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Architecture Flow Definitionshri control data
(Planned)
Data required for HRI information transmitted at railroad grade crossings and within railroad operations.
hri request
(Planned)
A request for highway-rail intersection status or a specific control request intended to modify HRI operation.
hri status
(Planned)
Status of the highway-rail intersection equipment including both the current state or mode of operation and the current equipment condition.
priority request history_ud
(Existing)
request for right-of-way
(Planned)
Forwarded request from signal prioritization, signal preemption, pedestrian call, multi-modal crossing activation, or other source for right-of-way.
signal control data
(Existing)
Information used to configure and control traffic signal systems.
signal control status
(Existing)
Status of surface street signal controls.
traffic flow
(Existing)
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).
traffic sensor control
(Planned)
Information used to configure and control traffic sensor systems.
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