Interface: City of Alcoa Fire Vehicles - City of Alcoa Traffic Signals
![City of Alcoa Fire Vehicles to City of Alcoa Traffic Signals Interface Diagram](../../images/ifs/if12-15.png)
Information Flow Definitions
local signal preemption request (Planned) Selected Comm Solution
Direct control signal or message to a signalized intersection that results in preemption of the current control plan and grants right–of–way to the requesting vehicle.