Interface: TxDOT Austin District ITS Roadway Equipment - TxDOT Austin District TMC (CTECC)
Information Flow Definitions
barrier system control (Future)
Information used to configure and control barrier systems that are represented by gates, barriers and other automated or remotely controlled systems used to manage entry to roadways.
barrier system status (Future)
Current operating status of barrier systems. Barrier systems represent gates, barriers and other automated or remotely controlled systems used to manage entry to roadways. Status of the systems includes operating condition and current operational state.
environmental sensor control (Existing)
Data used to configure and control environmental sensors.
environmental sensor data (Existing)
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.
infrastructure monitoring sensor control (Future)
Data used to configure and control infrastructure monitoring sensors.
infrastructure monitoring sensor data (Future)
Data read from infrastructure–based sensors that monitor the condition or integrity of transportation infrastructure including bridges, tunnels, interchanges, pavement, culverts, signs, transit rail or guideway, and other roadway infrastructure. Includes sensor data and the operational status of the sensors.
infrastructure restriction warning control (Future)
Information used to configure and control infrastructure–based sensors that measure the size and weight of passing vehicles and associated signage that provides infrastructure restriction advisories and warnings to drivers.
infrastructure restriction warning status (Future)
Infrastructure restriction warning application status reported by field equipment. This includes current operational state and status of the field equipment and a record of measured vehicle dimensions and alerts and warnings issued.
lane management control (Future)
Information used to configure and control dynamic lane management systems.
lane management information (Future)
System status of managed lanes including current operational state, violations, and logged information. This includes lane usage information including both traditional traffic flow measures and special information associated with managed lanes such as measured passenger occupancies. It also includes the operational status of the lane management equipment.
mixed use safety warning control (Future)
Configuration and control of equipment that monitors and manages mixed use crossings and provides visual displays and warnings to drivers when non–motorized users are occupying a cross walk or other mixed use path crossing.
mixed use safety warning status (Future)
Current operational status and state of pedestrian crossings and other mixed use path crossing warning systems.
passive vehicle monitoring control (Existing)
Control commands used to control detection systems that rely on infrastructure–based identification of individual vehicles to measure travel times and other related measures by identifying the same vehicle at different points in the network. Related technologies include Bluetooth readers and license plate recognition systems.
passive vehicle monitoring data (Existing)
Time stamped identifiers that identify the vehicles that have passed through a detection zone.
rail crossing control data (Existing)
Data required for HRI information transmitted at railroad grade crossings and within railroad operations.
rail crossing request (Existing)
A request for highway–rail intersection status or a specific control request intended to modify HRI operation.
rail crossing status (Existing)
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)
Notice that a request has occurred for signal prioritization, signal preemption, pedestrian call, multi–modal crossing activation, or other source for right–of–way.
roadway advisory radio data (Existing)
Information used to initialize, configure, and control roadside highway advisory radio. This flow can provide message content and delivery attributes, local message store maintenance requests, control mode commands, status queries, and all other commands and associated parameters that support remote management of these systems.
roadway advisory radio status (Existing)
Current operating status of highway advisory radios.
roadway dynamic signage data (Existing)
Information used to initialize, configure, and control dynamic message signs. This flow can provide message content and delivery attributes, local message store maintenance requests, control mode commands, status queries, and all other commands and associated parameters that support remote management of these devices.
roadway dynamic signage status (Existing)
Current operating status of dynamic message signs.
roadway warning system control (Future)
Information used to configure and control roadway warning systems.
roadway warning system status (Future)
Current operating status of roadway warning systems.
safeguard system control (Future)
Data that controls safeguard systems (remotely controlled equipment used to mitigate the impact of incidents on transportation infrastructure, such as blast shields, exhaust systems, etc.).
safeguard system status (Future)
Current operating status of safeguard systems (remotely controlled equipment used to mitigate the impact of incidents on transportation infrastructure, such as blast shields, exhaust systems, etc.). Status of the systems includes operating condition and current operational state.
shoulder management control (Future)
Information used to configure and control systems that allow use of a shoulder as a lane for vehicular traffic.
shoulder management information (Future)
System status including current operational state, violations and logged information.
signal control commands (Existing)
Control of traffic signal controllers or field masters including clock synchronization.
signal control device configuration (Existing)
Data used to configure traffic signal control equipment including local controllers and system masters.
signal control plans (Existing)
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)
Operational and status data of traffic signal control equipment including operating condition and current indications.
signal fault data (Existing)
Faults reported by traffic signal control equipment.
signal system configuration (Existing)
Data used to configure traffic signal systems including configuring control sections and mode of operation (time based or traffic responsive).
speed monitoring control (Future)
Information used to configure and control automated speed monitoring, speed warning, and speed enforcement systems.
speed monitoring information (Future)
System status including current operational state and logged information including measured speeds, warning messages displayed, and violation records.
traffic detector control (Existing)
Information used to configure and control traffic detector systems such as inductive loop detectors and machine vision sensors.
traffic detector data (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). This flow includes the traffic data and the operational status of the traffic detectors
traffic image meta data (Existing)
Meta data that describes traffic images. Traffic images (video) are in another flow.
traffic images (Existing)
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.
traffic metering control (Future)
Control commands and operating parameters for ramp meters, interchange meters, mainline meters, and other systems equipment associated with roadway metering operations.
traffic metering status (Future)
Current operational status and operating parameters for ramp meters, interchange meters, mainline meters and other control equipment associated with roadway metering operations.
variable speed limit control (Future)
Information used to configure and control variable speed limit systems including the equipment used to provide current speed limits and other information to drivers.
variable speed limit status (Future)
Current operating status of the variable speed limit systems including the state of the equipment.
video surveillance control (Existing)
Information used to configure and control video surveillance systems.
wrong way vehicle detected (Existing)
Notification that a vehicle has been detected traveling in the wrong direction. This can be a direct report by an equipped vehicle that is being driven in the wrong direction or a report of a non–equipped vehicle that has been detected traveling in the wrong direction. It includes the current location, speed, acceleration, and heading of the wrong way vehicle.