St. Johns County Traffic Surveillance Enhancements

Project Description: This project enhances St. Johns County traffic surveillance capabilities, including installing additional cameras and sensors.

Project Status: Ongoing

Project Stakeholders:

• St. Johns County Traffic and Transportation Department

Project Service Packages:

• TM01: Infrastructure-Based Traffic Surveillance (St. Johns County Traffic Signal System)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
traffic detector control	St. Johns County TMC	St. Johns County Field Equipment	Ongoing
traffic detector data	St. Johns County Field Equipment	St. Johns County TMC	Ongoing
traffic images	St. Johns County Field Equipment	St. Johns County TMC	Ongoing
video surveillance control	St. Johns County TMC	St. Johns County Field Equipment	Ongoing

Project Functional Requirements (Element - Functional Object):

• St. Johns County Field Equipment - Roadway Basic Surveillance
• 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.
• 2: The field element shall collect, process, and send traffic images to the center for further analysis and distribution.
• 4: The field element shall return sensor and CCTV system operational status to the controlling center.


• St. Johns County TMC - TMC Basic Surveillance
• 1: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
• 2: The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.

Standards:

• US: NTCIP Transportation Sensors - SNMPv3/TLS
• US: NTCIP Video Switches - SNMPv3/TLS

Project Operational Concepts:

Roles and Responsibilities

• St. Johns County Traffic and Transportation Department
• Obtain traffic images and traffic flow data using CCTVs and field sensors, and maintain operational control of its own field equipment.