City of Clearwater Signal System Upgrades

Project Description: Upgrade of legacy signal systems.

Project Status: Planned

Project Stakeholders:

Project Inventory:

Interconnect and Flow

Diagrams

Project Service Packages:

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
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 device configuration	City of Clearwater Traffic Control Center	City of Clearwater Field Equipment	Planned
signal control plans	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
signal system configuration	City of Clearwater Traffic Control Center	City of Clearwater Field Equipment	Planned
traffic detector control	City of Clearwater Traffic Control Center	City of Clearwater Field Equipment	Planned
traffic detector data	City of Clearwater Field Equipment	City of Clearwater Traffic Control Center	Planned

Project Functional Requirements (Element - Functional Object):

1: 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.
2: The field element shall collect, process, and send traffic images to the center for further analysis and distribution.

1: The field element shall control traffic signals under center control.
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.

1: The field element shall include dynamic message signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. vehicle restrictions, or lane open/close).

1: The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
2: The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.

1: The center shall remotely control traffic signal controllers.
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.
5: 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.
6: The center shall implement control plans to coordinate signalized intersections based on data from sensors.
7: The center shall manage boundaries of the control sections used within the signal system.
8: The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.

City of Clearwater Traffic Control Center - TMC Traffic Information Dissemination

1: The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.

Standards:

Project Operational Concepts:

Roles and Responsibilities

Last Updated 8/15/2023