City of Clearwater Transit Signal Priority

Project Description: Implement transit signal priority on city streets to support PSTA operations in the city.

Project Status: Planned

Project Stakeholders:

• City of Clearwater Traffic Operations Division
• Pinellas Suncoast Transit Authority

Project Service Packages:

• PT09: Transit Signal Priority (PSTA/ City of Clearwater)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
local signal priority request	PSTA Transit Vehicles	City of Clearwater Field Equipment	Planned
right-of-way request notification	City of Clearwater Field Equipment	City of Clearwater Traffic Control Center	Planned
signal control commands	City of Clearwater Traffic Control Center	City of Clearwater Field Equipment	Planned
signal control status	City of Clearwater Field Equipment	City of Clearwater Traffic Control Center	Planned

Project Functional Requirements (Element - Functional Object):

• City of Clearwater 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.


• City of Clearwater Traffic Control Center - TMC Signal Control
• 1: The center shall remotely control traffic signal controllers.


• PSTA 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.

Standards:

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

Project Operational Concepts:

Roles and Responsibilities

• Pinellas Suncoast Transit Authority
• Coordinate with the Pinellas County TMC, and the cities of Clearwater and St. Petersburg for traffic signal priority.


• City of Clearwater Traffic Operations Division
• Provide transit signal priority with roadside devices for PSTA transit vehicles.