Tallahassee Traffic Signal Upgrades

Project Description: Project to cover Tallahassee traffic signal related projects. Per the Tallahassee Master Plan, this will include Flashing Yellow Arrow (FYA) upgrades and traffic signal cabinet upgrades.

Project Status: On-going

Project Stakeholders:

• City of Tallahassee
• FDOT D3/City of Tallahassee

Project Service Packages:

• TM03: Traffic Signal Control (FDOT District 3 – City of Tallahassee)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
right-of-way request notification	City of Tallahassee Field Equipment	City of Tallahassee STMC	Planned
signal control commands	City of Tallahassee STMC	City of Tallahassee Field Equipment	Planned
signal control device configuration	City of Tallahassee STMC	City of Tallahassee Field Equipment	Planned
signal control plans	City of Tallahassee STMC	City of Tallahassee Field Equipment	Planned
signal control status	City of Tallahassee Field Equipment	City of Tallahassee STMC	Planned
signal fault data	City of Tallahassee Field Equipment	City of Tallahassee STMC	Planned
signal system configuration	City of Tallahassee STMC	City of Tallahassee Field Equipment	Planned

Project Functional Requirements (Element - Functional Object):

• City of Tallahassee Field Equipment - Roadway Basic Surveillance
• 01: The field element shall collect, process, digitize, and send traffic sensor data (speed, volume, and occupancy) to the center for further analysis and storage, under center control.
• 02: The field element shall collect, process, and send traffic images to the center for further analysis and distribution.
• 04: The field element shall return sensor and CCTV system operational status to the controlling center.


• City of Tallahassee Field Equipment - Roadway Signal Control
• 01: The field element shall control traffic signals under center control.
• 04: The field element shall report the current signal control information to the center.
• 05: The field element shall report current preemption status to the center.
• 06: The field element shall return traffic signal controller operational status to the center.
• 07: The field element shall return traffic signal controller fault data to the center.
• 08: The field element shall report current transit priority status to the center.


• City of Tallahassee STMC - TMC Basic Surveillance
• 01: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
• 02: The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.


• City of Tallahassee STMC - TMC Signal Control
• 01: The center shall remotely control traffic signal controllers.
• 03: The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
• 04: The center shall collect traffic signal controller fault data from the field.
• 05: The center shall manage (define, store and modify) control plans to coordinate signalized intersections, to be engaged at the direction of center personnel or according to a daily schedule.
• 06: The center shall implement control plans to coordinate signalized intersections based on data from sensors.
• 07: The center shall manage boundaries of the control sections used within the signal system.
• 08: The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.

Standards:

• US: NTCIP Signal Priority - SNMPv3/TLS
• US: NTCIP Signal System Masters - SNMPv3/TLS
• US: NTCIP Traffic Signal - SNMPv3/TLS

Project Operational Concepts:

Roles and Responsibilities

• City of Tallahassee
• Operate traffic signal systems, including CCTVs, signals, and sensors, for the City of Tallahassee. Utilize signal systems owned by county and local agencies, as well as FDOT District 3.


• FDOT D3/City of Tallahassee
• Operate traffic signal systems in the City of Tallhassee and Leon County.