Gainesville Connected Vehicle Arterial Travel Time System

Project Description: This project will provide arterial travel times provided by connected vehicles.

Project Status: Planned

Project Stakeholders:

• FDOT CO
• Gainesville Traffic Operations Division
• Travelers

Project Service Packages:

• TM02: Vehicle-Based Traffic Surveillance (Gainesville Connected Vehicle Travel Time)
• TM06: Traffic Information Dissemination (Gainesville Connected Vehicle Travel Time)
• SU08: Security and Credentials Management (Gainesville Connected Vehicle Arterial Travel Time System)
• SU09: Device Certification and Enrollment (Gainesville Connected Vehicle Arterial Travel Time System)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
device enrollment information	City of Gainesville CAV Roadside Equipment	FDOT SCMS	Planned
device enrollment information	Vehicles	FDOT SCMS	Planned
driver information_ud_cvria	City of Gainesville Field Equipment	Vehicles	Planned
enrollment credentials	FDOT SCMS	City of Gainesville CAV Roadside Equipment	Planned
enrollment credentials	FDOT SCMS	Vehicles	Planned
misbehavior report	Vehicles	FDOT SCMS	Planned
roadway advisory radio data	Gainesville Smart Traffic TMC	City of Gainesville Field Equipment	Planned
roadway advisory radio status	City of Gainesville Field Equipment	Gainesville Smart Traffic TMC	Planned
roadway dynamic signage data	Gainesville Smart Traffic TMC	City of Gainesville Field Equipment	Planned
roadway dynamic signage status	City of Gainesville Field Equipment	Gainesville Smart Traffic TMC	Planned
security credential revocations	FDOT SCMS	Vehicles	Planned
security credentials	FDOT SCMS	Vehicles	Planned
security policy and networking information	FDOT SCMS	City of Gainesville CAV Roadside Equipment	Planned
security policy and networking information	FDOT SCMS	Vehicles	Planned
situation data collection parameters	Gainesville Smart Traffic TMC	City of Gainesville CAV Roadside Equipment	Planned
traffic monitoring application info	Gainesville Smart Traffic TMC	City of Gainesville CAV Roadside Equipment	Planned
traffic monitoring application status	City of Gainesville CAV Roadside Equipment	Gainesville Smart Traffic TMC	Planned
traffic situation data	City of Gainesville CAV Roadside Equipment	Gainesville Smart Traffic TMC	Planned
vehicle location and motion for surveillance	Vehicles	City of Gainesville CAV Roadside Equipment	Planned
vehicle situation data	Vehicles	City of Gainesville CAV Roadside Equipment	Planned
vehicle situation data parameters	City of Gainesville CAV Roadside Equipment	Vehicles	Planned

Project Functional Requirements (Element - Functional Object):

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


• City of Gainesville CAV Roadside Equipment - ITS Security Support
• 1: The ITS Object shall obtain security policy information from the Cooperative Intelligent Transportation System Credentials Management System (CCMS).
• 2: The ITS Object shall request enrollment credentials from the CCMS.


• City of Gainesville CAV Roadside Equipment - RSE Situation Monitoring
• 1: The field element shall collect traffic-related data including snapshots of measured speed and heading and events including starts and stops, speed changes, and other vehicle control from vehicles.
• 2: The field element shall provide vehicle situation data to a center for archival.
• 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 Gainesville CAV Roadside 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.
• 2: The field element shall aggregate and forward collected probe information to the center.
• 3: The field element shall aggregate and forward collected probe information to other field elements.


• City of Gainesville Field Equipment - Roadway Traffic Information Dissemination
• 1: The field element shall include dynamic message signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. vehicle restrictions, or lane open/close).
• 3: The field element shall provide operational status for the driver information systems equipment (DMS, HAR, etc.) to the center.
• 4: The field element shall provide fault data for the driver information systems equipment (DMS, HAR, etc.) to the center for repair.
• 5: The field element shall provide dynamic message sign information to roadside equipment for transmission to connected vehicles to support in-vehicle signing.
• 6: The field element shall include devices that provide data and status information to other field element devices without center control.
• 7: The field element shall include devices that receive configuration data from other field element devices, without center control.


• FDOT SCMS - CCMS Authorization
• 1: The Center shall generate credential identifiers using facilities that are independently owned and operated from one another.
• 2: The Center shall assign two or more non-unique identifiers, that when combined are unique, to each credential it distributes.
• 3: The Center shall verify information received in pseudonym requests.
• 4: The Center shall coordinate the distribution of credentials with other Centers.
• 5: The Center shall store credential identifiers using facilities that are independently owned and operated from one another.
• 6: The Center shall provide Vehicle pseudonymous credentials in response to valid Vehicle pseudonym requests.
• 8: The Center shall provide Center pseudonymous credentials in response to valid Center pseudonym requests.
• 9: The Center shall provide Connected Vehicle Roadside Equipment pseudonymous credentials in response to valid Connected Vehicle Roadside Equipment pseudonym requests.
• 10: The Center shall accept user permission information from Centers authorized to provide that information.
• 11: The Center shall acquire identifiers relevant to ITS services from the relevant registry of such identifiers


• FDOT SCMS - CCMS Enrollment
• 1: The Center shall provide enrollment credentials in response to valid enrollment requests.
• 2: The Center shall coordinate the distribution of enrollment credentials with other Centers.
• 3: The Center shall verify information received in enrollment requests.


• FDOT SCMS - CCMS Misbehavior Reporting and Action
• 1: The Center shall accept misbehavior reports from ITS Objects.
• 2: The Center shall analyze misbehavior reports.
• 3: The Center shall coordinate misbehavior analysis with other Centers.


• FDOT SCMS - CCMS Provisioning
• 1: The Center shall provide security and regulatory policy information to ITS Objects.
• 2: The Center shall provide its credentials information to ITS Objects.
• 3: The Center shall provide the operator with mechanisms for monitoring the status of all credential-granting activities without compromising any other requirement.


• FDOT SCMS - CCMS Revocation
• 1: The Center shall place certificates on the revocation list of those certificates that are associated with misbehavior.
• 2: The Center shall provide to ITS Objects a list of credentials whose trust as been revoked.


• Gainesville Smart Traffic TMC - TMC Situation Data Management
• 1: The center shall collect traffic probe data from vehicles via roadside field equipment.
• 5: The center shall collect operational status for the roadside probe data collection equipment.
• 6: The center shall collect fault data for the roadside probe data collection equipment for repair.


• Gainesville Smart Traffic TMC - TMC Traffic Information Dissemination
• 1: The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
• 3: The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).
• 4: The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.
• 5: The center shall retrieve locally stored traffic information, including current and forecasted traffic information, road and weather conditions, traffic incident information, information on diversions and alternate routes, closures, and special traffic restrictions (lane/shoulder use, weight restrictions, width restrictions, HOV requirements), and the definition of the road network itself.


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


• Vehicles - Vehicle Basic Safety Communication
• 2: The vehicle shall provide its location with lane-level accuracy to on-board applications.
• 3: The vehicle shall provide its location with road-level accuracy to on-board applications.


• Vehicles - Vehicle Situation Data Monitoring
• 1: The Vehicle shall obtain data collection parameters from Connected Vehicle Roadside Equipment.
• 2: The Vehicle shall collect data collection parameters from Centers.
• 4: The vehicle shall provide traffic-related data including snapshots of measured speed and heading and events including starts and stops, speed changes, and other vehicle control from vehicle.
• 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)
• US: Device enrollment - Secure Internet (ITS)
• US: Misbehavior reporting - Secure Internet (ITS)
• US: NTCIP Message Sign - SNMPv3/TLS
• US: NTCIP Transportation Sensors - SNMPv3/TLS
• US: SAE Basic Safety Messages - WAVE WSMP
• US: SAE Other J2735 - WAVE TCP
• US: SAE Other J2735 - WAVE WSMP
• US: Security Credentials - Secure Internet (ITS)

Project Operational Concepts:

Roles and Responsibilities

• FDOT CO
• Enables trusted communications between mobile devices and other mobile devices, roadside devices, and centers and protect data they handle from unauthorized access.
• Supports connected and autonomous vehicle operations.
• The SCMS provides secure certificates to users within the CAV environment.


• Gainesville Traffic Operations Division
• Collect and process travel time information.
• Provide travel time information to travelers.