Miami-Dade SPAT Upgrade

Project Description: This project would upgrade Miami–Dade traffic signals to allows Signal Phase and Timing (SPAT) capability with connected vehicles.

Project Status: Planned

Project Stakeholders:

• FDOT CO
• Miami-Dade County Department of Transportation and Public Works
• Travelers

Project Service Packages:

• VS13: Intersection Safety Warning and Collision Avoidance (Miami-Dade SPaT Upgrade)
• SU04: Map Management (Miami-Dade SPaT Upgrade)
• SU08: Security and Credentials Management (Miami-Dade SPaT Upgrade)
• SU09: Device Certification and Enrollment (Miami-Dade SPaT Upgrade)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
conflict monitor status	Miami-Dade Traffic Control Equipment	Miami-Dade CAV Field Equipment	Planned
device enrollment information	Miami-Dade CAV Field Equipment	FDOT SCMS	Planned
enrollment credentials	FDOT SCMS	Miami-Dade CAV Field Equipment	Planned
intersection control status	Miami-Dade Traffic Control Equipment	Miami-Dade CAV Field Equipment	Planned
intersection geometry	CAV-ITS Map Update System	Miami-Dade CAV Field Equipment	Planned
intersection geometry	CAV-ITS Map Update System	Miami-Dade Traffic Control Center	Planned
intersection safety application info	Miami-Dade Traffic Control Center	Miami-Dade CAV Field Equipment	Planned
intersection safety application status	Miami-Dade CAV Field Equipment	Miami-Dade Traffic Control Center	Planned
intersection status monitoring	Miami-Dade CAV Field Equipment	Miami-Dade Traffic Control Equipment	Planned
map update notification	Miami-Dade Traffic Control Center	CAV-ITS Map Update System	Planned
map updates	CAV-ITS Map Update System	Miami-Dade CAV Field Equipment	Planned
map updates	CAV-ITS Map Update System	Miami-Dade Traffic Control Center	Planned
misbehavior report	Miami-Dade CAV Field Equipment	FDOT SCMS	Planned
security credential revocations	FDOT SCMS	Miami-Dade CAV Field Equipment	Planned
security credentials	FDOT SCMS	Miami-Dade CAV Field Equipment	Planned
security policy and networking information	FDOT SCMS	Miami-Dade CAV Field Equipment	Planned
signal control commands	Miami-Dade Traffic Control Center	Miami-Dade Traffic Control Equipment	Planned
signal control status	Miami-Dade Traffic Control Equipment	Miami-Dade Traffic Control Center	Planned
vehicle location and motion	Vehicles	Miami-Dade CAV Field Equipment	Planned

Project Functional Requirements (Element - Functional Object):

• CAV-ITS Map Update System - Center Map Management
• 4: The Center shall provide intersection geometry updates to Map Update Systems.


• CAV-ITS Map Update System - Map Management
• 18: The Center shall provide intersection geometry updates to Connected Vehicle Roadside Equipment.
• 5: The Center shall provide basemap updates to other Centers.


• FDOT SCMS - CCMS Authorization
• 1: The Center shall generate credential identifiers using facilities that are independently owned and operated from one another.
• 3: The Center shall verify information received in pseudonym requests.
• 6: The Center shall provide Vehicle pseudonymous credentials in response to valid Vehicle pseudonym requests.
• 9: The Center shall provide Connected Vehicle Roadside Equipment pseudonymous credentials in response to valid Connected Vehicle Roadside Equipment pseudonym requests.


• 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.


• 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.


• Miami-Dade 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.


• Miami-Dade CAV Field Equipment - RSE Intersection Safety
• 1: The roadway equipment shall collect the current location (latitude, longitude, and elevation) from personal information devices.
• 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.
• 4: The roadway equipment shall provide current crossing status including permission to cross, crossing time remaining.
• 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.


• Miami-Dade 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.
• 5: The field element shall provide intersection geometry update information to proximate Vehicles.
• 6: The field element shall provide basemap update information to proximate Vehicles.
• 9: The field element shall provide basemap updates to proximate Vehicles.


• Miami-Dade Traffic Control Center - 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.
• 4: The Center shall provide intersection geometry updates to Map Update Systems.


• Miami-Dade Traffic Control Center - TMC Intersection Safety
• 1: The center shall provide current intersection safety status information.
• 2: The center shall provide warnings to drivers when non-motorized users are occupying a cross walk or other mixed use path crossing.


• Miami-Dade Traffic Control Center - TMC Signal Control
• 1: The center shall remotely control traffic signal controllers.
• 3: The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
• 6: The center shall implement control plans to coordinate signalized intersections based on data from sensors.


• Miami-Dade Traffic Control Equipment - Roadway Signal Control
• 2: The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing.
• 4: The field element shall report the current signal control information to the center.
• 5: The field element shall report current preemption status 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.


• Miami-Dade Traffic Control Equipment - RSE Intersection Safety
• 1: The roadway equipment shall collect the current location (latitude, longitude, and elevation) from personal information devices.
• 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.


• Vehicles - 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.


• Vehicles - Vehicle Control Automation
• 10: The vehicle shall present vehicle control information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner.
• 5: The Vehicle shall provide its location with lane-level accuracy to on-board control automation applications.


• Vehicles - Vehicle Control Warning
• 3: The vehicle shall provide position warnings to the driver when an object gets close enough to the vehicle to become a hazard if no action is taken by the driver.


• 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.
• 2: Vehicle shall provide data describing the vehicle's location in three dimensions, heading, speed, acceleration, braking status, and size.
• 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 Map Management
• 1: The Vehicle shall make basemap, roadway geometry, intersection geometry and parking facility geometry information available to other onboard vehicle applications.
• 10: The Vehicle shall obtain intersection geometry information from Centers.
• 4: The Vehicle shall obtain intersection geometry update information from proximate Connected Vehicle Roadside Equipment.
• 7: The Vehicle shall obtain basemap update information from proximate Connected Vehicle Roadside Equipment.

Standards:

• (None-Data) - Secure Internet (ITS)
• US: Device enrollment - Secure Internet (ITS)
• US: Misbehavior reporting - Secure Internet (ITS)
• US: NTCIP Signal System Masters - SNMPv3/TLS
• US: NTCIP Traffic Signal - SNMPv3/TLS
• US: SAE Basic Safety Messages - WAVE WSMP
• US: SAE Other J2735 - Secure Internet (ITS)
• US: SAE Signal Control Messages - WAVE WSMP
• US: Security Credentials - Secure Internet (ITS)

Project Operational Concepts:

Roles and Responsibilities

• Miami-Dade County Department of Transportation and Public Works
• Adjust signal timing patterns in response to incidents.
• Collect traffic and incident information, and provide it to the media and private travelers.
• Collect traffic data from sensors that are part of the traffic signal system.
• Coordinate and share traveler information with all other traveler information providers in the region.
• Coordinate emergency plans with county EOCs, and provide emergency transit services for evacuations, fires, and disasters, including re-entry.
• Coordinate emergency plans, and incident responses and resources with the county EOC/warning points.
• Coordinate evacuation and re-entry plans with the county EOC/warning point.
• Coordinate highway-rail intersection (HRI) signal adjustments.
• Coordinate incident response for incidents on or adjacent to county-owned roadways with public works departments, public safety agencies, and EOCs in surrounding counties and municipalities, including response for scheduled events.
• Coordinate maintenance and construction activities with other county and city maintenance, and the FDOT District 6 construction and maintenance section.
• Coordinate maintenance or construction requests from RTMCs.
• Coordinate maintenance resource response to incidents in the municipality with local public safety agencies.
• Coordinate maintenance resource response to incidents on county-owned roadways with county and local public safety agencies.
• Coordinate maintenance resources for incidents with the FDOT District 6 maintenance and construction operations, and other county and city maintenance and construction operations outside the District.
• Coordinate transit fare payment with other regional agencies.
• Coordinate transit information with the Miami-Dade Traffic Control Center.
• Coordinate transit schedules with other local transit agencies, particularly for transit connections at transit transfer points.
• Coordinate transit security incidents with the Miami-Dade County Sheriff’s Office.
• Coordinate with multimodal transportation agencies, including airports, commuter rail, and heavy rail.
• Coordinate with the Miami-Dade County Traffic Control Center for traffic signal priority.
• Coordinate with the Miami-Dade transit control center.
• Distribute maintenance and construction work plan information, and asset restrictions to regional traffic agencies, regional transit providers, regional emergency services, the media, private rail operations, and multimodal service providers.
• Interconnect with signal systems in adjacent jurisdictions in the future.
• Manage work zones for all county and city maintenance and construction activities, and monitor work zone safety with county and city field equipment and vehicles.
• Operate county and local drawbridge systems in conjunction with traffic signals.
• Operate traffic signal systems on county-owned arterials, as well as some municipal arterials.
• Perform maintenance for regional city and county ITS field equipment.
• Perform network surveillance for incident detection and verification, and send traffic/incident information and traffic images to local and county public safety agencies and EOCs.
• Provide a demand responsive bus transit plan to users/travelers using the MDTA Web site.
• Provide automated maintenance status information to county and city roadway maintenance and construction operations, and county and local equipment repair facilities from maintenance vehicles.
• Provide automated transit maintenance scheduling using automated vehicle condition reports on all MDTA vehicles in the future.
• Provide fixed-route and paratransit bus services; peoplemover services; and rail transit services for Miami-Dade County.
• Provide incident information to other traffic management and public safety agencies.
• Provide incident information to travelers on county-owned roadways using traffic information devices (e.g., DMS and HAR units), local ISPs, and Web sites.
• Provide incident information to travelers on municipal roadways using traffic information devices (e.g., DMS units), local ISPs, and Web sites.
• Provide maintenance and construction information to regional traffic operations and the traveling public using portable DMS equipment.
• Provide maintenance and construction information to the traveling public using roadside equipment (e.g., DMS and HAR devices) and traveler information systems.
• Provide maintenance resources in response to incidents on county-operated arterials.
• Provide maintenance resources in response to incidents on municipal arterials.
• Provide operator instructions and receive schedule performance data from MDTA vehicles while in service.
• Provide signal preemption for emergency vehicles.
• Provide signal priority for transit vehicles.
• Provide traffic and road network information to local transit agencies, including the MDTA.
• Provide traffic information to travelers using Miami-Dade County DMS equipment.
• Provide traffic information to travelers using the county public information system, private companies, Florida 511, and the media.
• Provide transit passenger electronic fare payment on all MDTA vehicles and include smart card fare coordination with other regional transit agencies.
• Provide transit schedule and fare information via the Miami-Dade Transit Customer Information System.
• Receive AVL information from county and city public works vehicles.
• Receive maintenance resource requests for incident response from county fire/EMS/sheriff, local police/fire/EMS, the FHP, 911 emergency call centers, and county EOCs.
• Receive maintenance resource requests for incident response from the regional county and city traffic management systems.
• Receive road weather information from field equipment.
• Track and evaluate schedule performance on all MDTA vehicles.


• Travelers
• Install and operate invehicle CAV equipment.


• FDOT CO
• Provide SCMS services.