Interface: Washington State Patrol Vehicles - WSDOT SWR Field Equipment
![Washington State Patrol Vehicles to WSDOT SWR Field Equipment Interface Diagram](../../images/ifs/if15-27.png)
Information Flow Definitions
local signal preemption request (Existing) 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.