Interface: TxDOT Houston Signal Preemption - TxDOT Houston TMC
Information Flow Definitions
right-of-way request notification (Existing)
Notice that a request has occurred for signal prioritization, signal preemption, pedestrian call, multi–modal crossing activation, or other source for right–of–way.
signal control commands (Existing)
Control of traffic signal controllers or field masters including clock synchronization.
signal control status (Existing)
Operational and status data of traffic signal control equipment including operating condition and current indications.