St. Johns County Field Equipment

Status: Existing

Description: Represents the ITS field equipment operated by St. Johns County, including traffic signals. The system is primarily controlled as isolated intersections operating on an actuated or pre–timed basis. However, there are small closed–loop systems operating in the historic downtown area of St. Augustine along the US 1 corridor and in the Ponte Vedra Beach area along the SR A1A corridor. All systems and all but one intersection have the ability to communicate with the County Public Works Department in St. Augustine.

Stakeholder: St. Johns County Traffic and Transportation Department

Architecture Flow Diagrams
which include St. Johns County Field Equipment:

• St. Johns County Field Equipment City of St. Augustine Field Equipment
• St. Johns County Field Equipment Commercial Vehicle
• St. Johns County Field Equipment County and City Roadway Maintenance and Construction Systems
• St. Johns County Field Equipment County and Local Drawbridge Systems
• St. Johns County Field Equipment County Fire EMS/Rescue Vehicles
• St. Johns County Field Equipment National Hurricane Center Info. System
• St. Johns County Field Equipment National Weather Service
• St. Johns County Field Equipment Railroad Operators Wayside Equipment
• St. Johns County Field Equipment St. Johns County TMC
• St. Johns County Field Equipment Sunshine Bus Company Vehicles
• St. Johns County Field Equipment Vehicles

Architecture Flows
to/from the St. Johns County Field Equipment:

St. Johns County Field Equipment City of St. Augustine Field Equipment

• dynamic sign coordination


• passive vehicle monitoring coordination


• reversible lane coordination


• signal control coordination


• traffic detector coordination


• video surveillance coordination

St. Johns County Field Equipment Commercial Vehicle

• cooperative adaptive cruise control parameters_ud_cvria


• driver information_ud_cvria

St. Johns County Field Equipment County and City Roadway Maintenance and Construction Systems

• environmental sensor data

St. Johns County Field Equipment County and Local Drawbridge Systems

• highway control status

St. Johns County Field Equipment National Hurricane Center Info. System

• environmental sensor data

St. Johns County Field Equipment National Weather Service

• environmental sensor data

St. Johns County Field Equipment Railroad Operators Wayside Equipment

• rail crossing operational status

St. Johns County Field Equipment St. Johns County TMC

• environmental sensor data


• passive vehicle monitoring data


• rail crossing status


• right-of-way request notification


• roadway advisory radio status


• roadway dynamic signage status


• signal control status


• signal fault data


• traffic detector data


• traffic images


• traffic monitoring application status


• traffic situation data

St. Johns County Field Equipment Vehicles

• driver information_ud_cvria


• vehicle situation data parameters

City of St. Augustine Field EquipmentSt. Johns County Field Equipment

• dynamic sign coordination


• passive vehicle monitoring coordination


• reversible lane coordination


• signal control coordination


• traffic detector coordination


• video surveillance coordination

Commercial VehicleSt. Johns County Field Equipment

• cooperative adaptive cruise control status_ud_cvria


• vehicle platoon coordination_ud_cvria


• vehicle profile_ud_cvria

County and City Roadway Maintenance and Construction SystemsSt. Johns County Field Equipment

• environmental sensor control

County and Local Drawbridge SystemsSt. Johns County Field Equipment

• multimodal crossing status

County Fire EMS/Rescue VehiclesSt. Johns County Field Equipment

• local signal preemption request

Railroad Operators Wayside EquipmentSt. Johns County Field Equipment

• track status

St. Johns County TMCSt. Johns County Field Equipment

• environmental sensor control


• passive vehicle monitoring control


• rail crossing control data


• rail crossing request


• roadway advisory radio data


• roadway dynamic signage data


• signal control commands


• signal control device configuration


• signal control plans


• signal system configuration


• situation data collection parameters


• traffic detector control


• traffic monitoring application info


• video surveillance control

Sunshine Bus Company VehiclesSt. Johns County Field Equipment

• local signal priority request

VehiclesSt. Johns County Field Equipment

• communications signature


• vehicle location and motion for surveillance


• vehicle situation data

National ITS Architecture Subsystems
mapped to the St. Johns County Field Equipment:

• Connected Vehicle Roadside Equipment Subsystem
• ITS Roadway Equipment Subsystem

National ITS Architecture Services
associated with St. Johns County Field Equipment:

• PM04 - Regional Parking Management (St. Augustine Parking Management System) -- (Graphic)
• PS03 - Emergency Vehicle Preemption (St. Johns County Traffic Signal System) -- (Graphic)
• PS03 - Emergency Vehicle Preemption (St. Johns County Traffic Signal System) -- (Graphic)
• PT09 - Transit Signal Priority (Sunshine Bus Company) -- (Graphic)
• PT09 - Transit Signal Priority (Sunshine Bus Company) -- (Graphic)
• TM01 - Infrastructure-Based Traffic Surveillance (St. Johns County Travel Time System) -- (Graphic)
• TM01 - Infrastructure-Based Traffic Surveillance (St. Johns County Traffic Signal System) -- (Graphic)
• TM02 - Vehicle-Based Traffic Surveillance (St. Johns County) -- (Graphic)
• TM03 - Traffic Signal Control (St. Johns County Traffic Signal System) -- (Graphic)
• TM06 - Traffic Information Dissemination (St. Johns County Traffic Signal System) -- (Graphic)
• TM13 - Standard Railroad Grade Crossing (Clay County / County and Local / St. Johns County) -- (Graphic)
• TM18 - Drawbridge Management (Bridge Notification System) -- (Graphic)
• WX01 - Weather Data Collection (St. Johns County) -- (Graphic)
• WX01 - Weather Data Collection (St. Johns County) -- (Graphic)