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1: The field element shall collect, process, digitize, and send traffic sensor data (speed, volume, and occupancy) to the center for further analysis and storage, under center control.
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2: The field element shall collect, process, and send traffic images to the center for further analysis and distribution.
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Polk County Traffic Control Equipment - Roadway Signal Control
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1: The field element shall control traffic signals under center control.
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4: The field element shall report the current signal control information to the center.
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6: The field element shall return traffic signal controller operational status to the center.
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7: The field element shall return traffic signal controller fault data to the center.
Standards:
Project Operational Concepts:
Roles and Responsibilities
- Polk County Transportation Division
- Monitor traffic images and traffic flow data through CCTVs and field sensors, and maintain operational control of its own field equipment.
- Operate traffic signal systems for Polk County.
Last Updated 5/25/2023
