US 41 Transit Signal Prioritization Pilot

Project Description: This pilot demonstration is for testing Transit Signal Priority(TSP) using new technology in an effort to improve speed, efficiency and reliability of the existing fixed–route transit service (Route 99) operated jointly by the Manatee County Area Transit (MCAT) and Sarasota County Area Transit (SCAT) on US 41.

Project Status: Planned

Project Stakeholders:

• FDOT CO
• Manatee County Area Traffic Agencies
• Manatee County Public Works Department
• Manatee County Public Works, Transit Division
• Sarasota County Area Transit
• Sarasota County Public Works Department

Project Service Packages:

• PT09: Transit Signal Priority (US 41 Transit Signal Prioritization Pilot (Sarasota County))
• PT09: Transit Signal Priority (US 41 Transit Signal Prioritization Pilot (Manatee County)))
• SU04: Map Management (US 41 Transit Signal Prioritization Pilot)
• SU08: Security and Credentials Management (US 41 Transit Signal Prioritization Pilot)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
intersection control status	Manatee County Field Equipment	Manatee County CAV Field Equipment	Planned
intersection control status	Sarasota County Field Equipment	Sarasota County CAV Field Equipment	Planned
intersection geometry	CAV-ITS Map Update System	Manatee County CAV Field Equipment	Planned
intersection geometry	CAV-ITS Map Update System	Manatee-Sarasota Regional Traffic Management Center	Planned
intersection geometry	CAV-ITS Map Update System	Sarasota County CAV Field Equipment	Planned
intersection geometry	Manatee County CAV Field Equipment	Manatee County MCAT Fixed Route Transit Vehicles	Planned
intersection geometry	Sarasota County CAV Field Equipment	Sarasota County SCAT Fixed Route Transit Vehicles	Planned
intersection management application info	Manatee-Sarasota Regional Traffic Management Center	Manatee County CAV Field Equipment	Planned
intersection management application info	Manatee-Sarasota Regional Traffic Management Center	Sarasota County CAV Field Equipment	Planned
intersection management application status	Manatee County CAV Field Equipment	Manatee-Sarasota Regional Traffic Management Center	Planned
intersection management application status	Sarasota County CAV Field Equipment	Manatee-Sarasota Regional Traffic Management Center	Planned
local signal priority request	Manatee County MCAT Fixed Route Transit Vehicles	Manatee County CAV Field Equipment	Planned
local signal priority request	Manatee County MCAT Fixed Route Transit Vehicles	Manatee County Field Equipment	Planned
local signal priority request	Sarasota County SCAT Fixed Route Transit Vehicles	Sarasota County CAV Field Equipment	Planned
local signal priority request	Sarasota County SCAT Fixed Route Transit Vehicles	Sarasota County Field Equipment	Planned
map update notification	Manatee-Sarasota Regional Traffic Management Center	CAV-ITS Map Update System	Planned
map update notification	Sarasota County SCAT Dispatch	Manatee-Sarasota Regional Traffic Management Center	Planned
map updates	CAV-ITS Map Update System	Manatee County CAV Field Equipment	Planned
map updates	CAV-ITS Map Update System	Manatee-Sarasota Regional Traffic Management Center	Planned
map updates	CAV-ITS Map Update System	Sarasota County CAV Field Equipment	Planned
misbehavior report	Manatee County CAV Field Equipment	FDOT SCMS	Planned
misbehavior report	Manatee County MCAT Fixed Route Transit Vehicles	FDOT SCMS	Planned
misbehavior report	Sarasota County CAV Field Equipment	FDOT SCMS	Planned
misbehavior report	Sarasota County SCAT Fixed Route Transit Vehicles	FDOT SCMS	Planned
right-of-way request notification	Manatee County Field Equipment	Manatee-Sarasota Regional Traffic Management Center	Planned
right-of-way request notification	Sarasota County Field Equipment	Manatee-Sarasota Regional Traffic Management Center	Planned
roadway geometry	CAV-ITS Map Update System	Manatee County CAV Field Equipment	Planned
roadway geometry	CAV-ITS Map Update System	Sarasota County CAV Field Equipment	Planned
security credential revocations	FDOT SCMS	Manatee County CAV Field Equipment	Planned
security credential revocations	FDOT SCMS	Manatee County MCAT Fixed Route Transit Vehicles	Planned
security credential revocations	FDOT SCMS	Sarasota County CAV Field Equipment	Planned
security credential revocations	FDOT SCMS	Sarasota County SCAT Fixed Route Transit Vehicles	Planned
security credentials	FDOT SCMS	Manatee County CAV Field Equipment	Planned
security credentials	FDOT SCMS	Manatee County MCAT Fixed Route Transit Vehicles	Planned
security credentials	FDOT SCMS	Sarasota County CAV Field Equipment	Planned
security credentials	FDOT SCMS	Sarasota County SCAT Fixed Route Transit Vehicles	Planned
security policy and networking information	FDOT SCMS	Manatee County CAV Field Equipment	Planned
security policy and networking information	FDOT SCMS	Manatee County MCAT Fixed Route Transit Vehicles	Planned
security policy and networking information	FDOT SCMS	Sarasota County CAV Field Equipment	Planned
security policy and networking information	FDOT SCMS	Sarasota County SCAT Fixed Route Transit Vehicles	Planned
signal control commands	Manatee-Sarasota Regional Traffic Management Center	Manatee County Field Equipment	Planned
signal control commands	Manatee-Sarasota Regional Traffic Management Center	Sarasota County Field Equipment	Planned
signal control status	Manatee County Field Equipment	Manatee-Sarasota Regional Traffic Management Center	Planned
signal priority service request	Manatee County CAV Field Equipment	Manatee County Field Equipment	Planned
signal priority service request	Sarasota County CAV Field Equipment	Sarasota County Field Equipment	Planned
signal priority status	Manatee County CAV Field Equipment	Manatee County MCAT Fixed Route Transit Vehicles	Planned
signal priority status	Sarasota County CAV Field Equipment	Sarasota County SCAT Fixed Route Transit Vehicles	Planned
traffic control priority request	Manatee County MCAT Dispatch	Manatee-Sarasota Regional Traffic Management Center	Planned
traffic control priority request	Sarasota County SCAT Dispatch	Manatee-Sarasota Regional Traffic Management Center	Planned
traffic control priority status	Manatee-Sarasota Regional Traffic Management Center	Manatee County MCAT Dispatch	Planned
traffic control priority status	Manatee-Sarasota Regional Traffic Management Center	Sarasota County SCAT Dispatch	Planned
transit schedule information	Manatee County MCAT Dispatch	Manatee County MCAT Fixed Route Transit Vehicles	Planned
transit schedule information	Sarasota County SCAT Dispatch	Sarasota County SCAT Fixed Route Transit Vehicles	Planned
transit vehicle schedule performance	Manatee County MCAT Fixed Route Transit Vehicles	Manatee County MCAT Dispatch	Planned
transit vehicle schedule performance	Sarasota County SCAT Fixed Route Transit Vehicles	Sarasota County SCAT Dispatch	Planned
vehicle location data for mapping	Manatee County CAV Field Equipment	CAV-ITS Map Update System	Planned
vehicle location data for mapping	Sarasota County CAV Field Equipment	CAV-ITS Map Update System	Planned

Project Functional Requirements (Element - Functional Object):

• CAV-ITS Map Update System - Map Management
• 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.
• 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.


• 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.


• Manatee County 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.


• Manatee County 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.
• 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.


• Manatee County 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.
• 5: The field element shall receive transit signal priority requests from transit vehicles and forward to the traffic signal controller.
• 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.
• 9: The field element shall collect current signal phase and timing data from the traffic signal controller.


• Manatee County CAV Field Equipment - RSE Map Management
• 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.
• 8: The field element shall provide vehicle location data to Centers.
• 9: The field element shall provide basemap updates to proximate Vehicles.


• Manatee County Field Equipment - Roadway Signal Control
• 1: The field element shall control traffic signals under center control.
• 10: The field element shall receive request for transit vehicle signal priority.
• 6: The field element shall return traffic signal controller operational status to the center.


• Manatee County MCAT Dispatch - Transit Center Priority Management
• 3: The center shall define business rules that govern use of transit vehicle signal priority, communicate these rules to the transit vehicle, and monitor transit vehicle requests for priority at signalized intersections.


• Manatee County MCAT Fixed Route Transit Vehicles - Transit Vehicle Signal Priority
• 1: The transit vehicle shall determine the schedule deviation and estimated times of arrival (ETA) at transit stops.
• 2: The transit vehicle shall send priority requests to traffic signal controllers at intersections, pedestrian crossings, and multimodal crossings on the roads (surface streets) and freeway (ramp controls) network that enable a transit vehicle schedule deviation to be corrected.


• Manatee County MCAT Fixed Route Transit Vehicles - Vehicle Basic Safety Communication
• 2: The vehicle shall provide its location with lane-level accuracy to on-board applications.


• Manatee County MCAT Fixed Route Transit 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.


• Manatee-Sarasota Regional Traffic Management 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.
• 3: The Center shall provide roadway geometry updates to Map Update Systems.
• 4: The Center shall provide intersection geometry updates to Map Update Systems.


• Manatee-Sarasota Regional Traffic Management Center - TMC Multi-Modal Coordination
• 1: The center shall respond to requests from transit management centers for signal priority at one or more intersections along a particular transit route.
• 2: The center shall exchange information with transit management centers including details current transit routes, the level of service on each route, and the progress of individual vehicles along their routes.


• Manatee-Sarasota Regional Traffic Management Center - TMC Signal Control
• 1: The center shall remotely control traffic signal controllers.
• 10: The center shall adjust signal timing in respond to a signal prioritization, signal preemption, pedestrian call, multi-modal crossing activation, or other requests for right-of-way.
• 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.


• Sarasota County 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.


• Sarasota County 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.
• 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.


• Sarasota County 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.
• 5: The field element shall receive transit signal priority requests from transit vehicles and forward to the traffic signal controller.
• 7: The field element shall determine when special vehicles requesting preemption or priority at a signal are authorized to do so based on their digital credentials.
• 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.
• 9: The field element shall collect current signal phase and timing data from the traffic signal controller.


• Sarasota County CAV Field Equipment - RSE Map Management
• 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.
• 8: The field element shall provide vehicle location data to Centers.
• 9: The field element shall provide basemap updates to proximate Vehicles.


• Sarasota County Field Equipment - Roadway Signal Control
• 1: The field element shall control traffic signals under center control.
• 10: The field element shall receive request for transit vehicle signal priority.
• 6: The field element shall return traffic signal controller operational status to the center.


• Sarasota County SCAT Dispatch - Transit Center Priority Management
• 3: The center shall define business rules that govern use of transit vehicle signal priority, communicate these rules to the transit vehicle, and monitor transit vehicle requests for priority at signalized intersections.


• Sarasota County SCAT Fixed Route Transit Vehicles - Transit Vehicle Signal Priority
• 1: The transit vehicle shall determine the schedule deviation and estimated times of arrival (ETA) at transit stops.
• 2: The transit vehicle shall send priority requests to traffic signal controllers at intersections, pedestrian crossings, and multimodal crossings on the roads (surface streets) and freeway (ramp controls) network that enable a transit vehicle schedule deviation to be corrected.


• Sarasota County SCAT Fixed Route Transit Vehicles - Vehicle Basic Safety Communication
• 2: The vehicle shall provide its location with lane-level accuracy to on-board applications.


• Sarasota County SCAT Fixed Route Transit 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.

Standards:

• (None-Data) - Secure Internet (ITS)
• US: GTFS real-time - Secure Wireless Internet (ITS)
• US: GTFS static - Secure Wireless Internet (ITS)
• US: Misbehavior reporting - Secure Internet (ITS)
• US: NTCIP Signal Priority - SNMPv3/TLS
• US: NTCIP Signal System Masters - SNMPv3/TLS
• US: NTCIP Traffic Signal - SNMPv3/TLS
• US: SAE Lane-Level Mapping - Secure Internet (ITS)
• US: SAE Other J2735 - Secure Internet (ITS)
• US: SAE Signal Preemption - LTE-V2X TCP
• US: SAE Signal Preemption - WAVE TCP
• US: Security Credentials - Secure Internet (ITS)
• US: TCIP - Secure Internet (ITS)

Project Operational Concepts:

Roles and Responsibilities

• Manatee County Public Works Department
• Operate traffic network safely and efficiently with utililization of Connected Vehilcle technologies.
• Operate traffic signal systems for Manatee County.
• Provide transit signal priority for MCAT vehicles
• Provides security for CAV communications between vehicles and the roadside.


• Sarasota County Public Works Department
• Operate traffic network safely and efficiently with utililization of Connected Vehilcle technologies.
• Operate traffic signal systems for Sarasota County.
• Operate traffic signal systems.
• Provide transit signal priority to SCATfixed-route vehicles.
• Provides security for CAV communications between vehicles and the roadside.


• Sarasota County Area Transit
• Obtain traffic signal priority from the Sarasota County TSCS using Sarasota County roadside field equipment for SCAT fixed-route transit vehicles.
• Provide fixed-route bus service for Sarasota County and the surrounding area.
• Track and evaluate schedule performance on all SCAT fixed-route and paratransit vehicles.


• Manatee County Public Works, Transit Division
• Obtain traffic signal priority from Manatee County's TSCS using county roadside field equipment for MCAT fixed-route transit vehicles.
• Provide fixed-route bus service for Manatee County and the surrounding area.
• Track and evaluate schedule performance on all MCAT fixed-route and paratransit vehicles.


• Manatee County Area Traffic Agencies
• Coordinate traffic information and traffic control with county and local traffic systems; the Florida Department of Transportation (FDOT); and other southwest Florida TMCs.
• Operate traffic network safely and efficiently with utililization of Connected Vehilcle technologies.
• Operate traffic signal systems in cooperation with the cities of Bradenton, Sarasota and the counties of Manatee and Sarasota.
• Provide transit signal priority for transit vehicles.


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

Last Updated 4/18/2024