City of Sarasota CAV Project

Project Description: This project proposes to improve road user safety by supporting the vision of the region and the city by deploying CAV technologies. Future deployments to build on this initial CAV project application will include expanding this project to deploy the CV/AV technology platform at the City's core traffic signal locations, developing a Smart City Traffic and Technology management
center, and implementing additional third–party software to improve vulnerable road user safety and traffic management as well as can communicate with Automated and Connected Vehicles.

Project Status: Planned

Project Stakeholders:

• City of Sarasota
• FDOT CO
• Travelers

Project Service Packages:

• SU01: Connected Vehicle System Monitoring and Management (City of Sarasota CAV)
• SU04: Map Management (City of Sarasota CAV)
• SU08: Security and Credentials Management (City of Sarasota CAV)
• TM02: Vehicle-Based Traffic Surveillance (City of Sarasota CAV)
• TM04: Connected Vehicle Traffic Signal System (City of Sarasota CAV)
• VS12: Pedestrian and Cyclist Safety (City of Sarasota CAV)
• VS13: Intersection Safety Warning and Collision Avoidance (City of Sarasota CAV)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
equipment control commands	CAV Authorizing Center	City of Sarasota CAV Field Equipment	Planned
equipment control commands	City of Sarasota TMC	City of Sarasota CAV Field Equipment	Planned
intersection control status	City of Sarasota Traffic Control Equipment	City of Sarasota CAV Field Equipment	Planned
intersection geometry	CAV-ITS Map Update System	City of Sarasota CAV Field Equipment	Planned
intersection geometry	CAV-ITS Map Update System	City of Sarasota TMC	Planned
intersection geometry	City of Sarasota CAV Field Equipment	Private Travelers Personal Computing Devices	Planned
intersection geometry	City of Sarasota CAV Field Equipment	Vehicles	Planned
intersection infringement info	City of Sarasota CAV Field Equipment	City of Sarasota Traffic Control Equipment	Planned
intersection infringement info	Vehicles	City of Sarasota CAV Field Equipment	Planned
intersection management application info	City of Sarasota TMC	City of Sarasota CAV Field Equipment	Planned
intersection management application status	City of Sarasota CAV Field Equipment	City of Sarasota TMC	Planned
intersection safety application info	City of Sarasota TMC	City of Sarasota CAV Field Equipment	Planned
intersection safety application status	City of Sarasota CAV Field Equipment	City of Sarasota TMC	Planned
intersection safety warning	City of Sarasota CAV Field Equipment	Private Travelers Personal Computing Devices	Planned
intersection safety warning	City of Sarasota CAV Field Equipment	Vehicles	Planned
intersection status	City of Sarasota CAV Field Equipment	Private Travelers Personal Computing Devices	Planned
intersection status	City of Sarasota CAV Field Equipment	Vehicles	Planned
intersection status monitoring	City of Sarasota CAV Field Equipment	City of Sarasota Traffic Control Equipment	Planned
map update notification	City of Sarasota TMC	CAV-ITS Map Update System	Planned
map updates	CAV-ITS Map Update System	City of Sarasota CAV Field Equipment	Planned
map updates	CAV-ITS Map Update System	City of Sarasota TMC	Planned
misbehavior report	City of Sarasota CAV Field Equipment	FDOT SCMS	Planned
misbehavior report	City of Sarasota TMC	FDOT SCMS	Planned
misbehavior report	Vehicles	FDOT SCMS	Planned
personal crossing safety information	City of Sarasota CAV Field Equipment	Private Travelers Personal Computing Devices	Planned
personal location	Private Travelers Personal Computing Devices	City of Sarasota CAV Field Equipment	Planned
personal location	Private Travelers Personal Computing Devices	Vehicles	Planned
personal signal service request	Private Travelers Personal Computing Devices	City of Sarasota CAV Field Equipment	Planned
right-of-way request notification	City of Sarasota Traffic Control Equipment	City of Sarasota TMC	Planned
roadway geometry	CAV-ITS Map Update System	City of Sarasota CAV Field Equipment	Planned
RSE application information	CAV Authorizing Center	City of Sarasota CAV Field Equipment	Planned
RSE application information	City of Sarasota TMC	City of Sarasota CAV Field Equipment	Planned
RSE application install/upgrade	CAV Authorizing Center	City of Sarasota CAV Field Equipment	Planned
RSE application install/upgrade	City of Sarasota TMC	City of Sarasota CAV Field Equipment	Planned
RSE application status	City of Sarasota CAV Field Equipment	City of Sarasota TMC	Planned
security credential revocations	FDOT SCMS	City of Sarasota CAV Field Equipment	Planned
security credential revocations	FDOT SCMS	City of Sarasota TMC	Planned
security credential revocations	FDOT SCMS	Vehicles	Planned
security credentials	FDOT SCMS	City of Sarasota CAV Field Equipment	Planned
security credentials	FDOT SCMS	City of Sarasota TMC	Planned
security credentials	FDOT SCMS	Vehicles	Planned
security policy and networking information	FDOT SCMS	City of Sarasota CAV Field Equipment	Planned
security policy and networking information	FDOT SCMS	City of Sarasota TMC	Planned
security policy and networking information	FDOT SCMS	Vehicles	Planned
signal control commands	City of Sarasota TMC	City of Sarasota Traffic Control Equipment	Planned
signal control device configuration	City of Sarasota TMC	City of Sarasota Traffic Control Equipment	Planned
signal control plans	City of Sarasota TMC	City of Sarasota Traffic Control Equipment	Planned
signal control status	City of Sarasota Traffic Control Equipment	City of Sarasota TMC	Planned
signal fault data	City of Sarasota Traffic Control Equipment	City of Sarasota TMC	Planned
situation data collection parameters	City of Sarasota TMC	City of Sarasota CAV Field Equipment	Planned
traffic detector control	City of Sarasota TMC	City of Sarasota Traffic Control Equipment	Planned
traffic detector data	City of Sarasota Traffic Control Equipment	City of Sarasota TMC	Planned
traffic monitoring application info	City of Sarasota TMC	City of Sarasota CAV Field Equipment	Planned
traffic monitoring application status	City of Sarasota CAV Field Equipment	City of Sarasota TMC	Planned
traffic situation data	City of Sarasota CAV Field Equipment	City of Sarasota TMC	Planned
vehicle location and motion	Vehicles	City of Sarasota CAV Field Equipment	Planned
vehicle location and motion	Vehicles	Private Travelers Personal Computing Devices	Planned
vehicle location data for mapping	City of Sarasota CAV Field Equipment	CAV-ITS Map Update System	Planned

Project Functional Requirements (Element - Functional Object):

• CAV Authorizing Center - Center Connected Vehicle Infrastructure Management
• 1: The Center shall be capable of monitoring the operational status of Connected Vehicle Roadside Equipment applications.
• 2: The Center shall be capable of modifying the operational status of Connected Vehicle Roadside Equipment applications.
• 3: The Center shall request Connected Vehicle Roadside Equipment maintenance actions from other responsible centers.
• 4: The Center shall be capable of modifying the operational status of Connected Vehicle Roadside Equipment.
• 5: The Center shall track the status of Connected Vehicle Roadside Equipment maintenance actions.


• CAV Authorizing Center - Core Authorization
• 1: The Center shall provide valid user permission information to the CCMS
• 2: The Center shall provide a response to the requesting Center identifying the validity and status of the permission request.
• 3: The Center shall determine if a permission request is valid.
• 4: The Center shall coordinate user permission information with other centers authorized to provide that information.
• 5: The Center shall accept permissions requests from Centers.


• CAV Authorizing Center - ITS Management Support
• 1: The ITS Object shall provide its network address, service offerings and metrics characterizing those services to vehicles within the broadcast range of the ITS Object's short range communications equipment.


• CAV-ITS Map Update System - Map Management
• 21: The Center shall provide intersection geometry updates to Vehicles.
• 22: The Center shall provide basemap updates to Vehicles.
• 25: The Center shall provide roadway geometry updates to Vehicles.
• 27: The Center shall provide basemap updates to Connected Vehicle Roadside Equipment.
• 5: The Center shall provide basemap updates to other Centers.


• City of Sarasota CAV Field Equipment - ITS Management Support
• 1: The ITS Object shall provide its network address, service offerings and metrics characterizing those services to vehicles within the broadcast range of the ITS Object's short range communications equipment.
• 2: The ITS Object shall provide its network address, service offerings and metrics characterizing those services to the Object Registration and Discovery Service.
• 3: The ITS Object shall obtain network addresses from the Object Registration and Discovery Service.
• 4: The ITS Object shall make network address information available to onboard applications.
• 5: The ITS Object shall provide its configuration and operational status information to the Service Monitor
• 6: The ITS Object shall acquire regulatory information relevant to the operation of the ITS Object from the CCMS.


• City of Sarasota CAV Field Equipment - ITS Security Support
• 1: The ITS Object shall obtain security policy information from the Cooperative Intelligent Transportation System Credentials Management System (CCMS).
• 10: The ITS Object shall maintain cryptographic secret information so that those secrets are accessible only to ITS Security Support, and not to any other Functional Object.
• 11: The ITS Object shall request pseudonymous credentials from the CCMS.
• 12: The ITS Object shall provide messages (that it receives) that indicate potential misbehavior/malfunction to the CCMS.
• 13: The ITS Object shall request permissions from the Center that manages permissions requests.
• 2: The ITS Object shall request enrollment credentials from the CCMS.
• 3: The ITS Object shall obtain the CCMS' trust credentials.
• 4: The ITS Object shall provide a mechanism for on-board applications to digitally sign messages using keys secured by the CCMS' trust authority.
• 5: The ITS Object shall provide a mechanism for on-board applications to authenticate messages secured by the CCMS' trust authority.
• 6: The ITS Object shall provide a mechanism for on-board applications to encrypt messages using keys secured by the CCMS' trust authority.
• 7: The ITS Object shall provide a mechanism for on-board applications to decrypt messages using keys secured by the CCMS' trust authority.
• 8: The ITS Object shall obtain a list of revoked credentials from the CCMS.
• 9: The ITS Object shall make the list of revoked credentials available to on-board applications.


• City of Sarasota CAV Field Equipment - RSE Device Management
• 1: The field element shall monitor the operational status (state of the device, configuration, and fault data) of connected sensors (such as traffic, infrastructure, environmental, security, speed) and devices (such as highway advisory radio, dynamic message signs, automated roadway treatment systems, barrier and safeguard systems, cameras, traffic signals, ramp meters, short range communications equipment, security surveillance equipment).
• 10: The field element shall implement configuration commands received from authorized Field Support Equipment.
• 2: The field element shall send operational status of connected field equipment to the maintenance center.
• 3: The field element shall send collected fault data to the maintenance center for repair.
• 4: The field element shall include a local interface that provides operational status and fault data for connected field equipment to field personnel.
• 5: The field element shall include a local interface that allows field personnel to command diagnostic tests on connected field equipment.
• 6: The field element shall provide operational status information to the Service Monitor.
• 7: The field element shall implement configuration commands received from an authorized Center.
• 8: The field element shall implement operational status commands received from an authorized Center.
• 9: The field element shall implement operational status commands received from authorized Field Support Equipment.


• City of Sarasota CAV Field Equipment - RSE Intersection Management
• 1: The field element shall communicate with passing vehicles to provide the current signal phase and timing information for all lanes and approaches at a signalized intersection.
• 8: The field element shall send a signal service request to the traffic signal controller when its application status determines the need for a signal change.


• City of Sarasota CAV Field Equipment - RSE Intersection Safety
• 2: The roadway equipment shall communicate with approaching vehicles to alert and warn drivers of potential stop sign, red light, and non-motorized user crossing conflicts or violations.
• 3: The roadway equipment shall collect vehicle path information sent by a vehicle.
• 5: The roadway equipment shall send to Connected Vehicles intersection signal timing information in order for the vehicle to determine if it will safely cross the intersection given its current speed and location.
• 6: The roadway equipment shall send to connected vehicles a warning if an intersection violation appears to be imminent.
• 7: The field element shall collect current conflict monitor and intersection control data from the traffic signal controller.


• City of Sarasota CAV Field Equipment - RSE Map Management
• 1: The field element shall collect broadcasted vehicle location and motion information.
• 10: The field element shall provide intersection geometry updates to proximate Vehicles.
• 2: The field element shall aggregate vehicle location data.
• 6: The field element shall provide basemap update information to proximate Vehicles.
• 9: The field element shall provide basemap updates to proximate Vehicles.


• City of Sarasota CAV Field Equipment - RSE Situation Monitoring
• 3: The field element shall provide data collection parameters to vehicles.
• 5: The field element shall provide collected vehicle situation and local sensor data to data distribution centers.


• City of Sarasota CAV Field Equipment - RSE Traffic Monitoring
• 1: The field element shall communicate with on-board equipment on passing vehicles to collect current vehicle position, speed, and heading and a record of previous events (e.g., starts and stops, link travel times) that can be used to determine current traffic conditions.


• City of Sarasota TMC - Center Connected Vehicle Infrastructure Management
• 1: The Center shall be capable of monitoring the operational status of Connected Vehicle Roadside Equipment applications.
• 2: The Center shall be capable of modifying the operational status of Connected Vehicle Roadside Equipment applications.
• 4: The Center shall be capable of modifying the operational status of Connected Vehicle Roadside Equipment.


• City of Sarasota TMC - Center Map Management
• 1: The Center shall collect updates to basemaps from Map Update Systems .
• 2: The Center shall collect updates to intersection geometry from Map Update Systems.
• 3: The Center shall provide roadway geometry updates to Map Update Systems.
• 4: The Center shall provide intersection geometry updates to Map Update Systems.


• City of Sarasota TMC - ITS Management Support
• 1: The ITS Object shall provide its network address, service offerings and metrics characterizing those services to vehicles within the broadcast range of the ITS Object's short range communications equipment.
• 2: The ITS Object shall provide its network address, service offerings and metrics characterizing those services to the Object Registration and Discovery Service.
• 3: The ITS Object shall obtain network addresses from the Object Registration and Discovery Service.
• 4: The ITS Object shall make network address information available to onboard applications.
• 5: The ITS Object shall provide its configuration and operational status information to the Service Monitor
• 6: The ITS Object shall acquire regulatory information relevant to the operation of the ITS Object from the CCMS.


• City of Sarasota 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.
• 7: The center shall remotely control devices to detect traffic.


• City of Sarasota TMC - TMC Intersection Safety
• 1: The center shall provide current intersection safety status information.
• 3: The center shall provide warnings to pedestrians or bicyclists when vehicles are infringing on a cross walk or other mixed use path crossing.
• 5: The field element shall be capable of configuring roadside equipment to perform the collection and transmission of information to support intersection safety.


• City of Sarasota 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.


• City of Sarasota TMC - TMC Signal Control
• 1: The center shall remotely control traffic signal controllers.
• 15: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements at or near signalized intersections.
• 4: The center shall collect traffic signal controller fault data from the field.
• 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.


• City of Sarasota TMC - TMC Situation Data Management
• 1: The center shall collect traffic probe data from vehicles via roadside field equipment.


• City of Sarasota Traffic Control 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 Sarasota Traffic Control Equipment - Roadway Mixed Use Crossing Safety
• 3: The field element shall inform pedestrians and bicyclists of the status of the intersection including the amount of time left for crossing the intersection.


• City of Sarasota Traffic Control Equipment - Roadway Signal Control
• 1: The field element shall control traffic signals under center control.
• 14: The field element shall provide data to the Connected Vehicle Roadside Equipment.
• 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.


• FDOT SCMS - CCMS Authorization
• 1: The Center shall generate credential identifiers using facilities that are independently owned and operated from one another.


• FDOT SCMS - CCMS Misbehavior Reporting and Action
• 1: The Center shall accept misbehavior reports from ITS Objects.


• FDOT SCMS - CCMS Provisioning
• 1: The Center shall provide security and regulatory policy information to ITS Objects.


• FDOT SCMS - CCMS Revocation
• 1: The Center shall place certificates on the revocation list of those certificates that are associated with misbehavior.


• FDOT SCMS - ITS Security Support
• 1: The ITS Object shall obtain security policy information from the Cooperative Intelligent Transportation System Credentials Management System (CCMS).


• Private Travelers Personal Computing Devices - Personal Location Determination
• 2: The Personal device shall obtain time and position data from its local location and time data source.


• Private Travelers Personal Computing Devices - Personal Pedestrian Safety
• 1: The personal information device shall provide the current location (latitude, longitude, and elevation) of the non-motorized travelers.


• Vehicles - Vehicle Basic Safety Communication
• 1: The vehicle shall collect location and motion data from the vehicle platform.
• 2: The vehicle shall provide its location with lane-level accuracy to on-board applications.
• 6: The vehicle shall exchange location and motion information with roadside equipment and nearby vehicles.


• Vehicles - Vehicle Control Automation
• 1: The vehicle shall monitor the area behind and in front of the vehicle to determine the proximity of other objects to the vehicle.
• 2: The vehicle shall monitor the area to the sides of the vehicle to determine the proximity of other objects to the vehicle to determine if a control adjustment is needed.


• Vehicles - Vehicle Control Warning
• 10: The Vehicle shall provide its location with lane-level accuracy to on-board warning applications.
• 2: The vehicle shall evaluate the likelihood of a collision between two vehicles or a vehicle and a stationary object to warn the driver, based on the proximity of other objects to the vehicle, roadway characteristics, and the current speed and direction of the vehicle.


• Vehicles - Vehicle Intersection Warning
• 1: Vehicle shall provide vehicle path information to identify if vehicle is performing an unpermitted movement at an intersection such as a stop sign violation or running a red light.
• 3: The vehicle shall receive intersection signal timing information in order for the vehicle to determine if it will safely cross the intersection given its current location and speed.


• Vehicles - Vehicle Situation Data Monitoring
• 1: The Vehicle shall obtain data collection parameters from Connected Vehicle Roadside Equipment.
• 5: The Vehicle shall provide data to Centers in accordance with data collection parameters provided by Centers/Connected Vehicle Roadside Equipment.
• 6: The Vehicle shall provide data to Connected Vehicle Roadside Equipment. in accordance with data collection parameters provided by Centers/Connected Vehicle Roadside Equipment.

Standards:

• (None-Data) - Secure Internet (ITS)
• TUF - Secure Internet (ITS)
• US: Misbehavior reporting - Secure Internet (ITS)
• US: NTCIP Roadside Unit - SNMPv3/TLS
• US: NTCIP Signal Priority - SNMPv3/TLS
• US: NTCIP Signal System Masters - SNMPv3/TLS
• US: NTCIP Traffic Signal - SNMPv3/TLS
• US: NTCIP Transportation Sensors - SNMPv3/TLS
• US: SAE Basic Safety Messages - WAVE WSMP
• US: SAE Lane-Level Mapping - Secure Internet (ITS)
• US: SAE LTE-V2X BSM - LTE-V2X WSMP
• US: SAE Other J2735 - Local Unicast Wireless (1609.2)
• US: SAE Other J2735 - LTE-V2X IPv6
• US: SAE Other J2735 - LTE-V2X WSMP
• US: SAE Other J2735 - Secure Internet (ITS)
• US: SAE Signal Control Messages - LTE-V2X WSMP
• US: SAE Signal Control Messages - WAVE WSMP
• US: SAE VRU Messages - WAVE WSMP
• US: Security Credentials - Secure Internet (ITS)

Project Operational Concepts:

Roles and Responsibilities

• Travelers
• Enable bluetooth device.
• Load intersection safety application on mobile device.


• City of Sarasota
• Operate traffic network safely and efficiently with utililization of Connected Vehilcle technologies.
• Operate traffic signal systems for the City of Sarasota.
• Provide in-vehicle safety information using roadside equipment.
• Provides security for CAV communications between vehicles and the roadside.


• FDOT CO
• Provide CAV secure infrastructure for vehicle safety.
• Provide security and credentials management support and certificates for connected vehicle operations.

Last Updated 5/25/2023