Interface: Caltrans D6 Environmental Sensor Stations - CSU Fresno Research Program
Architecture Flow Definitions
environmental sensor data (Planned)
Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors. Operational status of the sensors is also included.
environmental sensors control (Planned)
Data used to configure and control environmental sensors.
short range communications status (Planned)
Status of the short range communications equipment including the current state or mode of operation and the current equipment status.
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 from 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).
traffic flow (Planned)
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.
traffic metering control (Planned)
Control commands and operating parameters for ramp meters, interchange meters, mainline meters, and other systems equipment associated with roadway metering operations.
traffic metering status (Planned)
Current operational status and operating parameters for ramp meters, interchange meters, mainline meters and other control equipment associated with roadway metering operations.
traffic sensor control (Planned)
Information used to configure and control traffic sensor systems.
vehicle signage data (Planned)
In-vehicle signing data that augments regulatory, warning, and informational road signs and signals. The information provided would include static sign information (e.g., stop, curve warning, guide signs, service signs, and directional signs) and dynamic information (e.g., current signal states, grade crossing information, local traffic and road conditions, advisories, and detours).
video surveillance control (Planned)
Information used to configure and control video surveillance systems.