Polk County-wide ATMS Phase I Construction
Project Description: This project will consist of the Phase 1 Deployment of an ATMS system along arterial roadways in Polk County.
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 Advanced Rail Crossing Management
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1: The center shall remotely control highway-rail intersection (HRI) equipment located in the field.
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4: The center shall provide the highway-rail intersection (HRI) equipment operational status to rail operations centers.
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6: The center shall implement control plans to coordinate signalized intersections around highway-rail intersections (HRI), under control of center personnel, based on data from sensors and surveillance monitoring traffic conditions, incidents, equipment faults, pedestrian crossings, etc.
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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 Roadway Equipment Monitoring
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1: The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status.
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2: The center shall collect and store CCTV surveillance system (traffic, pedestrian) operational status.
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3: The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) fault data and send to the maintenance center for repair.
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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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10: The center shall adjust signal timing in respond to a signal prioritization, signal preemption, pedestrian call, multi-modal crossing activation, or other requests for right-of-way.
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4: The center shall collect traffic signal controller fault data from the field.
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6: The center shall implement control plans to coordinate signalized intersections based on data from sensors.
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Polk County Traffic Control Equipment - Roadway Advanced Rail Crossing
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1: The field element shall collect and process, traffic sensor data in the vicinity of an advanced highway-rail intersection (HRI).
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6: The field element shall receive track status and arriving train information from the rail wayside equipment that can be passed on to the traffic management center. This may include the current status of the tracks and when a train is expected and/or how long the crossing will be closed.
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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.
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.
- Provide emergency signal preemption for county fire and county EMS agencies for signals at Fire/EMS stations
- Provide signal preemption for railroads.
Last Updated 5/25/2023
