Interface: Freight Truck Vehicles - Local Connected Vehicle Roadside Equipment
Architecture Flow Definitions
automated vehicle control parameters (Planned ) Applicable ITS Standards
Information, instructions, and control parameters for automated vehicle operations including current system conditions and advisories, control parameters (e.g., speed, required vehicle performance profiles, gaps or headways) and check in/checkout instructions.
automated vehicle control status (Planned ) Applicable ITS Standards
Data provided by a connected vehicle identifying it's current mode and operational status and information provided to support check–in/checkout of the lane and coordinated maneuvers while on the automated facility.
cooperative adaptive cruise control parameters (Planned ) Applicable ITS Standards
Information, instructions, and control parameters for CACC operations including current system conditions and advisories, control parameters (e.g., target speeds, required vehicle profiles, recommended gaps, lane information) and cluster instructions that support CACC vehicle string creation and dissolution.
cooperative adaptive cruise control status (Planned ) Applicable ITS Standards
Data provided by a connected vehicle identifying it's current mode and operational status and information provided to support CACC string creation and dissolution.
intersection geometry (Planned ) Applicable ITS Standards
The physical geometry of an intersection covering the location and width of each approaching lane, egress lane, and valid paths between approaches and egresses. This flow also defines the location of stop lines, cross walks, specific traffic law restrictions for the intersection (e.g., turning movement restrictions), and other elements that support calculation of a safe and legal vehicle path through the intersection.
intersection infringement info (Planned ) Applicable ITS Standards
Vehicle path information sent by a vehicle that is violating the stop bar at an intersection. This flow includes the vehicle's position, heading, speed, acceleration, transmission, steering–wheel angle, braking status, size information and trajectory.
intersection safety warning (Planned ) Applicable ITS Standards
A warning of an imminent unsafe vehicle infringement at an intersection that may endanger other vehicles or pedestrians. This allows vehicles approaching the intersection to be warned in the event of an imminent red light or stop sign violation or potential infringement on an occupied crosswalk. All connected vehicles at the intersection receive the warning, including both the infringing vehicle and other vehicles at or near the intersection.
intersection status (Planned ) Applicable ITS Standards
Current signal phase and timing information for all lanes at a signalized intersection. This flow identifies active lanes and lanes that are being stopped and specifies the length of time that the current state will persist for each lane. It also identifies signal priority and preemption status and pedestrian crossing status information where applicable.
ITS information (Planned )
Information exchanged by ITS systems or devices. This flow is a super–flow; it does not define specific content since it represents any information flow exchange between physical objects defined in ARC–IT. This information flow represents any of those information flows and inherits the data content and attributes defined in the more detailed information flows.
loading zone parking information (Planned ) Applicable ITS Standards
Information provided for a loading zone and associated holding areas. It includes parking reservation(s), confirmation (or non–confirmation) information, alternative options, and detailed information on the holding parking areas, and the loading zone, including guidance within and between the holding and loading zone areas.
loading zone use request (Planned ) Applicable ITS Standards
Request, booking, and confirmation that supports reservation for use of a loading or unloading area.
local signal priority request (Planned ) Applicable ITS Standards
Request from a vehicle to a signalized intersection for priority at that intersection. This flow also allows the vehicle to cancel a priority request (for example, when the vehicle clears the intersection).
local traveler information (Planned ) Applicable ITS Standards
Traveler information including traffic, road, and weather conditions for a particular locality. This flow includes the location–specific traveler information and time effectivity of the information.
location correction (Planned ) Applicable ITS Standards
Information provided to improve positional accuracy. These corrections allow a mobile GPS receiver, such as a GPS system in a connected vehicle, to achieve a
greater absolute positional accuracy, compensating for errors that exist in satellite positioning.
map updates (Planned ) Applicable ITS Standards
Map update which could include a new underlying static or real–time map or map layer(s) update.
parking availability (Planned ) Applicable ITS Standards
Information on available parking. This flow identifies available spaces with associated information about parking restrictions and location for each available space.
parking facility geometry (Planned ) Applicable ITS Standards
Precise spatial description of a parking facility that locates each parking space and the ingress and egress routes that are used to travel to and from the spaces.
queue warning information (Planned ) Applicable ITS Standards
Information regarding formed or impending queues (location of the end of queue, estimated duration of the queue, and other descriptions of the queue condition) and recommendations for upstream vehicles including speed reduction, lane change, or diversion recommendations.
roadway geometry (Planned ) Applicable ITS Standards
The physical geometry of a road segment that specifies the location and width of each lane, including normal lanes as well as special lanes for pedestrians and bicycles, transit vehicles, and trains. This flow also may include the curvature, grade, and superelevation or banking of the road segment.
service advertisement (Planned ) Applicable ITS Standards
An advertisement of available services and identification of how those services may be accessed (e.g., RF parameters, identifiers, etc.). Services include network services such as IPv6 routing, public roadside services such as intersection safety, back office services including situation data services and security credentials, or private services.
signal priority status (Planned ) Applicable ITS Standards
In response to a request for signal priority, this flow indicates the status of the priority or preemption request.
vehicle cluster coordination (Planned ) Applicable ITS Standards
Coordination between CACC–equipped vehicles that enable formation and management of strings of adjacent equipped vehicles that coordinate speed management across the string. This flow includes coordination between CACC–equipped vehicles that enable adjacent vehicles in the same lane to identify each other and couple. Depending on the CACC implementation, this flow also supports identification of the lead vehicle in the string, operating performance parameters for the string, destination information so that drivers can join strings that share their destination, and coordination so that strings of vehicles are ordered based on the individual weight and performance profile of each participating vehicle. This flow also supports dissolution of CACC vehicle strings as vehicles depart from the string.
vehicle control event (Planned ) Applicable ITS Standards
Notification that the vehicle has performed an emergency action that could impact the safety of surrounding vehicles. This includes hard braking and activation of traction/stability control systems or other actions that warrant immediate notification of surrounding vehicles. The information flow conveys the vehicle's position, heading, speed, acceleration, transmission, steering wheel angle, braking status, size information, and trajectory.
vehicle environmental data (Planned ) Applicable ITS Standards
Data from vehicle safety and convenience systems that can be used to estimate environmental and infrastructure conditions, including measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti–lock brake status, vertical acceleration and other collected vehicle system status and sensor information. The collected data is reported along with the location, heading, and time that the data was collected. Both current data and snapshots of recent events (e.g., traction control or anti–lock brake system activations) may be reported.
vehicle location and motion (Planned ) Applicable ITS Standards
Data describing the vehicle's position, heading, speed, acceleration, transmission, steering wheel angle, braking status, size information, and trajectory.
vehicle location and motion for surveillance (Planned ) Applicable ITS Standards
Data describing the vehicle's position, heading, speed, acceleration, transmission, steering wheel angle, braking status, size information, and trajectory. This flow represents monitoring of basic safety data ('vehicle location and motion') broadcast by passing connected vehicles for use in vehicle detection and traffic monitoring applications.
vehicle payment information (Planned ) Applicable ITS Standards
Information provided for payment of tolls, parking, and other transportation fees including identification that can be used to identify the payment account or source and related vehicle and service information that are used to determine the type and price of service requested. The information exchange normally supports an account debit to pay fees, but an account credit may be initiated where pricing strategies include incentives.
vehicle payment request (Planned ) Applicable ITS Standards
Request for information supporting payments. For fee structures that include incentives, the request may support either an account debit or an account credit or reimbursement.
vehicle payment update (Planned ) Applicable ITS Standards
Data written to vehicle equipment to support electronic toll collection or parking payment.
vehicle platoon coordination (Planned ) Applicable ITS Standards
Coordination of control commands between leader and follower vehicles allowing vehicles to join, coordinate with, and separate from platoons of cooperative vehicles. This flow shares platoon size, location, and performance parameters (e.g., platoon speed and spacing) between platooned vehicles. It also coordinates maneuvers between platooned vehicles, including maneuvers as vehicles join and leave the platoon.
vehicle profile (Planned ) Applicable ITS Standards
Information about a vehicle such as vehicle make and model, fuel type, engine type, size and weight, vehicle performance and level of control automation, average emissions, average fuel consumption, passenger occupancy, or other data that can be used to classify vehicle eligibility for access to specific lanes, road segments, or regions or participation in cooperative vehicle control applications.
vehicle signage data (Planned ) Applicable ITS Standards
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, detours, advisories, and warnings).
vehicle situation data (Planned ) Applicable ITS Standards
This flow represents vehicle snapshots that may be provided by the vehicle to support traffic and environmental conditions monitoring. Snapshots are collected by the vehicle for specific events (e.g., when a sensor exceeds a threshold) or periodically and reported based on control parameters when communications is available. Traffic–related data includes snapshots of measured speed and heading and events including starts and stops, speed changes, and other vehicle control events. Environmental data may include measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti–lock brake status, and other collected vehicle system status and sensor information. The collected data is reported along with the location, heading, and time that the data was collected.
vehicle situation data parameters (Planned ) Applicable ITS Standards
A request for vehicle situation data that includes parameters used to control the data that is reported and the flow of data reported by the vehicle. This flow identifies the type of data/snapshots that are requested and reporting parameters such as snapshot frequency, filtering criteria (data thresholds for reporting), and reporting interval.