Interface: Tribal Police and Fire Vehicles - Tribal ITS Field Equipment
![Tribal Police and Fire Vehicles to Tribal ITS Field Equipment Interface Diagram](../../images/ifs/if139-264.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.