Interface: KYTC Traffic Signal Control System - KYTC Traffic Signal Roadway Equipment

KYTC Traffic Signal Control System to KYTC Traffic Signal Roadway Equipment Interface Diagram

Information Flow Definitions

rail crossing blockage notification  (Existing)  Selected Comm Solution

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

rail crossing control data  (Planned)  Selected Comm Solution

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

rail crossing request  (Planned)  Selected Comm Solution

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

rail crossing status  (Planned)  Selected Comm Solution

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  (Existing)  Selected Comm Solution

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)  Selected Comm Solution

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

signal control device configuration  (Existing)  Selected Comm Solution

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

signal control plans  (Existing)  Selected Comm Solution

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  (Existing)  Selected Comm Solution

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

signal fault data  (Existing)  Selected Comm Solution

Faults reported by traffic signal control equipment.

signal system configuration  (Existing)  Selected Comm Solution

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

traffic detector control  (Planned)  Selected Comm Solution

Information used to configure and control traffic detector systems such as inductive loop detectors and machine vision sensors.

traffic detector data  (Planned)  Selected Comm Solution

Raw and/or processed traffic detector data which allows derivation of traffic flow variables (e.g., speed, volume, and density measures) and associated information (e.g., congestion, potential incidents). This flow includes the traffic data and the operational status of the traffic detectors

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