Interface: INDOT Traffic Signal Control System - INDOT Traffic Signal Roadway Equipment
Information Flow Definitions
mixed use safety warning status (Planned) Selected Comm Solution
Current operational status and state of pedestrian crossings and other mixed use path crossing warning systems.
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
traffic images (Planned)
High fidelity, real–time traffic images suitable for surveillance monitoring by the operator or for use in machine vision applications. This flow includes the images. Meta data that describes the images is contained in another flow.