Interface: NDOT Freeway Service Patrol Vehicles - Mesquite Connected Vehicle Roadside Equipment

NDOT Freeway Service Patrol Vehicles to Mesquite Connected Vehicle Roadside Equipment Interface Diagram

Architecture Flow Definitions

access permission  (Planned)  Applicable ITS Standards

Information returned indicating whether permission for access is granted and instructions for proceeding.

access request  (Planned)  Applicable ITS Standards

Request for access to an access–controlled transportation facility.

access violation notification  (Planned)  Applicable ITS Standards

Notification to an individual vehicle that it has committed a lane violation. The flow identifies the nature of the violation and the time and location where the violation was recorded.

arriving train information  (Planned)  Applicable ITS Standards

Information for a train approaching a highway–rail intersection that may include direction and allow calculation of approximate arrival time and closure duration.

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 checkin/checkout of the lane and coordinated maneuvers while on the automated facility.

barrier system control  (Planned)  Applicable ITS Standards

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)  Applicable ITS Standards

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.

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.

current charging status  (Planned)  Applicable ITS Standards

Current charging status including current charge rate, estimated time to completion, and cost associated with the charge.

electric charging services inventory  (Planned)  Applicable ITS Standards

Aggregate information provided for electric charging stations identifying the location, operating hours, current availability, charging capacity and standards supported, access restrictions, and rates/fee structure for each station.

incident scene warning notification  (Planned)  Applicable ITS Standards

Notification of an incident scene emergency or safety issue. This flow identifies that an incident scene emergency or safety issue has occurred so that warnings may be generated by more than one system in the work zone.

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.

lane closure information  (Planned)  Applicable ITS Standards

Lane closure information provided to passing vehicles. This flow provides information about roadway configuration changes such as lane closures and shifts.

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 preemption request  (Planned)  Applicable ITS Standards

Direct control signal or message to a signalized intersection that results in preemption of the current control plan and grants right–of–way to the requesting vehicle.

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.

low emissions zone parameters  (Planned)  Applicable ITS Standards

The geographic boundaries, time period, and fee structure for a low emissions zone. This flow also provides the specific restrictions that are in place for the zone including admittance requirements and rules and restrictions for driving within the zone.

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.

private location and address flow  (Planned)  Applicable ITS Standards

Any information flow between Vehicle/PID and Center or CCMS that the initiator needs to be kept private. Privacy in this sense means that the receiver does not receive the network address of the initiator, nor does it receive the geographic location of the initiator. Flows that depend on initiator geographic location cannot use this service.

proxied personal location  (Planned)  Applicable ITS Standards

Relay of pedestrian, bicyclist, and other non–motorized user locations at an intersection. This relay or rebroadcast of personal locations supports coordination between motorized and non–motorized users that do not have interoperable communications capability.

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.

rail crossing warning  (Planned)  Applicable ITS Standards

A warning of a train approaching or already in a highway rail intersection.

reduced speed notification  (Planned)  Applicable ITS Standards

Reduced speed zone information provided to passing vehicles. This flow provides the reduced speed limit, the location and extent of the reduced speed zone, and associated warning information.

restricted lanes application info  (Planned)  Applicable ITS Standards

Restricted lane application configuration data and messaging parameters. This flow defines the location, duration, and operating parameters for lanes that are reserved for the exclusive use of certain types of vehicles (e.g., transit vehicles) or vehicles that meet other qualifications (e.g., number of occupants, low emissions criteria). It identifies the lane(s), the start and stop locations, start and end times, vehicle restrictions, speed limits and platooning parameters. This flow also supports remote control of the application so the application can be taken offline, reset, or restarted.

restricted lanes information  (Planned)  Applicable ITS Standards

This flow defines the location, duration, and operating parameters for lanes that are reserved for the exclusive use of certain types of vehicles (e.g., transit vehicles) or vehicles that meet other qualifications (e.g., number of occupants, low emissions criteria). It identifies the lane(s), the start and stop locations, start and end times, vehicle restrictions, speed limits and platooning parameters.

restricted lanes parameters  (Planned)  Applicable ITS Standards

The location, duration, and operating parameters for lanes that are reserved for the exclusive use of certain types of vehicles (e.g., transit vehicles) or vehicles that meet other qualifications (e.g., number of occupants, low emissions criteria). It identifies the lane(s), the start and stop locations, start and end times, vehicle restrictions, speed limits and platooning parameters.

road closure information  (Planned)  Applicable ITS Standards

Road closure information provided to passing vehicles. This flow provides information about the road closure with diversion information.

road pricing equipment status  (Planned)  Applicable ITS Standards

Provides an indication of the operational status of the road pricing data collection equipment in a vehicle. Also indicates vehicle ID (VIN) so that the registration of the equipment to a specific vehicle can be verified and confirmed by comparison with vehicle characteristics.

road use charges  (Planned)  Applicable ITS Standards

Road use charges per link.

road use history  (Planned)  Applicable ITS Standards

A vehicle's road use history that records where the vehicle has traveled over time. Optionally includes vehicle speeds as well as distance traveled for some applications. Information is accurate enough to distinguish between adjacent roads, adjacent lanes, and identify direction of travel on the roads.

road weather advisories  (Planned)  Applicable ITS Standards

Segment–specific weather and road conditions including real–time advisories of deteriorating road and weather conditions, medium–term advisories for the next 212 hours, and long–term advisories more than 12 hours into the future. The advisories may include advisories that are issued by the RSE based on locally collected environmental data (e.g., an ice on bridge advisory).

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.

speed management information  (Planned)  Applicable ITS Standards

Target speeds, speed advisories, and/or speed limit information provided to a vehicle. The information includes the current speed value(s), the route segment(s) and lane(s) where the speeds apply, and an indication of whether the speeds are suggested target speeds, posted advisory speeds, or enforceable speed limit values. This flow may also include information about the reason for reduced speeds and provide target lane information if lane changes are required.

traffic gap information  (Planned)  Applicable ITS Standards

Measured gap to the next approaching vehicle per lane and direction of travel

traveler border clearance status  (Planned)  Applicable ITS Standards

Information indicating whether border clearance has been granted and instructions if additional processing is required.

traveler credentials  (Planned)  Applicable ITS Standards

Traveler identification, including trusted traveler program information, if applicable.

vehicle charging profile  (Planned)  Applicable ITS Standards

Vehicle information provided to an electric charging station including the operational status of the electrical system, the charging capacity and charging rate for the vehicle, and % charge complete.

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 reported emissions  (Planned)  Applicable ITS Standards

Current and average vehicle emissions data as measured by vehicle diagnostics systems and reported by the vehicle.

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.

wrong way vehicle detected  (Planned)  Applicable ITS Standards

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.