FDOT Adaptive Traffic Signal System (Seminole County/Orange County)

Project Description: Expansion of adaptive signal system in Seminole and Orange counties on SR 436/Semoran Blvd. from SR 50 to Red Bug Lake Rd.

Project Status: Planned

Project Stakeholders:

• FDOT District 5

Project Service Packages:

• TM03: Traffic Signal Control (FDOT Adaptive Traffic Signal System Project)

Project Information Flows:

Information Flow	Source Element	Destination Element	Status
signal control commands	FDOT District 5 RTMC	FDOT District 5 Field Equipment	On-going
signal control device configuration	FDOT District 5 RTMC	FDOT District 5 Field Equipment	On-going
signal control plans	FDOT District 5 RTMC	FDOT District 5 Field Equipment	On-going
signal control status	FDOT District 5 Field Equipment	FDOT District 5 RTMC	On-going
signal fault data	FDOT District 5 Field Equipment	FDOT District 5 RTMC	On-going
signal system configuration	FDOT District 5 RTMC	FDOT District 5 Field Equipment	On-going
traffic detector control	FDOT District 5 RTMC	FDOT District 5 Field Equipment	On-going
traffic detector data	FDOT District 5 Field Equipment	FDOT District 5 RTMC	On-going

Project Functional Requirements (Element - Functional Object):

• FDOT District 5 Field Equipment - Roadway Signal Control
• 1: The field element shall control traffic signals under center control.
• 3: The field element shall provide the capability to notify the traffic management center of pedestrian calls and pedestrian accommodations.
• 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.


• FDOT District 5 RTMC - TMC Signal Control
• 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.

Standards:

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

Project Operational Concepts:

Roles and Responsibilities

• FDOT District 5
• Collect vehicle probe information using roadside equipment and calculate travel times.
• Coordinate emergency traffic signal control with the county EOC/warning points.
• Coordinate the Vehicle Infrastructure Integration (VII) initiative with private vehicles using FDOT District 5 field equipment.
• Coordinate traffic information and traffic control with CFX, Brevard, Orange, Osceola, and Volusia counties; and the cities of Daytona Beach and Orlando.
• Coordinate traffic information with the Seminole County Traffic Action Center (SEMTAC); Volusia County transportation management center (TMC); the City of Orlando; Orange and Brevard counties; and other FDOT District TMCs.
• Obtain traffic images and traffic flow data from closed-circuit televisions (CCTVs) and field sensors, and maintain operational control of its own field equipment.
• Operate select traffic signal systems in the FDOT District 5 region.
• Operate signalization and control of reversible lanes in coordination with FDOT District 7 and the Florida Highway Patrol (FHP) for evacuation purposes.
• Provide parking demand information to private/public parking facilities to determine parking capacity and traffic implications at the facility.