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:
Interconnect and Flow
Diagrams
Project Service Packages:
Project Information Flows:
Project Functional Requirements (Element - Functional Object):
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CAV-ITS Map Update System - Center Map Management
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4: The Center shall provide intersection geometry updates to Map Update Systems.
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CAV-ITS Map Update System - Map Management
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18: The Center shall provide intersection geometry updates to Connected Vehicle Roadside Equipment.
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5: The Center shall provide basemap updates to other Centers.
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FDOT SCMS - CCMS Authorization
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1: The Center shall generate credential identifiers using facilities that are independently owned and operated from one another.
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3: The Center shall verify information received in pseudonym requests.
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6: The Center shall provide Vehicle pseudonymous credentials in response to valid Vehicle pseudonym requests.
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9: The Center shall provide Connected Vehicle Roadside Equipment pseudonymous credentials in response to valid Connected Vehicle Roadside Equipment pseudonym requests.
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FDOT SCMS - CCMS Enrollment
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1: The Center shall provide enrollment credentials in response to valid enrollment requests.
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2: The Center shall coordinate the distribution of enrollment credentials with other Centers.
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3: The Center shall verify information received in enrollment requests.
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FDOT SCMS - CCMS Misbehavior Reporting and Action
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1: The Center shall accept misbehavior reports from ITS Objects.
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2: The Center shall analyze misbehavior reports.
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FDOT SCMS - CCMS Provisioning
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1: The Center shall provide security and regulatory policy information to ITS Objects.
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2: The Center shall provide its credentials information to ITS Objects.
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3: The Center shall provide the operator with mechanisms for monitoring the status of all credential-granting activities without compromising any other requirement.
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FDOT SCMS - CCMS Revocation
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1: The Center shall place certificates on the revocation list of those certificates that are associated with misbehavior.
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2: The Center shall provide to ITS Objects a list of credentials whose trust as been revoked.
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Miami-Dade CAV Field Equipment - ITS Security Support
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1: The ITS Object shall obtain security policy information from the Cooperative Intelligent Transportation System Credentials Management System (CCMS).
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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.
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11: The ITS Object shall request pseudonymous credentials from the CCMS.
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12: The ITS Object shall provide messages (that it receives) that indicate potential misbehavior/malfunction to the CCMS.
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13: The ITS Object shall request permissions from the Center that manages permissions requests.
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2: The ITS Object shall request enrollment credentials from the CCMS.
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3: The ITS Object shall obtain the CCMS' trust credentials.
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4: The ITS Object shall provide a mechanism for on-board applications to digitally sign messages using keys secured by the CCMS' trust authority.
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5: The ITS Object shall provide a mechanism for on-board applications to authenticate messages secured by the CCMS' trust authority.
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6: The ITS Object shall provide a mechanism for on-board applications to encrypt messages using keys secured by the CCMS' trust authority.
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7: The ITS Object shall provide a mechanism for on-board applications to decrypt messages using keys secured by the CCMS' trust authority.
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8: The ITS Object shall obtain a list of revoked credentials from the CCMS.
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Miami-Dade CAV Field Equipment - RSE Intersection Safety
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1: The roadway equipment shall collect the current location (latitude, longitude, and elevation) from personal information devices.
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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.
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3: The roadway equipment shall collect vehicle path information sent by a vehicle.
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4: The roadway equipment shall provide current crossing status including permission to cross, crossing time remaining.
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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.
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6: The roadway equipment shall send to connected vehicles a warning if an intersection violation appears to be imminent.
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7: The field element shall collect current conflict monitor and intersection control data from the traffic signal controller.
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Miami-Dade CAV Field Equipment - RSE Map Management
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1: The field element shall collect broadcasted vehicle location and motion information.
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10: The field element shall provide intersection geometry updates to proximate Vehicles.
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5: The field element shall provide intersection geometry update information to proximate Vehicles.
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6: The field element shall provide basemap update information to proximate Vehicles.
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9: The field element shall provide basemap updates to proximate Vehicles.
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Miami-Dade Traffic Control Center - Center Map Management
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1: The Center shall collect updates to basemaps from Map Update Systems .
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2: The Center shall collect updates to intersection geometry from Map Update Systems.
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4: The Center shall provide intersection geometry updates to Map Update Systems.
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Miami-Dade Traffic Control Center - TMC Intersection Safety
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1: The center shall provide current intersection safety status information.
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2: The center shall provide warnings to drivers when non-motorized users are occupying a cross walk or other mixed use path crossing.
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Miami-Dade Traffic Control Center - TMC Signal Control
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1: The center shall remotely control traffic signal controllers.
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3: The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
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6: The center shall implement control plans to coordinate signalized intersections based on data from sensors.
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Miami-Dade Traffic Control Equipment - Roadway Signal Control
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2: The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing.
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4: The field element shall report the current signal control information to the center.
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5: The field element shall report current preemption status to the center.
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6: The field element shall return traffic signal controller operational status to the center.
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7: The field element shall return traffic signal controller fault data to the center.
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Miami-Dade Traffic Control Equipment - RSE Intersection Safety
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1: The roadway equipment shall collect the current location (latitude, longitude, and elevation) from personal information devices.
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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.
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Vehicles - ITS Security Support
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1: The ITS Object shall obtain security policy information from the Cooperative Intelligent Transportation System Credentials Management System (CCMS).
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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.
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11: The ITS Object shall request pseudonymous credentials from the CCMS.
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12: The ITS Object shall provide messages (that it receives) that indicate potential misbehavior/malfunction to the CCMS.
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13: The ITS Object shall request permissions from the Center that manages permissions requests.
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2: The ITS Object shall request enrollment credentials from the CCMS.
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3: The ITS Object shall obtain the CCMS' trust credentials.
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4: The ITS Object shall provide a mechanism for on-board applications to digitally sign messages using keys secured by the CCMS' trust authority.
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5: The ITS Object shall provide a mechanism for on-board applications to authenticate messages secured by the CCMS' trust authority.
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6: The ITS Object shall provide a mechanism for on-board applications to encrypt messages using keys secured by the CCMS' trust authority.
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7: The ITS Object shall provide a mechanism for on-board applications to decrypt messages using keys secured by the CCMS' trust authority.
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8: The ITS Object shall obtain a list of revoked credentials from the CCMS.
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9: The ITS Object shall make the list of revoked credentials available to on-board applications.
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Vehicles - Vehicle Control Automation
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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.
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5: The Vehicle shall provide its location with lane-level accuracy to on-board control automation applications.
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Vehicles - Vehicle Control Warning
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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.
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Vehicles - Vehicle Intersection Warning
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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.
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2: Vehicle shall provide data describing the vehicle's location in three dimensions, heading, speed, acceleration, braking status, and size.
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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.
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Vehicles - Vehicle Map Management
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1: The Vehicle shall make basemap, roadway geometry, intersection geometry and parking facility geometry information available to other onboard vehicle applications.
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10: The Vehicle shall obtain intersection geometry information from Centers.
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4: The Vehicle shall obtain intersection geometry update information from proximate Connected Vehicle Roadside Equipment.
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7: The Vehicle shall obtain basemap update information from proximate Connected Vehicle Roadside Equipment.
Standards:
Project Operational Concepts:
Last Updated 4/16/2024