Lee County Adaptive Signal System
Project Description: This project would install an adaptive traffic signal system in Lee 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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FDOT SWIFT Center - TMC Basic Surveillance
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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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FDOT SWIFT Center - TMC Regional Traffic Management
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2: The center shall exchange traffic control information with other traffic management centers to support remote monitoring and control of traffic management devices (e.g. signs, sensors, signals, cameras, etc.).
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Lee County and Cities Field 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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4: The field element shall return sensor and CCTV system operational status to the controlling center.
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5: The field element shall return sensor and CCTV system fault data to the controlling center for repair.
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Lee County and Cities Field Equipment - Roadway Field Management Station Operation
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1: The field element shall accept configuration information from the center.
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2: The field element shall pass data provided by the center to local field devices and report data from the field devices back to the center.
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Lee County and Cities Field Equipment - Roadway Signal Control
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1: The field element shall control traffic signals under center control.
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2: The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing.
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3: The field element shall provide the capability to notify the traffic management center of pedestrian calls and pedestrian accommodations.
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4: The field element shall report the current signal control information to the center.
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5: The field element shall report current preemption status 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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9: The field element shall report current intersection signal timing information to roadside equipment for transmission to connected vehicles.
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Lee County-Wide Advanced Traffic Management System - 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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4: The center shall distribute road network conditions data (raw or processed) based on collected and analyzed traffic sensor and surveillance data to other centers.
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5: The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution.
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6: The center shall maintain a database of surveillance equipment and sensors and associated data (including the roadway on which they are located, the type of data collected, and the ownership of each).
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7: The center shall remotely control devices to detect traffic.
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Lee County-Wide Advanced Traffic Management System - 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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4: The center shall collect and store CCTV surveillance system (traffic, pedestrian) fault data send to the maintenance center for repair.
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Lee County-Wide Advanced Traffic Management System - TMC Signal Control
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1: The center shall remotely control traffic signal controllers.
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12: The center shall adjust signal timing in respond to traffic and environmental parameters at each intersection in real time and adapts so that the traffic network is optimized using available green time to serve the actual traffic demands while minimizing the environmental impact.
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15: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements at or near signalized intersections.
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16: The center shall maintain a database of traffic sensors and associated data (including the roadway on which they are located, the type of data collected, and the ownership of each).
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17: The center shall remotely control devices to detect traffic in the vicinity of traffic signals.
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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.
Standards:
Project Operational Concepts:
Roles and Responsibilities
- FDOT District 1
- Coordinate CCTV images with county and city TMCs
- Lee County DOT
- 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 Lee County.
Last Updated 5/25/2023
