Broward County Signal Preemption/Priority Upgrades

Project Description: This project would upgrade the radio receivers and field cards to upgrade the signal priority and signal preemption capabilities of traffic signals in Broward County.

Project Status: Planned

Project Stakeholders:

• Broward County Public Works and Transportation Administration
• Broward County Transit
• County Public Safety Agencies
• Local Agencies

Project Service Packages:

• PS03: Emergency Vehicle Preemption (Broward County)
• PT09: Transit Signal Priority (Broward County Transit)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
local signal preemption request	County Fire EMS/Rescue Vehicles	Broward County Field Equipment	Planned
local signal preemption request	Local Fire/EMS Vehicles	Broward County Field Equipment	Planned
local signal priority request	BCT Fixed Route Vehicles	Broward County Field Equipment	Planned
right-of-way request notification	Broward County Field Equipment	Broward County TMC	Planned

Project Functional Requirements (Element - Functional Object):

• BCT Fixed Route Vehicles - Transit Vehicle Signal Priority
• 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.


• Broward 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.
• 15: The field element shall receive requests for emergency vehicle signal preemption.
• 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.
• 8: The field element shall report current transit priority status to the center.


• Broward County Field Equipment - Roadway Signal Preemption
• 1: The field element shall respond to signal preemption requests from emergency vehicles.
• 3: The field element shall send the preemption request to the signal controller to immediately preempt the signal for the requested direction.


• Broward County TMC - 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.


• Broward County TMC - 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.
• 3: The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
• 4: The center shall collect traffic signal controller fault data from the field.

Standards:

• US: NTCIP Signal Priority - SNMPv3/TLS
• US: SAE Signal Preemption - WAVE TCP

Project Operational Concepts:

Roles and Responsibilities

• Broward County Public Works and Transportation Administration
• Collect traffic data from the traffic signal system sensors.
• Coordinate highway-rail intersection signal adjustments.
• Interconnect with City of Port St. Lucie and City of Fort Pierce traffic signal systems.
• Operate traffic signal systems on county-owned arterials, as well as some municipal arterials.
• Provide signal preemption for emergency vehicles.
• Provide signal priority for transit vehicles.


• Broward County Transit
• Install and maintain on-board signal priority equipment.


• Local Agencies
• Install and maintain on-board signal preemption equipment.


• County Public Safety Agencies
• Install and maintain on-board signal preemption equipment.