Interface: Caltrans D6/CHP Central Valley TMC - Caltrans D6 Park and Ride Facilities
Architecture Flow Definitions
archive requests (Planned) Applicable ITS Standards
A request to a data source for information on available data (i.e. "catalog") or a request that defines the data to be archived. The request can be a general subscription intended to initiate a continuous or regular data stream or a specific request intended to initiate a one-time response from the recipient.
archive status (Planned) Applicable ITS Standards
Notification that data provided to an archive contains erroneous, missing, or suspicious data or verification that the data provided appears valid. If an error has been detected, the offending data and the nature of the potential problem are identified.
barrier system control (Planned)
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 (Planned)
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.
data collection and monitoring control (Planned)
Information used to configure and control data collection and monitoring systems.
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.
hov data (Planned)
Current HOV lane information including both standard traffic flow measures and information regarding vehicle occupancy in HOV lanes, and operational status of the HOV monitoring equipment.
hri 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.
intersection blockage notification (Planned)
Notification that a highway-rail intersection is obstructed and supporting information.
lane management control (Planned)
Information used to configure and control dynamic lane management systems.
lane management information (Planned)
System status including current operational state, violations, and logged information.
parking archive data (Planned) Applicable ITS Standards
Data used to analyze and monitor trends in parking demand, pricing, and operational actions. Content may include a catalog of available information, the actual information to be archived, and associated meta data that describes the archived information.
parking demand management request (Planned) Applicable ITS Standards
Request to change the demand for parking facility use through pricing or other mechanisms.
parking demand management response (Planned) Applicable ITS Standards
Response to parking demand management change requests indicating level of compliance with request.
parking information (Planned) Applicable ITS Standards
General parking information and status, including current parking availability.
parking lot data request (Planned) Applicable ITS Standards
Request for parking lot occupancy, fares, and availability. The request can be a subscription that initiates as-needed information updates as well as a one-time request for information.
parking lot inputs (Planned) Applicable ITS Standards
Instructions for operation of local parking facilities to support regional traffic management objectives (e.g. which parking lot exits to use). Also, includes inputs from traffic sensors to support calculation of parking lot occupancy and support more effective management of parking entrances and exits.
parking operator inputs (Planned)
User input from the parking operator to query current status and control the operation of the parking management system.
parking status (Planned)
Presentation of information to the parking operator including operational status and transaction reports.
probe archive data (Planned)
Probe data that allows calculation of travel times, volumes, and other measures that support transportation planning. Optionally, this flow also includes origin and destination information for vehicles that opt to provide this information.
request for performance data (Planned)
User input from the parking operator to request current parking service performance data.
right-of-way request notification (Planned)
Notice that a request has occurred for signal prioritization, signal preemption, pedestrian call, multi-modal crossing activation, or other source for right-of-way.
roadside archive data (Planned)
A broad set of data derived from roadside sensors that includes current traffic conditions, environmental conditions, and any other data that can be directly collected by roadside sensors. This data also indicates the status of the sensors and reports of any identified sensor faults.
roadway information system data (Planned)
Information used to initialize, configure, and control roadside systems that provide driver information (e.g., dynamic message signs, highway advisory radio, beacon systems). 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 information system status (Planned)
Current operating status of dynamic message signs, highway advisory radios, beacon systems, or other configurable field equipment that provides dynamic information to the driver.
roadway warning system control (Planned)
Information used to configure and control roadway warning systems.
roadway warning system status (Planned)
Current operating status of roadway warning systems.
safeguard system control (Planned)
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 (Planned)
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.
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.
shoulder management control (Planned)
Information used to configure and control systems that allow use of a shoulder as a lane for vehicular traffic.
shoulder management information (Planned)
System status including current operational state, violations and logged information.
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 probe data (Planned)
Vehicle data that is used to determine traffic conditions. In a basic implementation, the data could be limited to time stamped unique identifiers that can be used to measure a vehicle’s progress through the network. In more advanced implementations, the vehicle may report current position, speed, and heading and snapshots of recent events including route information, starts and stops, speed changes, and other information that can be used to estimate traffic conditions.
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.