Interface: Municipal/County TOC - Municipal/County Traffic Signals

Municipal/County TOC to Municipal/County Traffic Signals Interface Diagram

Information Flow Definitions

rail crossing blockage notification  (Planned)  

Notification that a highway–rail intersection is obstructed and supporting information.

rail crossing control data  (Planned)  

Data required for HRI information transmitted at railroad grade crossings and within railroad operations.

rail crossing request  (Planned)  

A request for highway–rail intersection status or a specific control request intended to modify HRI operation.

rail crossing status  (Planned)  

Status of the highway–rail intersection equipment including both the current state or mode of operation and the current equipment condition.

right-of-way request notification  (Planned)  

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  (Planned)  

Control of traffic signal controllers or field masters including clock synchronization.

signal control device configuration  (Planned)  

Data used to configure traffic signal control equipment including local controllers and system masters.

signal control plans  (Planned)  

Traffic signal timing parameters including minimum green time and interval durations for basic operation and cycle length, splits, offset, phase sequence, etc. for coordinated systems.

signal control status  (Planned)  

Operational and status data of traffic signal control equipment including operating condition and current indications.

signal fault data  (Planned)  

Faults reported by traffic signal control equipment.

signal system configuration  (Planned)  

Data used to configure traffic signal systems including configuring control sections and mode of operation (time based or traffic responsive).