Parent Service Package: VS13
< < VS13.2 : VS13.3 : VS14.1 > >

VS13.3: MEC Implementation

MEC devices are used to efficiently communicate intersection status to vehicles in the vicinity, using wide area wireless communications.

Relevant Regions: Australia, Canada, European Union, and United States

Enterprise

Development Stage Roles and Relationships

Installation Stage Roles and Relationships

Operations and Maintenance Stage Roles and Relationships
(hide)

Source Destination Role/Relationship
Basic Vehicle MaintainerBasic Vehicle Maintains
Basic Vehicle ManagerBasic Vehicle Manages
Basic Vehicle ManagerDriver System Usage Agreement
Basic Vehicle OwnerBasic Vehicle Maintainer System Maintenance Agreement
Basic Vehicle OwnerBasic Vehicle Manager Operations Agreement
Basic Vehicle OwnerDriver Application Usage Agreement
Basic Vehicle OwnerDriver Vehicle Operating Agreement
Basic Vehicle OwnerVehicle Maintainer Maintenance Data Exchange Agreement
Basic Vehicle OwnerVehicle Owner Expectation of Data Provision
Basic Vehicle OwnerVehicle User Service Usage Agreement
Basic Vehicle SupplierBasic Vehicle Owner Warranty
DriverBasic Vehicle Operates
DriverRoadway Owner Expectation of Roadway Condition Management
DriverVehicle Operates
ITS Roadway Equipment MaintainerITS Roadway Equipment Maintains
ITS Roadway Equipment ManagerITS Roadway Equipment Manages
ITS Roadway Equipment ManagerMaint and Constr Field Personnel System Usage Agreement
ITS Roadway Equipment OwnerITS Roadway Equipment Maintainer System Maintenance Agreement
ITS Roadway Equipment OwnerITS Roadway Equipment Manager Operations Agreement
ITS Roadway Equipment OwnerMulti-Access Edge Computing Maintainer Maintenance Data Exchange Agreement
ITS Roadway Equipment OwnerMulti-Access Edge Computing Operator Application Usage Agreement
ITS Roadway Equipment OwnerMulti-Access Edge Computing Owner Information Exchange and Action Agreement
ITS Roadway Equipment OwnerMulti-Access Edge Computing User Service Usage Agreement
ITS Roadway Equipment OwnerTraffic Management Center Maintainer Maintenance Data Exchange Agreement
ITS Roadway Equipment OwnerTraffic Management Center Owner Information Exchange Agreement
ITS Roadway Equipment OwnerTraffic Management Center User Service Usage Agreement
ITS Roadway Equipment OwnerTraffic Operations Personnel Application Usage Agreement
ITS Roadway Equipment SupplierITS Roadway Equipment Owner Warranty
Maint and Constr Field PersonnelITS Roadway Equipment Operates
Multi-Access Edge Computing MaintainerMulti-Access Edge Computing Maintains
Multi-Access Edge Computing ManagerMulti-Access Edge Computing Manages
Multi-Access Edge Computing ManagerMulti-Access Edge Computing Operator System Usage Agreement
Multi-Access Edge Computing OperatorMulti-Access Edge Computing Operates
Multi-Access Edge Computing OwnerDriver Application Usage Agreement
Multi-Access Edge Computing OwnerITS Roadway Equipment Maintainer Maintenance Data Exchange Agreement
Multi-Access Edge Computing OwnerITS Roadway Equipment Owner Information Exchange and Action Agreement
Multi-Access Edge Computing OwnerITS Roadway Equipment User Service Usage Agreement
Multi-Access Edge Computing OwnerMaint and Constr Field Personnel Application Usage Agreement
Multi-Access Edge Computing OwnerMulti-Access Edge Computing Maintainer System Maintenance Agreement
Multi-Access Edge Computing OwnerMulti-Access Edge Computing Manager Operations Agreement
Multi-Access Edge Computing OwnerTraffic Management Center Maintainer Maintenance Data Exchange Agreement
Multi-Access Edge Computing OwnerTraffic Management Center Owner Information Exchange Agreement
Multi-Access Edge Computing OwnerTraffic Management Center User Service Usage Agreement
Multi-Access Edge Computing OwnerTraffic Operations Personnel Application Usage Agreement
Multi-Access Edge Computing OwnerVehicle Maintainer Maintenance Data Exchange Agreement
Multi-Access Edge Computing OwnerVehicle Owner Expectation of Information Provision
Multi-Access Edge Computing OwnerVehicle User Service Usage Agreement
Multi-Access Edge Computing SupplierMulti-Access Edge Computing Owner Warranty
Other Vehicle OBEs OperatorOther Vehicles Operates
Other Vehicles MaintainerOther Vehicles Maintains
Other Vehicles ManagerOther Vehicle OBEs Operator System Usage Agreement
Other Vehicles ManagerOther Vehicles Manages
Other Vehicles OwnerDriver Application Usage Agreement
Other Vehicles OwnerDriver Vehicle Operating Agreement
Other Vehicles OwnerOther Vehicles Maintainer System Maintenance Agreement
Other Vehicles OwnerOther Vehicles Manager Operations Agreement
Other Vehicles OwnerVehicle Maintainer Maintenance Data Exchange Agreement
Other Vehicles OwnerVehicle Owner Expectation of Data Provision
Other Vehicles OwnerVehicle User Service Usage Agreement
Other Vehicles SupplierOther Vehicles Owner Warranty
Roadway MaintainerRoadway Environment Maintains
Roadway ManagerRoadway Environment Manages
Roadway OwnerRoadway Maintainer System Maintenance Agreement
Roadway OwnerRoadway Manager Operations Agreement
Traffic Management Center MaintainerTraffic Management Center Maintains
Traffic Management Center ManagerTraffic Management Center Manages
Traffic Management Center ManagerTraffic Operations Personnel System Usage Agreement
Traffic Management Center OwnerITS Roadway Equipment Maintainer Maintenance Data Exchange Agreement
Traffic Management Center OwnerITS Roadway Equipment Owner Information Exchange Agreement
Traffic Management Center OwnerITS Roadway Equipment User Service Usage Agreement
Traffic Management Center OwnerMaint and Constr Field Personnel Application Usage Agreement
Traffic Management Center OwnerMulti-Access Edge Computing Maintainer Maintenance Data Exchange Agreement
Traffic Management Center OwnerMulti-Access Edge Computing Operator Application Usage Agreement
Traffic Management Center OwnerMulti-Access Edge Computing Owner Information Exchange Agreement
Traffic Management Center OwnerMulti-Access Edge Computing User Service Usage Agreement
Traffic Management Center OwnerTraffic Management Center Maintainer System Maintenance Agreement
Traffic Management Center OwnerTraffic Management Center Manager Operations Agreement
Traffic Management Center SupplierTraffic Management Center Owner Warranty
Traffic Operations PersonnelTraffic Management Center Operates
Vehicle MaintainerVehicle Maintains
Vehicle ManagerDriver System Usage Agreement
Vehicle ManagerVehicle Manages
Vehicle OwnerBasic Vehicle Maintainer Maintenance Data Exchange Agreement
Vehicle OwnerBasic Vehicle Owner Expectation of Data Provision
Vehicle OwnerBasic Vehicle User Service Usage Agreement
Vehicle OwnerDriver Application Usage Agreement
Vehicle OwnerDriver Vehicle Operating Agreement
Vehicle OwnerMulti-Access Edge Computing Maintainer Maintenance Data Exchange Agreement
Vehicle OwnerMulti-Access Edge Computing Operator Application Usage Agreement
Vehicle OwnerMulti-Access Edge Computing Owner Expectation of Data Provision
Vehicle OwnerMulti-Access Edge Computing User Service Usage Agreement
Vehicle OwnerOther Vehicle OBEs Operator Application Usage Agreement
Vehicle OwnerOther Vehicle OBEs Operator Vehicle Operating Agreement
Vehicle OwnerOther Vehicles Maintainer Maintenance Data Exchange Agreement
Vehicle OwnerOther Vehicles Owner Expectation of Data Provision
Vehicle OwnerOther Vehicles User Service Usage Agreement
Vehicle OwnerVehicle Maintainer System Maintenance Agreement
Vehicle OwnerVehicle Manager Operations Agreement
Vehicle SupplierVehicle Owner Warranty

Functional

This service package includes the following Functional View PSpecs:

Physical Object Functional Object PSpec Number PSpec Name
ITS Roadway Equipment Roadway Signal Control 1.1.1.1 Process Traffic Sensor Data
1.2.7.1.1 Process Indicator Output Data for Roads
1.2.7.1.2 Manage Local Signal Priority and Preemption Requests
1.2.7.1.3 Provide Device Interface for Field Management Stations
1.2.7.1.4 Process Signal Control Conflict Monitoring
1.2.7.2.1 Monitor Roadside Equipment Operation
1.2.7.2.4 Provide Device Interface to Other Roadway Devices
Multi-Access Edge Computing MEC Intersection Safety 1.1.1.6 Collect Vehicle Roadside Safety Data
1.1.2.6 Process Collected Vehicle Safety Data
1.2.7.3.1 Process In-vehicle Signage Data
1.2.7.3.2 Process Vehicle Safety and Environmental Data for Output
1.2.7.3.5 Process Intersection Safety Data
Traffic Management Center TMC Intersection Safety 1.1.2.2 Process Traffic Data
1.1.4.2 Provide Traffic Operations Personnel Traffic Data Interface
1.2.2.2 Determine Indicator State for Road Management
1.2.4.1 Output Control Data for Roads
1.2.4.7 Manage Roadway Warning System
1.2.8 Collect Traffic Field Equipment Fault Data
TMC Signal Control 1.1.2.2 Process Traffic Data
1.1.2.5 Process Vehicle Situation Data
1.1.4.1 Retrieve Traffic Data
1.1.4.4 Manage Traffic Archive Data
1.1.5 Exchange Data with Other Traffic Centers
1.2.1 Select Strategy
1.2.2.2 Determine Indicator State for Road Management
1.2.4.1 Output Control Data for Roads
1.2.6.1 Maintain Traffic and Sensor Static Data
1.2.8 Collect Traffic Field Equipment Fault Data
Vehicle Vehicle Basic Safety Communication 3.1.1 Produce Collision and Crash Avoidance Data
3.1.3 Process Vehicle On-board Data
3.1.4 Communicate with Remote Vehicles
3.1.6 Provide Vehicle Acceleration and Deceleration Inputs
3.2.3.2 Manage Platoon Following
3.2.3.3 Process Data for Vehicle Actuators
3.2.3.5.1 Process General Vehicle Sensor Data
3.2.4 Process Sensor Data for Automatic Vehicle Operations
6.7.1.3 Process Vehicle Location Data
6.7.1.4 Update Vehicle Navigable Map Database
6.7.3.2 Provide Driver Information Interface
Vehicle Control Automation 3.2.3.3 Process Data for Vehicle Actuators
3.2.3.4.1 Provide Servo Control
3.2.3.4.2 Provide Vehicle Control Data Interface
Vehicle Control Warning 3.1.1 Produce Collision and Crash Avoidance Data
3.1.3 Process Vehicle On-board Data
3.2.3.3 Process Data for Vehicle Actuators
3.2.3.5.1 Process General Vehicle Sensor Data
6.7.3.2 Provide Driver Information Interface
Vehicle Intersection Movement 3.1.1 Produce Collision and Crash Avoidance Data
3.1.2 Carry-out Safety Analysis
3.1.3 Process Vehicle On-board Data
3.1.4 Communicate with Remote Vehicles
3.1.6 Provide Vehicle Acceleration and Deceleration Inputs
3.2.1 Provide Driver Interface
3.2.3.1 Provide Command Interface
3.2.3.3 Process Data for Vehicle Actuators
3.2.3.5.1 Process General Vehicle Sensor Data
3.2.4 Process Sensor Data for Automatic Vehicle Operations
3.3.2 Build Automatic Collision Notification Message
6.7.1.3 Process Vehicle Location Data
6.7.1.4 Update Vehicle Navigable Map Database
6.7.3.1 Provide Driver with Personal Travel Information
6.7.3.2 Provide Driver Information Interface

Physical

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Includes Physical Objects:

Physical Object Class Description
Basic Vehicle Vehicle 'Basic Vehicle' represents a complete operating vehicle. It includes the vehicle platform that interfaces with and hosts ITS electronics and all of the driver convenience and entertainment systems, and other non-ITS electronics on-board the vehicle. Interfaces represent both internal on-board interfaces between ITS equipment and other vehicle systems and other passive and active external interfaces or views of the vehicle that support vehicle/traffic monitoring and management. External interfaces may also represent equipment that is carried into the vehicle (e.g., a smartphone that is brought into the vehicle). Internal interfaces are often implemented through a vehicle databus, which is also included in this object. Note that 'Vehicle' represents the general functions and interfaces that are associated with personal automobiles as well as commercial vehicles, emergency vehicles, transit vehicles, and other specialized vehicles.
Driver Vehicle The 'Driver' represents the person that operates a vehicle on the roadway. Included are operators of private, transit, commercial, and emergency vehicles where the interactions are not particular to the type of vehicle (e.g., interactions supporting vehicle safety applications). The Driver originates driver requests and receives driver information that reflects the interactions which might be useful to all drivers, regardless of vehicle classification. Information and interactions which are unique to drivers of a specific vehicle type (e.g., fleet interactions with transit, commercial, or emergency vehicle drivers) are covered by separate objects.
ITS Roadway Equipment Field 'ITS Roadway Equipment' represents the ITS equipment that is distributed on and along the roadway that monitors and controls traffic and monitors and manages the roadway. This physical object includes traffic detectors, environmental sensors, traffic signals, highway advisory radios, dynamic message signs, CCTV cameras and video image processing systems, grade crossing warning systems, and ramp metering systems. Lane management systems and barrier systems that control access to transportation infrastructure such as roadways, bridges and tunnels are also included. This object also provides environmental monitoring including sensors that measure road conditions, surface weather, and vehicle emissions. Work zone systems including work zone surveillance, traffic control, driver warning, and work crew safety systems are also included.
Multi-Access Edge Computing Field 'Multi-Access Edge Computing' ((MEC) previously known as mobile edge computing) represents computing devices that operate and are managed like a cloud server, but are deployed at the edge of a network (typically a cellular network, but it could be any network). While not in strict proximity to the transportation network, these systems do benefit from vastly decreased distances to the roadway compared to central systems, and so can provide lower latency than strictly backoffice systems
Other Vehicles Vehicle 'Other Vehicle OBEs' represents other connected vehicles that are communicating with the host vehicle. This includes all connected motorized vehicles including passenger cars, trucks, and motorcycles and specialty vehicles (e.g., maintenance vehicles, transit vehicles) that also include the basic 'Vehicle OBE' functionality that supports V2V communications. This object provides a source and destination for information transfers between connected vehicles. The host vehicle on-board equipment, represented by the Vehicle OBE physical object, sends information to, and receives information from the Other Vehicle OBEs to model all connected vehicle V2V communications in ARC-IT.
Potential Obstacles Field 'Potential Obstacles' represents any object that possesses the potential of being sensed and struck and thus also possesses physical attributes. Potential Obstacles include roadside obstructions, debris, animals, infrastructure elements (barrels, cones, barriers, etc.) or any other element that is in a potential path of the vehicle. Note that roadside objects and pieces of equipment that can become obstacles in a vehicle’s path can include materials, coatings, or labels (e.g., barcodes) that will improve the performance of the vehicle-based sensors that must detect and avoid these obstacles. See also 'Vulnerable Road Users' that more specifically represents the physical properties of shared users of the roadway that must also be detected.
Roadway Environment Field 'Roadway Environment' represents the physical condition and geometry of the road surface, markings, signs, and other objects on or near the road surface. It also represents the environmental conditions immediately surrounding the roadway. The roadway environment must be sensed and interpreted to support automated vehicle services. Surrounding conditions may include fog, ice, snow, rain, wind, etc. which will influence the way in which a vehicle can be safely operated on the roadway. The roadway environment must be monitored to enable corrective action and information dissemination regarding roadway conditions which may adversely affect travel. Infrastructure owner/operators can improve the roadway environment to improve the performance and accuracy of vehicle-based sensors that must sense and interpret this environment. Improvements could include changes in the shape, size, design, and materials used in signs, pavement markings, and other road features.
Traffic Management Center Center The 'Traffic Management Center' monitors and controls traffic and the road network. It represents centers that manage a broad range of transportation facilities including freeway systems, rural and suburban highway systems, and urban and suburban traffic control systems. It communicates with ITS Roadway Equipment and Connected Vehicle Roadside Equipment (RSE) to monitor and manage traffic flow and monitor the condition of the roadway, surrounding environmental conditions, and field equipment status. It manages traffic and transportation resources to support allied agencies in responding to, and recovering from, incidents ranging from minor traffic incidents through major disasters.
Vehicle Vehicle This 'Vehicle' physical object is used to model core capabilities that are common to more than one type of Vehicle. It provides the vehicle-based general sensory, processing, storage, and communications functions that support efficient, safe, and convenient travel. Many of these capabilities (e.g., see the Vehicle Safety service packages) apply to all vehicle types including personal vehicles (including motorcycles), commercial vehicles, emergency vehicles, transit vehicles, and maintenance vehicles. From this perspective, the Vehicle includes the common interfaces and functions that apply to all motorized vehicles. The radio(s) supporting V2V and V2I communications are a key component of the Vehicle. Both one-way and two-way communications options support a spectrum of information services from basic broadcast to advanced personalized information services. Advanced sensors, processors, enhanced driver interfaces, and actuators complement the driver information services so that, in addition to making informed mode and route selections, the driver travels these routes in a safer and more consistent manner. This physical object supports all six levels of driving automation as defined in SAE J3016. Initial collision avoidance functions provide 'vigilant co-pilot' driver warning capabilities. More advanced functions assume limited control of the vehicle to maintain lane position and safe headways. In the most advanced implementations, this Physical Object supports full automation of all aspects of the driving task, aided by communications with other vehicles in the vicinity and in coordination with supporting infrastructure subsystems.
Vehicle Characteristics Vehicle 'Vehicle Characteristics' represents the external view of individual vehicles of any class from cars and light trucks up to large commercial vehicles and down to micromobility vehicles (MMVs). It includes vehicle physical characteristics such as height, width, length, weight, and other properties (e.g., magnetic properties, number of axles, occupants, emissions) of individual vehicles that can be sensed and measured or classified. This physical object represents the physical properties of vehicles that can be sensed by vehicle-based or infrastructure-based sensors to support vehicle automation and traffic sensor systems. The analog properties provided by this terminator represent the sensor inputs that are used to detect and assess vehicle(s) within the sensor's range to support safe AV operation and/or responsive and safe traffic management.
Vulnerable Road Users Personal 'Vulnerable Road Users' represents any roadway user not in a motorized vehicle capable of operating at the posted speed for the roadway in question, and also any roadway user in a vehicle not designed to encase (and thus protect) its occupants. This includes pedestrians, cyclists, wheelchair users, two-wheeled scooter micromobility users, as well as powered scooters and motorcycles. Note that this terminator represents the physical properties of vulnerable road users and their conveyance that may be sensed to support safe vehicle automation and traffic management in mixed mode applications where a variety of road users share the right-of-way. See also 'Pedestrian' and 'MMV User' Physical Objects that represent the human interface to these vulnerable road users.

Includes Functional Objects:

Functional Object Description Physical Object
MEC Intersection Safety 'MEC Intersection Safety' uses cellular communications to support connected vehicle applications that improve intersection safety. It communicates with nearby vehicles and ITS infrastructure to alert and warn drivers of potential stop sign, red light, and non-motorized user crossing conflicts or violations. There may be constraints related to performance related to communications with participants using network operators foreign to the MEC. Multi-Access Edge Computing
Roadway Signal Control 'Roadway Signal Control' includes the field elements that monitor and control signalized intersections. It includes the traffic signal controllers, detectors, conflict monitors, signal heads, and other ancillary equipment that supports traffic signal control. It also includes field masters, and equipment that supports communications with a central monitoring and/or control system, as applicable. The communications link supports upload and download of signal timings and other parameters and reporting of current intersection status. It represents the field equipment used in all levels of traffic signal control from basic actuated systems that operate on fixed timing plans through adaptive systems. It also supports all signalized intersection configurations, including those that accommodate pedestrians. In advanced, future implementations, environmental data may be monitored and used to support dilemma zone processing and other aspects of signal control that are sensitive to local environmental conditions. ITS Roadway Equipment
TMC Intersection Safety 'TMC Intersection Safety' controls and monitors RSEs that support stop sign, red light, and mixed use crossing violations. It configures the RSEs for the current intersection geometry and traffic signal control equipment at the intersection. Information that is currently being communicated to passing vehicles and the operational status of the field equipment is monitored by this application. The operational status of the field equipment is reported to operations personnel. Traffic Management Center
TMC Signal Control 'TMC Signal Control' provides the capability for traffic managers to monitor and manage the traffic flow at signalized intersections. This capability includes analyzing and reducing the collected data from traffic surveillance equipment and developing and implementing control plans for signalized intersections. Control plans may be developed and implemented that coordinate signals at many intersections under the domain of a single Traffic Management Center and are responsive to traffic conditions and adapt to support incidents, preemption and priority requests, pedestrian crossing calls, etc. This may include adaptive traffic control systems (ATCS) that adjust signal timings based on traffic conditions, demand, and system capacity. It also supports all signalized intersection configurations, including those that accommodate pedestrians. Traffic Management Center
Vehicle Basic Safety Communication 'Vehicle Basic Safety Communication' exchanges current vehicle characteristics, location, and motion (including past and intended maneuver) information with other vehicles in the vicinity and the infrastructure, uses that information to calculate vehicle paths, and warns the driver when the potential for an impending collision is detected. If available, map data is used to filter and interpret the relative location and motion of vehicles in the vicinity. Information from on-board sensors (e.g., radars and image processing) are also used, if available, in combination with the V2V communications to detect non-equipped vehicles and corroborate connected vehicle data. This object represents a broad range of implementations ranging from basic Vehicle Awareness Devices that only broadcast vehicle location and motion and provide no driver warnings to advanced integrated safety systems that coordinate maneuvers and may, in addition to warning the driver, provide collision warning information to support automated control functions that can support control intervention. This object can also support broadcasting other vehicle information required for passing through a specific roadway segment such as variables that describe vehicle's characteristics and parameters, driver's preferences in terms of vehicle motion and behavior, etc. Vehicle
Vehicle Control Automation 'Vehicle Control Automation' provides lateral and/or longitudinal control of a vehicle to allow 'hands off' and/or 'feet off' driving, automating the steering, accelerator, and brake control functions. It builds on the sensors included in 'Vehicle Safety Monitoring' and 'Vehicle Control Warning', receives warnings from 'Vehicle Intersection Movement', and uses the information about the area surrounding the vehicle to safely control the vehicle. It covers the range of incremental control capabilities from driver assistance systems that take over steering or acceleration/deceleration in limited scenarios with direct monitoring by the driver to full automation where all aspects of driving are automated under all roadway and environmental conditions, including providing, receiving, and acting on cooperation-related messaging. Vehicle
Vehicle Control Warning 'Vehicle Control Warning' monitors areas around the vehicle and provides warnings to a driver so the driver can take action to recover and maintain safe control of the vehicle. It includes lateral warning systems that warn of lane departures and obstacles or vehicles to the sides of the vehicle and longitudinal warning systems that monitor areas in the vehicle path and provide warnings when headways are insufficient or obstacles are detected in front of or behind the vehicle. It includes on-board sensors, including radars and imaging systems, and the driver information system that provides the visual, audible, and/or haptic warnings to the driver. Vehicle
Vehicle Intersection Movement 'Vehicle Intersection Movement' uses short-range wireless communications to monitor other connected vehicles at intersections and support the safe movement of the vehicle through the intersection by receiving and processing signal phase and timing messages from the intersection. Driver warnings are provided and the application may also optionally take control of the vehicle to avoid collisions, in coordination with Vehicle Control Automation. The application will also notify the infrastructure and other vehicles if it detects an unsafe infringement on the intersection. Vehicle

Includes Information Flows:

Information Flow Description
conflict monitor status A control flow that supports failsafe operation in the event that a conflict is detected that requires the RSE to enter a failsafe operating mode for intersection management. Analogous to a traffic signal conflict monitor, this flow is issued when differences are detected between information provided to the vehicle for in-vehicle display and information displayed by field devices. It contains the details of differences that were found.
driver information Regulatory, warning, guidance, and other information provided to the driver to support safe and efficient vehicle operation.
driver input Driver input to the vehicle on-board equipment including configuration data, settings and preferences, interactive requests, and control commands.
driver update information Information provided to the driver-vehicle interface to inform the driver about current conditions, potential hazards, and the current status of vehicle on-board equipment. The flow includes the information to be presented to the driver and associated metadata that supports processing, prioritization, and presentation by the DVI as visual displays, audible information and warnings, and/or haptic feedback.
driver updates Information provided to the driver including visual displays, audible information and warnings, and haptic feedback. The updates inform the driver about current conditions, potential hazards, and the current status of vehicle on-board equipment.
host vehicle status Information provided to the ITS on-board equipment from other systems on the vehicle platform. This includes the current status of the powertrain, steering, and braking systems, and status of other safety and convenience systems. In implementations where GPS is not integrated into the Vehicle On-Board Equipment, the host vehicle is also the source for data describing the vehicle's location in three dimensions (latitude, longitude, elevation) and accurate time that can be used for time synchronization across the ITS environment.
intersection control status Status data provided by the traffic signal controller including phase information, alarm status, and priority/preempt status.
intersection geometry 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 detection Notification of a detected unpermitted movement at an intersection such as a stop sign violation or running a red light.
intersection infringement info Vehicle path information sent by a vehicle that is performing an unpermitted movement at an intersection such as a stop sign violation or running a red light. This also includes information about possible conflicts with other road users in the vehicle's path, including a range of uncontrolled intersection scenarios that could be covered by this flow. This flow does not include permanent ids; only temporary ones that allow monitoring of the vehicle as it moves across the intersection.
intersection safety application info Intersection and device configuration data, including intersection geometry, and warning parameters and thresholds. This flow also supports remote control of the application so the application can be taken offline, reset, or restarted.
intersection safety application status Infrastructure safety application status reported by the RSE. This includes current operational state and status of the RSE and a record of intersection safety issues identified and alerts and warnings issued.
intersection safety warning 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 and personal devices near the intersection receive the warning.
intersection status 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. It may also include future signal phase and timing information.
intersection status monitoring Current signal phase and timing information for all lanes at a signalized intersection. This flow represents monitoring of communications by a receiver at the intersection to support monitoring for conflicts between actual signal states and RSE communications about those states.
physical presence Detection of an obstacle. Obstacle could include animals, incident management and construction elements such as cones, barrels and barriers, internal structures such as pillars and poles, rocks in roadway, etc.
roadway characteristics Detectable or measurable road characteristics such as friction coefficient and general surface conditions, road geometry, signs and indicators (e.g., speed limits, parking availability) and markings, etc. These characteristics are monitored or measured by ITS sensors and used to support advanced vehicle safety, parking, turning and lane change maneuvers and road maintenance capabilities.
signal control commands Control of traffic signal controllers or field masters including clock synchronization.
signal control status Operational and status data of traffic signal control equipment including operating condition and current indications.
vehicle characteristics The physical or visible characteristics of individual vehicles that can be used to detect, classify, and monitor vehicles and imaged to uniquely identify vehicles and characterize their performance (e.g., speed, occupants, emissions).
vehicle control Control commands issued to vehicle actuators that control steering, throttle, and braking and other related commands that support safe transition between manual and automated vehicle control. This flow can also deploy restraints and other safety systems when a collision is unavoidable.
vehicle location and motion Data describing the vehicle's location in three dimensions, heading, speed, acceleration, braking status, and size.
vulnerable road user presence Detection of pedestrians, cyclists, and other vulnerable road users. This detection is based on physical characteristics of the user and their conveyance, which may be enhanced by design and materials that facilitate sensor-based detection and tracking of vulnerable road users.

Goals and Objectives

Associated Planning Factors and Goals

Planning Factor Goal
B. Increase the safety of the transportation system for motorized and nonmotorized users; Reduce fatalities and injuries
G. Promote efficient system management and operation; Improve efficiency
I. Improve the resiliency and reliability of the transportation system and reduce or mitigate stormwater impacts of surface transportation; Improve resiliency and reliability

Associated Objective Categories

Objective Category
Arterial Management: Reliability
Safety: Vehicle Crashes and Fatalities
System Reliability: Non-Recurring Delay

Associated Objectives and Performance Measures

Objective Performance Measure
Reduce buffer index on arterials during peak and off-peak periods by X percent in Y years. The buffer index (represents the extra time (buffer) travelers add to their average travel time when planning trips in order to arrive on-time 95 percent of the time).
Reduce crashes at intersections Number of crashes and fatalities at signalized intersections
Reduce crashes at intersections Number of crashes and fatalities at unsignalized intersections
Reduce crashes at intersections Number of crashes and fatalities related to red-light running
Reduce crashes due to driver errors and limitations Number of crashes and fatalities related to driver inattention and distraction
Reduce crashes due to driver errors and limitations Number of crashes and fatalities related to driving while intoxicated
Reduce crashes due to red-light running Number of crashes and fatalities related to red-light running
Reduce crashes due to unsafe drivers, vehicles and cargo on the transportation system Number of crashes and fatalities due to commercial vehicle safety violations
Reduce delay associated with incidents on arterials by X percent by year Y. Hours of delay associated with incidents.
Reduce the number of motorcyclist fatalities by X percent by year Y. Number of motorcyclist fatalities
Reduce the number of pedestrian fatalities by X percent by year Y. Number of pedestrian fatalities
Reduce the number of speeding-related fatalities by X percent by year Y. Number of speeding-related fatalities
Reduce the rate fatalities in the region by X percent by year Y. Rate of fatalities (rate per vehicle miles travelled (VMT))
Reduce the rate of severe injuries in the region by X percent by year Y. Rate of serious injuries (rate per VMT)
Reduce the total number of crashes in the region by X percent by year Y. Total crashes per X VMT.
Reduce the total number of crashes involving bicyclists and pedestrians in the region by X percent by year Y. Total crashes involving bicycles.
Reduce the total number of crashes involving bicyclists and pedestrians in the region by X percent by year Y. Total crashes involving pedestrians.
Reduce the total number of fatalities and severe injuries in the region by X percent by year Y. Total fatalities per X VMT.
Reduce the total number of fatalities and severe injuries in the region by X percent by year Y. Total severe injuries per X VMT.
Reduce the total number of fatalities in the region by X percent by year Y. Number of fatalities
Reduce the total number of severe injuries in the region by X percent by year Y. Number of serious injuries
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by all transient events such as traffic incidents, special events, and work zones. Total person hours of delay during scheduled and/or unscheduled disruptions to travel.
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by unscheduled disruptions to travel. Total person hours of delay during scheduled and/or unscheduled disruptions to travel.

 
Since the mapping between objectives and service packages is not always straight-forward and often situation-dependent, these mappings should only be used as a starting point. Users should do their own analysis to identify the best service packages for their region.

Needs and Requirements

Need Functional Object Requirement
01 Traffic Operations needs to be able to send to Connected Vehicles intersection signal timing information in order for the vehicle to determine if it will safely cross the intersection given its current speed and location. Roadway Signal Control 09 The field element shall report current intersection signal timing information to roadside equipment for transmission to connected vehicles.
TMC Intersection Safety 05 The field element shall be capable of configuring roadside equipment to perform the collection and transmission of information to support intersection safety.
TMC Signal Control 09 The center shall implement control plans to coordinate signalized intersections based on data from sensors and connected vehicles.
Vehicle Intersection Movement 03 The vehicle shall receive intersection signal timing information in order for the vehicle to determine if it will safely cross the intersection given its current location and speed.
02 Traffic Operations needs to be able to warn vehicles if an intersection violation appears to be imminent. MEC Intersection Safety 03 The roadway equipment shall collect vehicle path information sent by a vehicle.
Vehicle Basic Safety Communication 06 The vehicle shall exchange location and motion information with roadside equipment and nearby vehicles.
Vehicle Intersection Movement 01 The vehicle shall provide vehicle path information to identify if vehicle is performing an unpermitted movement at an intersection such as a stop sign violation or running a red light.
05 The vehicle shall receive warning from the infrastructure if an intersection violation appears to be imminent.
03 Drivers need to be able receive warnings if, based on information received from the intersection, it looks like the vehicle will go through the intersection after the signal has turned red in order to reduce the occurrence of intersection violations. Vehicle Control Warning 04 The vehicle shall present vehicle control warnings information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner.
Vehicle Intersection Movement 06 The vehicle shall provide to the driver a warning if it looks like the vehicle will go through the intersection after the signal has turned red.
04 Drivers need the vehicle to be able to take automated control actions if it looks like an unsafe situation occurs as the vehicle is approaching an intersection. Vehicle Control Automation 04 The vehicle shall collect location and motion data from the vehicle platform.
09 The vehicle shall send appropriate control actions to the vehicle's steering actuators.
15 The vehicle shall be capable of performing control actions based upon information received from the infrastructure regarding the status of the intersection the vehicle is approaching.
16 The vehicle shall be capable of performing control actions based upon information received from other vehicles regarding their status. This includes intersection-related status, maneuver coordination, and other status information received from vehicles in the vicinity.
Vehicle Control Warning 09 The vehicle shall collect location and motion data from the vehicle platform.

Related Sources

Document Name Version Publication Date
None


Security

In order to participate in this service package, each physical object should meet or exceed the following security levels.

Physical Object Security
Physical Object Confidentiality Integrity Availability Security Class
Basic Vehicle  
ITS Roadway Equipment Moderate High Moderate Class 3
Multi-Access Edge Computing Moderate High Moderate Class 3
Other Vehicles Low High Moderate Class 3
Potential Obstacles  
Roadway Environment Not Applicable Low Low Class 1
Traffic Management Center Moderate High Moderate Class 3
Vehicle Low High Moderate Class 3
Vehicle Characteristics  
Vulnerable Road Users  



In order to participate in this service package, each information flow triple should meet or exceed the following security levels.

Information Flow Security
Source Destination Information Flow Confidentiality Integrity Availability
Basis Basis Basis
Basic Vehicle Vehicle host vehicle status Low Moderate High
Unlikely that this includes any information that could be used against the originator. This can be MODERATE or HIGH, depending on the application: This is used later on to determine whether a vehicle is likely going to violate a red light or infringe a work zone. This needs to be correct in order for the application to work correctly. Since this monitors the health and safety of the vehicle and that information is eventually reported to the driver, it should be available at all times as it directly affects vehicle and operator safety.
Driver Vehicle driver input Moderate High High
Data included in this flow may include origin and destination information, which should be protected from other's viewing as it may compromise the driver's privacy. Commands from from the driver to the vehicle must be correct or the vehicle may behave in an unpredictable and possibly unsafe manner Commands must always be able to be given or the driver has no control.
ITS Roadway Equipment Driver driver information Not Applicable High Moderate
This data is sent to all drivers and is also directly observable, by design. This is the primary signal trusted by the driver to decide whether to go through the intersection and what speed to go through the intersection at; if it’s wrong, accidents could happen. If the lights are out you have to get a policeman to direct traffic – expensive and inefficient and may cause a cascading effect due to lack of coordination with other intersections.
ITS Roadway Equipment Multi-Access Edge Computing conflict monitor status Moderate High Moderate
Trains arriving should be visible, viewable and certainly not concealed. Reception of this information may indicate position or intended position of the recipient, which is slightly sensitive; thus LOW and not N/A is typically justified. However, all communications between field infrastructure should be protected from viewing to prevent attackers from analyzing traffic and developing attack methods. If this is compromised, it could send incorrect data to the RSE. Since the data contained herein directly affects human safety, the RSE may react to modify its outputs, at the least disabling related outputs. if compromised, the ITS RE may not be able to support failsafe operating mode in the event of a conflict between the ITS RE and RSE. May not be ‘High’ because the signal state is also present. From NYC: This flow tells the RSE that the traffic controller is in a failed state – typically flashing signals not timing. A delay in reporting this may allow the RSE to distribute faulty information, but that information is contradicted by the signal state. Since there are multiple pathways for the information to be obtained, this is not ‘High.’
ITS Roadway Equipment Multi-Access Edge Computing intersection control status Moderate High Moderate
This data is intentionally transmitted to everyone via a While this information is broadcast and can also be determined via other visual indicators, all communications between field infrastructure should be protected from viewing to prevent attackers from analyzing traffic and developing attack methods. If this is compromised, the Roadway Equipment and Roadside Equipment will be sending messages that are inconsistent with each other, leading to confusion and possible accidents. If this is down, the RSE doesn’t get the information it needs to stay in synch with the actual signal state, reducing or eliminating the value add from having this application. The RSE must detect a lack of availability and choose not to send out-of-date information, so a failure of availability could be interpreted as having the same value as Integrity. However, this data is semi-predictable and there are other indicators (such as the lights themselves) of the intersection status. From NYC, who believe this should be HIGH for some applications: If this is down, the RSE doesn’t get the information it needs to stay in synch with the actual signal state, reducing or eliminating the value add from having this application. The RSE must detect a lack of availability and choose not to send out-of-date information, so a failure of availability cannot have worse consequences than a failure of integrity which we have previously assessed at HIGH.
ITS Roadway Equipment Multi-Access Edge Computing intersection infringement detection Moderate High Moderate
This data is intentionally transmitted to everyone via a While this information is broadcast and can also be determined via other visual indicators, all communications between field infrastructure should be protected from viewing to prevent attackers from analyzing traffic and developing attack methods. This message is an indication of a potential hazard and should not be easy to forge. False messages here may lead to confusion that causes a traffic accident. This message is an indication of a potential hazard. If it isn’t received it increases the risk to other road users. If a vehicle is infringing on an intersection, it must report this.
ITS Roadway Equipment Traffic Management Center signal control status Low High Moderate
The current conditions of an ITS RE are completely observable, by design. This influences the TMC response to a right-of-way request. It should be as accurate as the right-of-way request themselves. For some applications (ISIG) this need only be moderate. Per THEA: info needs to be accurate and should not be tampered to enable effective monitoring and control by the TMC. DISC: THEA believes this to be MODERATE: "info needs to be accurate and should not be tampered to enable effective monitoring and control by the TMC; should be as accurate as the right of way request". NYC:TMC doesn’t play an active role in this application, i.e. even if the information contained in this flow were incorrect, it is unlikely to affect the outcome of this application one way or the other. On some applications NYC has this MODERATE though. RES: This value can obviously change a lot depending on the application context. The TMC will need the current status of the ITS RE in order to make an educated decision. If it is unavailable, the system is unable to operate. However, a few missed messages will not have a catastrophic impact. From NYC: TMC doesn’t play an active role in this application, i.e. even if it is unavailable, it is unlikely to affect the outcome of this application one way or the other. RES: This value can change a lot depending on the application context.
Multi-Access Edge Computing ITS Roadway Equipment intersection infringement info Moderate High Moderate
This data is intentionally transmitted to everyone via a While this information is broadcast and can also be determined via other visual indicators, all communications between field infrastructure should be protected from viewing to prevent attackers from analyzing traffic and developing attack methods. This message is an indication of a potential hazard and should not be easy to forge. False messages here may lead to confusion that causes a traffic accident. This message is an indication of a potential hazard. If it isn’t received it increases the risk to other road users. If a vehicle is infringing on an intersection, it must report this.
Multi-Access Edge Computing ITS Roadway Equipment intersection status monitoring Moderate High Moderate
This data is intentionally transmitted to everyone via a While this information can be ascertained by examining signal states, all communications between field infrastructure should be protected from viewing to prevent attackers from analyzing traffic and developing attack methods. If this is compromised, the RSE could send incorrect data to the Roadway Equipment. Since the data contained herein directly affects human safety, the Roadway Equipment may react to tell the RSE it is in conflict, which in turn may result in the RSE modifying or disabling its outputs. DISC THEA: info needs to be accurate and should not be tampered so the ITS RE has correct SPaT info for all lanes to be able to detect conflicts and support failsafe operating mode. DISC: THEA belives this may be HIGH for ISIG. NYC also believes this to be HIGH for PED-SIG. A delay in reporting this may allow the RSE to distribute faulty information, but that information is contradicted by the signal state. Since there are multiple pathways for the information to be obtained, this is not ‘High.
Multi-Access Edge Computing Traffic Management Center intersection safety application status Moderate Moderate Low
This information could be of interest to a malicious individual who is attempting to determine the best way to accomplish a crime. As such it would be best to not make it easily accessible. DISC: THEA and NYC believe this may be LOW for some applications If this is compromised, it could send unnecessary maintenance workers, or cause the appearance of excessive traffic violations, leading to further unnecessary investigation. NYC: should be able to cope with some bad information on the status and record of alerts/warnings; aggregate info; however could cause appearance of excessive traffic violations or unnecessary maintenance caused if data is compromised A delay in reporting this may cause a delay in necessary maintenance, but (a) this is not time-critical and (b) there are other channels for reporting malfunctioning. Additionally, there is a message received notification, which means that RSE can ensure that all intersection safety issues are delivered.
Multi-Access Edge Computing Vehicle intersection geometry Low High Moderate
Map data intended for general use by any C-ITS component than needs it. No information here includes PII or anything else that, if viewed by someone other than the participant, would lead to harm. Map data is used for a host of application purposes. This widespread use means that any corruption in the data has a widespread and far reaching effect. Occasional outages of this flow will delay updates and lead to a loss of accurate function of some applications. Depending on the application this could be HIGH.
Multi-Access Edge Computing Vehicle intersection safety warning Not Applicable High Moderate
This data is intentionally transmitted to everyone via a broadcast. It can also be determined via other visual indicators. This message is broadcast as a warning, allowing infringing drivers to avoid a collision with a pedestrian and all other drivers to avoid the infringing driver. If this message is falsely broadcast it could cause drivers who think they may be infringing to break suddenly, increasing the chance of a collisions from behind. If it were constantly broadcast incorrectly, it may lead to drivers ignoring this notifications. All of these cases have an impact on safety. NYC believes some scenarios may only require MODERATE, but some do require HIGH. This message has a very short window in which it is valid. If it is not delivered until after the driver has passed the point of no return before entering the crosswalk, they will not gain any information from it, rendering the application useless.
Multi-Access Edge Computing Vehicle intersection status Not Applicable High Moderate
This data is distributed using a variety of mechanisms, some of which are localized broadcast; it is desireable that all potential users get this information. If this flow is not accurate or delivered in a timely fashion then a large variety of mobility and safety services that depend on it will not work properly. If this flow is not accurate or delivered in a timely fashion then a large variety of mobility and safety services that depend on it will not work properly.
Other Vehicles Vehicle intersection infringement info Low High Moderate
This data is intentionally transmitted to everyone via a broadcast. It can also be determined via other visual indicators. This message is an indication of a potential hazard and should not be easy to forge. False messages here may lead to confusion that causes a traffic accident. This message is an indication of a potential hazard. If it isn’t received it increases the risk to other road users. If a vehicle is infringing on an intersection, it must report this.
Potential Obstacles Vehicle physical presence
Roadway Environment Vehicle roadway characteristics Not Applicable Low Low
Sensor-based information flows by definition have no confidentiality concerns. While typically security concerns related to sensing ignored, if considered this would be LOW, as the obfuscation or failure of any given environmental sensor is likely to be overcome by the mass of data necessary to draw environmental concluisions. While typically security concerns related to sensing ignored, if considered this would be LOW, as the obfuscation or failure of any given environmental sensor is likely to be overcome by the mass of data necessary to draw environmental concluisions.
Traffic Management Center ITS Roadway Equipment signal control commands Moderate High Moderate
Control flows, even for seemingly innocent devices, should be kept confidential to minimize attack vectors. While an individual installation may not be particularly impacted by a cyberattack of its sensor network, another installation might be severely impacted, and different installations are likely to use similar methods, so compromising one leads to compromising all. DISC: NYC believes this to be LOW: "The result of this will be directly observable." Invalid messages could lead to an unauthorized user gaining control of an intersection. This could also be used to bring traffic to a standstill, which could lead to a large financial impact on the community. DISC: NYC believes this to be MODERATE: The signal timing is critical to the intersection operation; incorrect signal timing can lead to significant congestion and unreliable operation; while unsafe operation is controlled by the cabinet monitoring system, attackers could “freeze” the signal or call a preemption. RES: This will vary depending on the application and implementation. These messages are important to help with preemption and signal priority applications. Without them, these applications mayl not work. However, if these signals are not received, the ITS RE will continue to function using its default configuration. The TMC should have an acknowledgement of the receipt of a message. DISC: NYC blieves this to be LOW: TMC doesn’t play an active role in this application, i.e. even if it is unavailable, it is unlikely to affect the outcome of this application one way or the other. RES: This will vary depending on the application and implementation.
Traffic Management Center Multi-Access Edge Computing intersection safety application info Moderate Moderate Low
This information could be of interest to a malicious individual who is attempting to determine the best way to accomplish a crime. As such it would be best to not make it easily accessible. May be LOW in some cases. If this is compromised, it could send unnecessary maintenance workers, or worse report plausible data that is erroneous. From THEA: should be able to cope with some bad information on the status and record of alerts/warnings; aggregate info; however could cause appearance of excessive traffic violations or unnecessary maintenance caused if data is compromised (operational state, status, log); should not affect the application functionality Incident status information should be presented in timely fashion as large scale mobility and safety issues are related. There are other mechanisms for reporting this information however, thus MODERATE. From THEA: Only limited adverse effect of info is not timely/readily available
Vehicle Basic Vehicle driver update information Low Moderate Moderate
This information is all presented to the vehicle operator. Encrypting this information may make it harder to reverse engineer vehicle systems, and may defeat criminal tracking tools when the vehicle has already been compromised. Unless those scenarios are of concern to the operator or manufacturer, this can safely be set LOW. Any information presented to the operator of a vehicle should be both accurate and timely. By definition this includes safety information, but given that the driver has other means of learning about most threats, it seems difficult to justify HIGH. If HIGH is warranted, it should apply to both availability and integrity. Any information presented to the operator of a vehicle should be both accurate and timely. By definition this includes safety information, but given that the driver has other means of learning about most threats, it seems difficult to justify HIGH. If HIGH is warranted, it should apply to both availability and integrity.
Vehicle Basic Vehicle vehicle control Moderate High High
Internal vehicle flow that if reverse engineered could enable third party vehicle control. Largely a competitive question, could be set LOW if manufacturer and operator are not concerned with this type of compromise. Includes vehicle control commands, which must be timely and accurate to support safe vehicle operation. Includes vehicle control commands, which must be timely and accurate to support safe vehicle operation.
Vehicle Driver driver updates Not Applicable Moderate Moderate
This data is informing the driver about the safety of a nearby area. It should not contain anything sensitive, and does not matter if another person can observe it. This is the information that is presented to the driver. If they receive incorrect information, they may act in an unsafe manner. However, there are other indicators that would alert them to any hazards, such as an oncoming vehicle or crossing safety lights. If this information is not made available to the driver, then the system has not operated correctly.
Vehicle Multi-Access Edge Computing intersection infringement info Low High Moderate
This data is intentionally transmitted to everyone via a broadcast. It can also be determined via other visual indicators. This message is an indication of a potential hazard and should not be easy to forge. False messages here may lead to confusion that causes a traffic accident. This message is an indication of a potential hazard. If it isn’t received it increases the risk to other road users. If a vehicle is infringing on an intersection, it must report this.
Vehicle Multi-Access Edge Computing vehicle location and motion Not Applicable High Moderate
This data is intentionally transmitted to everyone via a broadcast. Much of its information content can also be determined via other visual indicators Incorrect information could lead to the system not operating properly. If the system does not properly know where the vehicle is, it cannot make an accurate decision about whether there is going to be a pedestrian in the crosswalk that the vehicle is approaching. This can have a safety impact. This data is required for the system to operate properly. If this data is not available, the system cannot give accurate warning information.
Vehicle Other Vehicles intersection infringement info Low High Moderate
This data is intentionally transmitted to everyone via a broadcast. It can also be determined via other visual indicators. This message is an indication of a potential hazard and should not be easy to forge. False messages here may lead to confusion that causes a traffic accident. This message is an indication of a potential hazard. If it isn’t received it increases the risk to other road users. If a vehicle is infringing on an intersection, it must report this.
Vehicle Characteristics ITS Roadway Equipment vehicle characteristics
Vehicle Characteristics Vehicle vehicle characteristics
Vulnerable Road Users Vehicle vulnerable road user presence

Standards

The following table lists the standards associated with physical objects in this service package. For standards related to interfaces, see the specific information flow triple pages. These pages can be accessed directly from the SVG diagram(s) located on the Physical tab, by clicking on each information flow line on the diagram.

NameTitleKnown IssuesPhysical Object
ISO 15623 Fwd Collision Performance Intelligent transport systems -- Forward vehicle collision warning systems -- Performance requirements and test procedures Vehicle
ISO 24100 Probe Vehicle Data Protection Intelligent transport systems -- Basic principles for personal data protection in probe vehicle information services Traffic Management Center
ISO/SAE PAS 22736 Automation Taxonomy Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles Vehicle
ITE 5201 ATC Advanced Transportation Controller ITS Roadway Equipment
ITE 5202 ATC Model 2070 Model 2070 Controller Standard Out of date (high): Standard has been rescinded and is not recommended for use by the original issuing SDO. ITS Roadway Equipment
ITE 5301 ATC ITS Cabinet Intelligent Transportation System Standard Specification for Roadside Cabinets ITS Roadway Equipment
ITE 5401 ATC API Application Programming Interface Standard for the Advanced Transportation Controller ITS Roadway Equipment
NEMA TS 8 Cyber and Physical Security Cyber and Physical Security for Intelligent Transportation Systems ITS Roadway Equipment
Traffic Management Center
NEMA TS2 Traffic Controller Assemblies Traffic Controller Assemblies with NTCIP Requirements ITS Roadway Equipment
SAE J3016 Automation Taxonomy Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles Vehicle
SAE J3251 CDA Pedestrian Collision Avoidance Cooperative Driving Automation (CDA) Feature: Perception Status Sharing for Occluded Pedestrian Collision Avoidance Vehicle
SAE J3316 CDA Reference Architecture Draft not available (Critical): under development Vehicle
SAE J3361 Antenna requirements V2X Antenna Coverage and Test Requirements for US FHWA Class 1 and Class 3-13 Class Vehicles Draft not available (Critical): under development Vehicle
SAE J5001 OBU Standard Onboard Unit Standard for Connected Vehicles Draft not available (Critical): under development Vehicle




System Requirements

No System Requirements