St. Augustine West Castillo Drive Traffic Signal

Project Description: The project will install a traffic signal on West Castillo Drive at the Cordova Street Intersection. The existing intersection has heavy traffic congestion during peak seasons, festivals, and Nights of Lights events. A parking garage near the intersection contributes to the issues.

Project Status: Planned

Project Stakeholders:

• City of St. Augustine
• St. Johns County Traffic and Transportation Department

Project Service Packages:

• TM03: Traffic Signal Control (St. Augustine Cordova Street Traffic Signal)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
signal control commands	St. Johns County TMC	City of St. Augustine Field Equipment	Planned
signal control device configuration	St. Johns County TMC	City of St. Augustine Field Equipment	Planned
signal control plans	St. Johns County TMC	City of St. Augustine Field Equipment	Planned
signal control status	City of St. Augustine Field Equipment	St. Johns County TMC	Planned
signal fault data	City of St. Augustine Field Equipment	St. Johns County TMC	Planned
signal system configuration	St. Johns County TMC	City of St. Augustine Field Equipment	Planned
traffic detector control	St. Johns County TMC	City of St. Augustine Field Equipment	Planned
traffic detector data	City of St. Augustine Field Equipment	St. Johns County TMC	Planned

Project Functional Requirements (Element - Functional Object):

• City of St. Augustine 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.
• 4: The field element shall return sensor and CCTV system operational status to the controlling center.
• 5: The field element shall return sensor and CCTV system fault data to the controlling center for repair.


• City of St. Augustine Field Equipment - Roadway Field Management Station Operation
• 1: The field element shall accept configuration information from the center.
• 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.


• City of St. Augustine Field Equipment - Roadway Signal Control
• 1: The field element shall control traffic signals under center control.
• 2: The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing.
• 3: The field element shall provide the capability to notify the traffic management center of pedestrian calls and pedestrian accommodations.
• 4: The field element shall report the current signal control information to the center.
• 6: The field element shall return traffic signal controller operational status to the center.
• 7: The field element shall return traffic signal controller fault data to the center.
• 9: The field element shall report current intersection signal timing information to roadside equipment for transmission to connected vehicles.
• 13: The field element shall provide to roadside equipment the intersection geometry and signal phase movement information including phase and timing information, alarm status, and priority/preempt status.


• 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.
• 5: The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution.
• 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).
• 7: The center shall remotely control devices to detect traffic.


• St. Johns County TMC - TMC Roadway Equipment Monitoring
• 1: The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status.
• 3: The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) fault data and send to the maintenance center for repair.
• 7: The center shall exchange data with maintenance centers concerning the reporting of faulty equipment and the schedule/status of their repair. Information exchanged includes details of new equipment faults, and clearances when the faults are cleared.


• St. Johns County TMC - TMC Signal Control
• 1: The center shall remotely control traffic signal controllers.
• 2: The center shall accept notifications of pedestrian calls.
• 3: The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
• 4: The center shall collect traffic signal controller fault data from the field.
• 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.
• 6: The center shall implement control plans to coordinate signalized intersections based on data from sensors.
• 8: The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.
• 9: The center shall implement control plans to coordinate signalized intersections based on data from sensors and connected vehicles.
• 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.
• 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).
• 17: The center shall remotely control devices to detect traffic in the vicinity of traffic signals.

Standards:

• US: NTCIP Signal System Masters - SNMPv3/TLS
• US: NTCIP Traffic Signal - SNMPv3/TLS
• US: NTCIP Transportation Sensors - SNMPv3/TLS

Project Operational Concepts:

Roles and Responsibilities

• St. Johns County Traffic and Transportation Department
• Coordinate emergency traffic signal control with the county EOC/Warning Point.
• Coordinate traffic information with counties adjoining St. Johns County and with cities in the county.
• Coordinate traffic information with FDOT District 2.
• Coordinate traffic information with the City of Jacksonville traffic engineering division.
• Obtain traffic images and traffic flow data using CCTVs and field sensors, and maintain operational control of its own field equipment.
• Operate traffic signal systems for St. Johns County.
• Provide emergency signal preemption for county fire/EMS.
• Provide interconnection between railroad equipment and traffic signal systems to update signal timing when HRIs are blocked by trains.