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Railroad Crossing Violation Warning

The Railroad Crossing Violation Warning (RCVW) application will alert and/or warn drivers who are approaching an at-grade railroad crossing if they are on a crash-imminent trajectory to collide with a crossing or approaching train. This will be achieved through the integration of both vehicle-based and infrastructure-based technologies. The RSE sends to the vehicle detailed geometric information about the intersection, as well as information about whether a train is approaching or blocking the intersection. The geometric information could be obtained from an RSE at the intersection, or obtained from an RSE at some earlier point in the vehicles trip. The information about the approach or presence of a train would be obtained from the infrastructure via a connection between the rail infrastructure and the RSE. The information received from the RSE at the intersection could also be augmented with road surface information or other weather-related data. A more advanced version of the application could provide train arrival information or information about the amount of time the Highway Rail Intersection (HRI) will be blocked by the train.

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Enterprise

This is one way this application may be realized, but not the only way. There are other ways to build a given application and accomplish a stated objective.

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SVG Diagrams: Installation Operations Maintenance Certification
PNG Diagrams: Installation Operations Maintenance Certification

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Business Interaction Matrix:

Railroad Crossing Violation Warning Operations Stage
	Vehicle Owner	Driver	Vehicle OBE Owner	Roadway Owner	RSE Owner	RSE Operator	ITS Roadway Equipment Owner	ITS Roadway Operator	Traffic Manager	RSE Rail Crossing Warning Provider	Rail Operator	RSE Environmental Monitoring Provider	Vehicle Rail Crossing Warning Provider
Vehicle Owner		Vehicle Usage Agreement	Vehicle OBE Usage Agreement										Application Usage Agreement
Driver	Vehicle Usage Agreement		Expectation of Information Provision					Expectation of Information Provision
Vehicle OBE Owner	Vehicle OBE Usage Agreement	Expectation of Information Provision			Expectation of Information Provision
Roadway Owner					Service Delivery Agreement
RSE Owner			Expectation of Information Provision	Service Delivery Agreement		Operations Agreement	Information Exchange Agreement			Application Usage Agreement		Application Usage Agreement
RSE Operator					Operations Agreement						Information Exchange Agreement
ITS Roadway Equipment Owner					Information Exchange Agreement			Operations Agreement	Information Exchange Agreement		Information Exchange Agreement
ITS Roadway Operator		Expectation of Information Provision					Operations Agreement
Traffic Manager							Information Exchange Agreement
RSE Rail Crossing Warning Provider					Application Usage Agreement
Rail Operator						Information Exchange Agreement	Information Exchange Agreement
RSE Environmental Monitoring Provider					Application Usage Agreement
Vehicle Rail Crossing Warning Provider	Application Usage Agreement

Railroad Crossing Violation Warning Maintenance Stage
	Vehicle Owner	Vehicle OBE Manufacturer	Vehicle Manufacturer	RSE Owner	ITS Roadway Equipment Owner	Traffic Manager	RSE Maintainer	RSE Provider	Roadway Advanced Rail Crossing Provider	Roadway Advanced Rail Crossing Maintainer	Roadway Environmental Monitoring Maintainer	Roadway Environmental Monitoring Provider	RSE Rail Crossing Warning Provider	RSE Rail Crossing Warning Maintainer	Rail Operator	RSE Environmental Monitoring Maintainer	RSE Environmental Monitoring Provider	TMC Rail Crossing Management Maintainer	TMC Rail Crossing Management Provider	Vehicle Rail Crossing Warning Provider	Vehicle Rail Crossing Warning Maintainer	Roadway Owner
Vehicle Owner		Warranty	Warranty																	Warranty	Mobile Component Maintenance Agreement
Vehicle OBE Manufacturer	Warranty		Vehicle Data Access Agreement
Vehicle Manufacturer	Warranty	Vehicle Data Access Agreement
RSE Owner							Field Component Maintenance Agreement	Warranty					Warranty				Warranty					Device Placement and Operations Agreement
ITS Roadway Equipment Owner									Warranty	Maintenance Agreement	Maintenance Agreement	Warranty
Traffic Manager																		Maintenance Data Exchange Agreement	Warranty
RSE Maintainer				Field Component Maintenance Agreement										Maintenance Data Exchange Agreement
RSE Provider				Warranty
Roadway Advanced Rail Crossing Provider					Warranty					Maintenance Data Exchange Agreement					Application Interface Specification		Application Interface Specification		Application Interface Specification
Roadway Advanced Rail Crossing Maintainer					Maintenance Agreement				Maintenance Data Exchange Agreement
Roadway Environmental Monitoring Maintainer					Maintenance Agreement							Maintenance Data Exchange Agreement
Roadway Environmental Monitoring Provider					Warranty						Maintenance Data Exchange Agreement
RSE Rail Crossing Warning Provider				Warranty										Maintenance Data Exchange Agreement	Application Interface Specification				Application Interface Specification	Application Interface Specification
RSE Rail Crossing Warning Maintainer							Maintenance Data Exchange Agreement						Maintenance Data Exchange Agreement
Rail Operator									Application Interface Specification				Application Interface Specification
RSE Environmental Monitoring Maintainer																	Maintenance Data Exchange Agreement
RSE Environmental Monitoring Provider				Warranty					Application Interface Specification							Maintenance Data Exchange Agreement				Application Interface Specification
TMC Rail Crossing Management Maintainer						Maintenance Data Exchange Agreement
TMC Rail Crossing Management Provider						Warranty			Application Interface Specification				Application Interface Specification
Vehicle Rail Crossing Warning Provider	Warranty												Application Interface Specification				Application Interface Specification				Maintenance Data Exchange Agreement
Vehicle Rail Crossing Warning Maintainer	Mobile Component Maintenance Agreement																			Maintenance Data Exchange Agreement
Roadway Owner				Device Placement and Operations Agreement

Railroad Crossing Violation Warning Installation Stage
	Vehicle Owner	Vehicle OBE Manufacturer	Vehicle Manufacturer	RSE Deployer	RSE Owner	ITS Roadway Equipment Owner	Traffic Manager	RSE Provider	Roadway Advanced Rail Crossing Installer	Roadway Advanced Rail Crossing Provider	Roadway Environmental Monitoring Installer	Roadway Environmental Monitoring Provider	RSE Rail Crossing Warning Installer	RSE Rail Crossing Warning Provider	Rail Operator	RSE Environmental Monitoring Installer	TMC Rail Crossing Management Installer	TMC Rail Crossing Management Provider	Vehicle Rail Crossing Warning Installer	Vehicle Rail Crossing Warning Provider	Roadway Owner	RSE Environmental Monitoring Provider
Vehicle Owner		Mobile Component License Agreement	Vehicle Procurement Agreement
Vehicle OBE Manufacturer	Mobile Component License Agreement		Vehicle Data Access Agreement																Mobile Component Installation Agreement	Application Procurement Agreement
Vehicle Manufacturer	Vehicle Procurement Agreement	Vehicle Data Access Agreement																		Interface Description
RSE Deployer					RSE Deployment Agreement								Field Component Installation Agreement			Field Component Installation Agreement
RSE Owner				RSE Deployment Agreement				RSE Procurement Agreement						Application Procurement Agreement							Device Placement and Operations Agreement	Application Procurement Agreement
ITS Roadway Equipment Owner										Application Procurement Agreement	Installation Agreement	Application Procurement Agreement
Traffic Manager																	Backoffice Component Installation Agreement	Application Procurement Agreement
RSE Provider					RSE Procurement Agreement
Roadway Advanced Rail Crossing Installer
Roadway Advanced Rail Crossing Provider						Application Procurement Agreement									Application Interface Specification			Application Interface Specification
Roadway Environmental Monitoring Installer						Installation Agreement
Roadway Environmental Monitoring Provider						Application Procurement Agreement								Application Interface Specification
RSE Rail Crossing Warning Installer				Field Component Installation Agreement
RSE Rail Crossing Warning Provider					Application Procurement Agreement							Application Interface Specification			Application Interface Specification			Application Interface Specification		Application Interface Specification
Rail Operator										Application Interface Specification				Application Interface Specification
RSE Environmental Monitoring Installer				Field Component Installation Agreement
TMC Rail Crossing Management Installer							Backoffice Component Installation Agreement
TMC Rail Crossing Management Provider							Application Procurement Agreement			Application Interface Specification				Application Interface Specification
Vehicle Rail Crossing Warning Installer		Mobile Component Installation Agreement
Vehicle Rail Crossing Warning Provider		Application Procurement Agreement	Interface Description											Application Interface Specification								Application Interface Specification
Roadway Owner					Device Placement and Operations Agreement
RSE Environmental Monitoring Provider					Application Procurement Agreement															Application Interface Specification

Railroad Crossing Violation Warning Certification Stage
	Vehicle OBE Manufacturer	Vehicle Manufacturer	Application Certification Entity	Federal Regulatory	State Regulatory	Traffic Manager	RSE Provider	Rail Operator	Device Certification Entity	ITS Certification Entity
Vehicle OBE Manufacturer									Member
Vehicle Manufacturer			Member						Member
Application Certification Entity		Member		Member	Member	Member		Member
Federal Regulatory			Member						Member
State Regulatory			Member						Member
Traffic Manager			Member							Member
RSE Provider									Member
Rail Operator			Member							Member
Device Certification Entity	Member	Member		Member	Member		Member
ITS Certification Entity						Member		Member

Includes Enterprise Objects:

Enterprise Object	Description
Application Certification Entity	The body that determines whether an application may be deployed and operated in the Connected Vehicle Environment. This entity's composition, the requirements it applies and the procedures it uses to verify those requirements may vary with application type. For example, applications with human safety component (crash avoidance, movement assistance etc.) may have stringent requirements and extensive testing in a variety of conditions, while applications that provide strictly mobility functionality may have far less testing requirements; possibly as little as just making sure the application doesn't interfere with any other applications.
Device Certification Entity	The body that determines whether a device may be deployed and operated in the Connected Vehicle Environment. This entity's composition, the requirements it applies and the procedures it uses to verify those requirements may vary with device type.
Driver	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.
Federal Regulatory	Federal regulatory bodies that have legal authority to control and/or provide input to policies regulating transportation infrastructure and operations. This includes entities such as the Federal Communications Commission and US Department of Transportation.
ITS Certification Entity	The body that determines whether an ITS device or application may be deployed and operated in the transportation environment. This entity's composition, the requirements it applies and the procedures it uses to verify those requirements may vary with device and application type. Typically not a formal body, assigned on a project-by-project basis depending on the type of infrastructure involved. Since ITS projects are locally-focused (typically state or smaller), the entities that are part of this body are typically those with operational jurisdiction where the ITS is installed (e.g., state or local DOTs, state or local maintenance managers etc.)
ITS Roadway Equipment Owner	The entity that owns the Roadway ITS equipment.
ITS Roadway Operator	The entity that operates the Roadway ITS equipment.
Rail Operator	Operator and owner of railroad.
Roadway Advanced Rail Crossing Installer	Application Component Installers are specified more by role than by function. Installers are responsible for the installation of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
Roadway Advanced Rail Crossing Maintainer	Application Component Maintainers are specified more by role than by function. Maintainers are responsible for the maintenance (configuration changes, patches and updates, hardware repairs) of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
Roadway Advanced Rail Crossing Provider	Application Component Providers are specified more by role than by function. Providers are responsible for the development of the application component, including initial creation, enhancement and bug fixes. Delivery of the application to the end user may require relationships with other entities (installers, maintainers) if the provider chooses not to fulfill those roles.
Roadway Environmental Monitoring Installer	Application Component Installers are specified more by role than by function. Installers are responsible for the installation of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
Roadway Environmental Monitoring Maintainer	Application Component Maintainers are specified more by role than by function. Maintainers are responsible for the maintenance (configuration changes, patches and updates, hardware repairs) of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
Roadway Environmental Monitoring Provider	Application Component Providers are specified more by role than by function. Providers are responsible for the development of the application component, including initial creation, enhancement and bug fixes. Delivery of the application to the end user may require relationships with other entities (installers, maintainers) if the provider chooses not to fulfill those roles.
Roadway Owner	The owner of the roadway proximate to which roadside equipment will be/is installed.
RSE Deployer	The entity responsible for the deployment, operations and maintenance of roadside equipment.
RSE Environmental Monitoring Installer	Application Component Installers are specified more by role than by function. Installers are responsible for the installation of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
RSE Environmental Monitoring Maintainer	Application Component Maintainers are specified more by role than by function. Maintainers are responsible for the maintenance (configuration changes, patches and updates, hardware repairs) of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
RSE Environmental Monitoring Provider	Application Component Providers are specified more by role than by function. Providers are responsible for the development of the application component, including initial creation, enhancement and bug fixes. Delivery of the application to the end user may require relationships with other entities (installers, maintainers) if the provider chooses not to fulfill those roles.
RSE Maintainer	The entity that maintains the roadside equipment, including its hardware and operating system software, but not applications software.
RSE Operator	The entity that operates roadside equipment in the transportation environment.
RSE Owner	The owner of roadside equipment.
RSE Provider	The "RSE Provider" is the entity that develops and (presumably) sells roadside equipment to other entities for deployment and research.
RSE Rail Crossing Warning Installer	Application Component Installers are specified more by role than by function. Installers are responsible for the installation of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
RSE Rail Crossing Warning Maintainer	Application Component Maintainers are specified more by role than by function. Maintainers are responsible for the maintenance (configuration changes, patches and updates, hardware repairs) of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
RSE Rail Crossing Warning Provider	Application Component Providers are specified more by role than by function. Providers are responsible for the development of the application component, including initial creation, enhancement and bug fixes. Delivery of the application to the end user may require relationships with other entities (installers, maintainers) if the provider chooses not to fulfill those roles.
State Regulatory	State regulatory bodies that have legal authority to control and/or provide input to policies regulating vehicles, transportation infrastructure and operations. This includes entities like Departments of Motor Vehicles, property tax authorities and tolling agencies.
TMC Rail Crossing Management Installer	Application Component Installers are specified more by role than by function. Installers are responsible for the installation of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
TMC Rail Crossing Management Maintainer	Application Component Maintainers are specified more by role than by function. Maintainers are responsible for the maintenance (configuration changes, patches and updates, hardware repairs) of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
TMC Rail Crossing Management Provider	Application Component Providers are specified more by role than by function. Providers are responsible for the development of the application component, including initial creation, enhancement and bug fixes. Delivery of the application to the end user may require relationships with other entities (installers, maintainers) if the provider chooses not to fulfill those roles.
Traffic Manager	The entity responsible for the management of traffic, both freeway and arterial.
Vehicle Manufacturer	The entity that builds, assembles, verifies and validates the Vehicle in which the Vehicle OBE will eventually operate.
Vehicle OBE Manufacturer	The entity that builds, assembles, verifies and validates the Vehicle OBE. This can be an OEM-equipped OBE, retrofit or aftermarket equipment.
Vehicle OBE Owner	The entity, individual, group or corporation that owns the Vehicle On-Board equipment. This could be the same as the Vehicle Owner, but it could be a third part that licenses the use of the OBE to the Owner.
Vehicle Owner	The individual, group of individuals or corporate entity that is identified as the registered owner of the Vehicle under state law.
Vehicle Rail Crossing Warning Installer	Application Component Installers are specified more by role than by function. Installers are responsible for the installation of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
Vehicle Rail Crossing Warning Maintainer	Application Component Maintainers are specified more by role than by function. Maintainers are responsible for the maintenance (configuration changes, patches and updates, hardware repairs) of the application component, which may require a support system, and may entail agreements and relationships between end users and application providers.
Vehicle Rail Crossing Warning Provider	Application Component Providers are specified more by role than by function. Providers are responsible for the development of the application component, including initial creation, enhancement and bug fixes. Delivery of the application to the end user may require relationships with other entities (installers, maintainers) if the provider chooses not to fulfill those roles.

Includes Resources:

Resource	Description
Application Component Certification Requirements	The requirements that define the functionality, performance and operational environment of an application component. Certification Requirements must be met in order for an application to be installed in the CVE.
Backoffice Service Development System	The systems used to develop backoffice (center) hardware and software components of applications.
Backoffice Service Installation System	The systems used to install and configure backoffice (center) hardware and software components.
Backoffice Service Maintenance System	The systems used to maintain and upgrade backoffice (center) hardware and software components.
Device Certification Requirements	The requirements that define the functionality, performance and operational environment of a connected vehicle device. Certification Requirements must be met in order for the device to be granted the credentials necessary to operate in the Connected Vehicle Environment.
Field Component Development System	The system used in a backoffice environment to develop and test the field component of the application.
Field Component Installation System	The system used to install a field component of a connected vehicle application.
Field Component Maintenance System	The system used to install and configure changes and updates to the field component of the application. This system is capable of acquiring and reporting diagnostic information about the application's configuration and performance.
ITS Certification Requirements	The requirements that define the functionality, performance and operational environment of an ITS device or ITS application. Applicability varies with jurisdictions, but typically devices and applications must meet pre-defined acceptance criteria prior to usage in the transportation environment.
ITS Field Component Development System	The system used in a backoffice environment to develop and test the ITS field component of the application.
ITS Field Component Installation System	The system used to install a field component of a connected vehicle application.
ITS Field Component Maintenance System	The system used to install and configure changes and updates to the ITS field component of the application. This system is capable of acquiring and reporting diagnostic information about the application's configuration and performance.
ITS Roadway Equipment	'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 itself. In CVRIA, this physical object represents all of the other ITS field equipment that interfaces with and supports the Connected Vehicle Roadside Equipment (RSE). 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.
Mobile Component Development System	The system used in a backoffice environment to develop and test the mobile component of the application.
Mobile Component Installation System	The system that interacts with the Vehicle OBE other mobile device and installs the mobile component of the application.
Mobile Component Maintenance System	The system used to configure changes and updates to the mobile component of the application. This system is capable of acquiring and reporting diagnostic information about the application's configuration and performance.
Personal Information Device	The 'Personal Information Device' provides the capability for travelers to receive formatted traveler information wherever they are. Capabilities include traveler information, trip planning, and route guidance. Frequently a smart phone, the Personal Information Device provides travelers with the capability to receive route planning and other personally focused transportation services from the infrastructure in the field, at home, at work, or while en-route. Personal Information Devices may operate independently or may be linked with connected vehicle on-board equipment.
Roadside Equipment	'Roadside Equipment' (RSE) represents the Connected Vehicle roadside devices that are used to send messages to, and receive messages from, nearby vehicles using Dedicated Short Range Communications (DSRC) or other alternative wireless communications technologies. Communications with adjacent field equipment and back office centers that monitor and control the RSE are also supported. This device operates from a fixed position and may be permanently deployed or a portable device that is located temporarily in the vicinity of a traffic incident, road construction, or a special event. It includes a processor, data storage, and communications capabilities that support secure communications with passing vehicles, other field equipment, and centers.
Roadway Advanced Rail Crossing	"Roadway Advanced Rail Crossing" manages highway traffic at highway-rail intersections (HRIs) where operational requirements demand advanced features (e.g., where rail operational speeds are greater than 80 miles per hour). The active warning systems supported by this application include positive barrier systems which preclude entrance into the intersection when the barriers are activated. This application is activated on notification by wayside interface equipment which detects, or communicates with the approaching train. In this application, additional information about the arriving train is also provided by the wayside interface equipment so that the train's direction of travel, its estimated time of arrival, and the estimated duration of closure may be derived. This enhanced information may be conveyed to the driver prior to, or in context with, warning system activation. This application also includes detection capabilities which enable it to detect an entrapped or otherwise immobilized vehicle on the grade crossing and provide an immediate notification to the wayside interface equipment and traffic management.
Roadway Environmental Monitoring	"Roadway Environmental Monitoring" measures environmental conditions and communicates the collected information back to a center where it can be monitored and analyzed. A broad array of general weather and road surface information may be collected. Weather conditions that may be measured include temperature, wind, humidity, precipitation, and visibility. Surface and sub-surface sensors can measure road surface temperature, moisture, icing, salinity, and other measures.
RSE Development System	The system used in a backoffice environment to develop and test the roadside equipment.
RSE Environmental Monitoring	"RSE Environmental Monitoring" collects environmental situation (probe) data from passing vehicles that are equipped with short range communications capability. The collected data includes current environmental conditions as measured by on-board sensors (e.g., ambient temperature and precipitation measures), current status of vehicle systems that can be used to infer environmental conditions (e.g., status of lights, wipers, ABS, and traction control systems), and emissions measures reported by the vehicle. The application object collects the provided data, aggregates and filters the data based on provided configuration parameters, and sends the collected information back to a center for processing and distribution. This application object may also process the collected data locally and issue short-term road weather advisories for the road segment using short range communications.
RSE Installation System	The system used to install and configure the roadside equipment.
RSE Maintenance System	The system used to configure changes and updates to the roadside equipment. This system is capable of acquiring and reporting diagnostic information about the RSE's configuration and performance.
RSE Rail Crossing Warning	"RSE Rail Crossing Warning" is a connected vehicle application that improves safety at rail crossings. It communicates with wayside equipment that detects or communicates with approaching trains. It provides rail crossing warnings and train arrival information to approaching vehicles and monitors connected vehicles that may intrude on the crossing.
TMC Rail Crossing Management	"TMC Rail Crossing Management" monitors and controls rail crossing traffic control equipment. Various levels of roadside equipment may be interfaced including standard active warning systems and high speed systems that provide additional information on approaching trains and detect and report obstructions on the grade crossing. This application remotely monitors and reports the status of the rail crossing equipment and sends control plan updates to the equipment.
Traffic Management 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	The conveyance that provides the sensory, processing, storage, and communications functions necessary to support efficient, safe, and convenient travel. These functions reside in general vehicles including personal automobiles, commercial vehicles, emergency vehicles, transit vehicles, or other vehicle types.
Vehicle Databus	The 'Vehicle Databus' represents the interface to the vehicle databus (e.g., CAN, LIN, Ethernet/IP, FlexRay, and MOST) that may enable communication between the Vehicle OBE and other vehicle systems to support connected vehicle applications. The vehicle system statuses and/or sensor outputs available on the databus will vary based on the equipment installed on the vehicle and availability on databus. System statuses and sensor outputs may include select vehicle systems and sensors such as accelerometers, yaw rate sensors, and GPS derived location and timing information. In CVRIA, this physical object is used to represent the onboard interactions between the Vehicle OBE and the other systems included in a host vehicle. Note that the vehicle databus interface is not standardized across all vehicle classes. Also, some Vehicle OBE implementations will not have access to the vehicle databus. See 'Vehicle OBE' for more information.
Vehicle OBE	The Vehicle On-Board Equipment (OBE) provides the vehicle-based processing, storage, and communications functions necessary to support connected vehicle operations. The radio(s) supporting V2V and V2I communications are a key component of the Vehicle OBE. This communication platform is augmented with processing and data storage capability that supports the connected vehicle applications. In CVRIA, the Vehicle OBE includes the functions and interfaces that support connected vehicle applications for passenger cars, trucks, and motorcycles. Many of these applications (e.g., V2V Safety applications) apply to all vehicle types including personal vehicles, commercial vehicles, emergency vehicles, transit vehicles, and maintenance vehicles. From this perspective, the Vehicle OBE includes the common interfaces and functions that apply to all motorized vehicles.
Vehicle Rail Crossing Warning	"Vehicle Rail Crossing Warning " uses I2V communications to receive alerts of trains entering HRIs and to provide warnings to drivers regarding the trains. The warning can include second train warning (meaning the HRI gates are about to lower, or remain lowered due to the arrival of a second train). The application can also provide vehicle infringement warnings by using the alert information along with vehicle trajectory information to determine that the vehicle will infringe upon a crossing that is (or will be) occupied by a train.
Wayside Equipment	'Wayside Equipment' represents train interface equipment (usually) maintained and operated by the railroad and (usually) physically located at or near a grade crossing. It is a source and destination for information for, or about, approaching trains and their crews (e.g. the time at which the train will arrive and the time it will take to clear a crossing, crossing status or warnings, etc.). Generally one wayside equipment interface would be associated with one highway rail intersection. However, multiple crossings may be controlled using information based on data from one wayside equipment interface.

Includes Roles:

Role	Description
Certifies	An Enterprise verifies that a target Resource meets relevant performance, functional, environmental and quality requirements.
Constrains	A Resource or Enterprise applies requirements, constraints and associated tests to another Resource.
Installs	An Enterprise performs the initial delivery, integration and configuration of the target Resource.
Maintains	An Enterprise administers the hardware and software that comprise the target Resource.
Member	An Enterprise is part of another larger, target Enterprise.
Operates	An Enterprise controls the functionality and state of the target Resource. An Enterprise that Operates a resource is considered Responsible.
Owns	An Enterprise has financial ownership and control over the Resource. An Enterprise that Owns a resource is considered Accountable.

Includes Coordination:

Coordination	Type	Description
Application Installation Data	Information Sharing	Data needed to install the application, including the application executable code and any configuration data. Unidirectional flow.
Application Interface Specification	Agreement	The definition of an interface between two application components that operate on two distinct pieces of hardware. The Application Interface Specification is specific to the application in question.
Application Maintenance Data	Information Sharing	Data used to facilitate the upgrade, patching and general health maintenance of an application component.
Application Performance Data	Information Sharing	Data used to characterize application performance, including such measures as availability, known errors and known uses.
Application Procurement Agreement	Agreement	An agreement whereupon one entity provides a copy of an application component to another entity. This component is capable of being installed and functioning, according to its requirements that passed through the application's certification process.
Application Usage Agreement	Agreement	An agreement in which one entity that controls an application component's use gives the other entity the necessary tools and permission to operate that application or application component.
Backoffice Component Installation Agreement	Agreement	An agreement that grants one party permission to install a backoffice application component on a center-based device controlled by the other party.
Backoffice Component Maintenance Agreement	Agreement	An agreement in which one entity maintains the operational status of the backoffice component of an application under the control of another entity. This maintenance may include routine and as-needed maintenance, such as software update and configuration, hardware replacement and related system administration activities.
Device Placement and Operations Agreement	Agreement	An agreement that enables the controller of a physical device to install it (so as to make it operational) at a fixed location controlled by another entity.
Expectation of Data Provision	Expectation	An expectation where one party believes another party will provide data on a regular and recurring basis, and that that data will be useful to the receiver in the context of the receiver's application. This thus includes some expectation of data fields, timeliness, quality, precision and similar qualities of data.
Expectation of Information Provision	Expectation	An expectation where one party believes another party will provide it information whenever such information is likely relevant to the recipient.
Field Component Installation Agreement	Agreement	An agreement that grants one party permission to install a field application component on a roadside device controlled by the other party.
Field Component Maintenance Agreement	Agreement	An agreement in which one entity maintains the operational status of the field component of an application under the control of another entity. This maintenance may include routine and as-needed maintenance, such as software update and configuration, hardware replacement and related system administration activities.
Includes	Includes	Indicates that one component is entirely contained within another component.
Information Exchange Agreement	Agreement	An agreement to exchange information, which may include data or control information; the exact information to be exchanged may vary from agreement to agreement.
Installation Agreement	Agreement	An agreement whereupon one entity installs an application component on a device controlled by another entity.
Interface Description	Agreement	Documentation of the interface between two systems, where one system does not have an application component that is part of the application, but does provide and/or receive data and/or information that is used by or sourced from the application. In many cases this is an existing interface used by the application, so the description of the interface already exists and is imposed by the terminator.
Maintenance Agreement	Agreement	An agreement in which one entity maintains the operational status of a system under the control of another entity. This maintenance may include routine and as-needed maintenance, such as software update and configuration, hardware replacement and related system administration activities.
Maintenance Data Exchange Agreement	Agreement	An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Mobile Component Installation Agreement	Agreement	An agreement whereupon the controller of OBE gives another party permission to install, configure and make operational a component that enables the mobile portion of an application.
Mobile Component License Agreement	Agreement	An end-user license agreement allowing the operator of the mobile device to use the mobile application component that is part of the application in question.
Mobile Component Maintenance Agreement	Agreement	An agreement in which one entity maintains the operational status of the mobile component of an application under the control of another entity. This maintenance may include routine and as-needed maintenance, such as software update and configuration, hardware replacement and related system administration activities.
Operations Agreement	Agreement	An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
RSE Deployment Agreement	Agreement	Agreement to install, configure and make operational roadside equipment, between the provider of that equipment and the entity that controls access to the roadside. May define locations, expectation of power provision, backhaul responsibility and installation restrictions.
RSE Installation Data	Information Sharing	Data necessary to configure and make RSE operational. Uni-directional.
RSE Maintenance Data	Information Sharing	Data necessary to modify the operational configuration of RSE; assumes RSE is already configured. Uni-directional.
RSE Performance Data	Information Sharing	Data that includes metrics of RSE performance. Could include fields such as uptime, packets received/transmitted, distance vector from which packets received, as well as application-specific performance measures.
RSE Procurement Agreement	Agreement	An agreement whereupon one entity provides roadside equipment to another entity. The RSE is capable of being installed and functioning, according to its requirements that passed through the device's certification process.
Service Delivery Agreement	Agreement	A relationship where one party agrees to provide a service to the other party. This agreement may specify the expected performance of this service in terms of availability and/or actions/time-type performance specifications.
Vehicle Data Access Agreement	Agreement	An agreement whereby the party that controls access to on-board vehicle data grants another party the right and ability to access that data. Includes the conditions under which data may be accessed, and specifies the mechanisms, including physical and functional access methods, data formats and any other considerations necessary for the accessing party to acquire data. May also include caveats regarding responsibility for data quality and responsibility for use of the data.
Vehicle OBE Usage Agreement	Agreement	An agreement that grants one entity permission to use a Vehicle OBE that the other party controls.
Vehicle Procurement Agreement	Agreement	The exchange of a vehicle for compensation. One entity purchases the vehicle from the other.
Vehicle Usage Agreement	Agreement	An agreement between the owner of a vehicle and a prospective operator, whereupon the owner allows the operator to use the vehicle.
Warranty	Agreement	A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance over time of an application component.

Functional

Includes Processes:

Level	Name	Type	Allocated to Application Object
1.1	Provide Traffic Surveillance	Collection
1.1.1	Process Sensor Data	Collection
1.1.1.3	Process Environmental Sensor Data	Pspec	- Roadway Environmental Monitoring
1.1.1.6	Collect Vehicle Roadside Safety Data	Pspec	- RSE Environmental Monitoring - RSE Rail Crossing Warning
1.1.2	Process and Store Traffic Data	Collection
1.1.2.6	Process Collected Vehicle Safety Data	Pspec	- RSE Environmental Monitoring - RSE Rail Crossing Warning
1.2	Provide Device Control	Collection
1.2.4	Output Control Data	Collection
1.2.4.3	Output In-vehicle Signage Data	Pspec
1.2.4.4	Output Roadway Information Data	Pspec	- TMC Rail Crossing Management
1.2.7	Provide Roadside Control Facilities	Collection
1.2.7.1	Process Indicator Output Data for Roads	Pspec	- Roadway Environmental Monitoring - Roadway Advanced Rail Crossing
1.2.7.4	Process In-vehicle Signage Data	Pspec	- RSE Environmental Monitoring - RSE Rail Crossing Warning
1.2.7.7	Process Vehicle Safety and Environmental Data for Output	Pspec	- RSE Environmental Monitoring - RSE Rail Crossing Warning
1.2.7.15	Process Intersection Safety Data	Pspec	- RSE Environmental Monitoring - RSE Rail Crossing Warning
1.6	Manage Highway Rail Intersections	Collection
1.6.1	Manage HRI Traffic Volume	Collection
1.6.1.1	Detect Roadway Events	Pspec	- Roadway Advanced Rail Crossing
1.6.1.2	Activate HRI Device Controls	Collection
1.6.1.2.4	Provide HSR Device Controls	Pspec	- Roadway Advanced Rail Crossing
1.6.1.4	Provide Advisories and Alerts	Collection
1.6.1.4.1	Generate Alerts and Advisories	Pspec	- Roadway Advanced Rail Crossing
1.6.1.4.3	Report Alerts and Advisories	Pspec	- Roadway Advanced Rail Crossing
1.6.1.4.4	Report HRI Status on Approach	Pspec	- Roadway Advanced Rail Crossing
1.6.1.5	Detect HRI Hazards	Pspec	- Roadway Advanced Rail Crossing
1.6.1.6	Provide Advance Warnings	Collection
1.6.1.6.1	Close HRI on Detection	Pspec	- Roadway Advanced Rail Crossing
1.6.1.6.2	Detect Imminent Vehicle/Train Collision	Pspec	- Roadway Advanced Rail Crossing
1.6.1.7	Execute Local Control Strategy	Collection
1.6.1.7.1	Control Traffic Volume at Active HRI	Pspec	- Roadway Advanced Rail Crossing
1.6.1.7.2	Close HRI on Command	Pspec	- Roadway Advanced Rail Crossing
1.6.2	Interact with Rail Operations	Collection
1.6.2.1	Exchange Data with Rail Operations	Pspec	- TMC Rail Crossing Management
1.6.2.2	Manage Alerts and Advisories	Pspec	- TMC Rail Crossing Management
1.6.3	Manage HRI Rail Traffic	Collection
1.6.3.1	Interact with Wayside Systems	Pspec	- Roadway Advanced Rail Crossing
1.6.3.2	Advise and Protect Train Crews	Pspec	- Roadway Advanced Rail Crossing
1.6.4	Interact with Traffic Volume Management	Collection
1.6.4.1	Manage HRI Closures	Pspec	- TMC Rail Crossing Management
1.6.4.2	Exchange Data with Traffic Management	Pspec	- TMC Rail Crossing Management
1.6.5	Monitor HRI Status	Collection
1.6.5.1	Provide Interactive Interface	Pspec	- Roadway Advanced Rail Crossing
3.1	Monitor Vehicle Status	Collection
3.1.1	Produce Collision and Crash Avoidance Data	Pspec	- Vehicle Rail Crossing Warning
3.1.3	Process Vehicle On-board Data	Pspec	- Vehicle Rail Crossing Warning
6.7	Provide Driver Personal Services	Collection
6.7.1	Provide On-line Vehicle Guidance	Collection
6.7.1.3	Process Vehicle Location Data	Pspec	- Vehicle Rail Crossing Warning
6.7.1.4	Update Vehicle Navigable Map Database	Pspec	- Vehicle Rail Crossing Warning
6.7.3	Provide Traveler Services in Vehicle	Collection
6.7.3.2	Provide Driver with Personal Travel Information	Pspec
6.7.3.3	Provide Driver Information Interface	Pspec	- Vehicle Rail Crossing Warning

Includes Data Flows:

Source Pspec	Data Flow	Destination Pspec
Advise and Protect Train Crews	hri_reporting_data	Interact with Wayside Systems
Close HRI on Detection	hri_hazard	Detect HRI Hazards
Close HRI on Detection	predicted_hri_state	Detect Imminent Vehicle/Train Collision
Close HRI on Detection	rail_operations_message	Exchange Data with Rail Operations
Close HRI on Detection	hri_blockage	Manage Alerts and Advisories
Collect Vehicle Roadside Safety Data	vehicle_safety_input_data	Process Collected Vehicle Safety Data
Control Traffic Volume at Active HRI	close_hri	Close HRI on Command
Control Traffic Volume at Active HRI	local_control_plan	Close HRI on Detection
Control Traffic Volume at Active HRI	traffic_management_request	Exchange Data with Traffic Management
Control Traffic Volume at Active HRI	hri_traffic_data	Manage HRI Closures
Detect HRI Hazards	strategy_preemption	Control Traffic Volume at Active HRI
Detect HRI Hazards	intersection_blocked	Exchange Data with Traffic Management
Detect HRI Hazards	hazard_condition	Generate Alerts and Advisories
Detect HRI Hazards	hazard_condition	Report HRI Status on Approach
Detect Imminent Vehicle/Train Collision	hri_predicted_collision	Close HRI on Detection
Detect Roadway Events	current_hri_state	Close HRI on Detection
Detect Roadway Events	event_notice	Control Traffic Volume at Active HRI
Detect Roadway Events	train_sense_data	Process Indicator Output Data for Roads
Detect Roadway Events	train_sense_data_for_intersection	Process Intersection Safety Data
Exchange Data with Rail Operations	rail_operations_device_command	Close HRI on Command
Exchange Data with Rail Operations	rail_operations_priority_data	Manage Alerts and Advisories
Exchange Data with Rail Operations	rail_operations_roadside_command	Process Intersection Safety Data
Exchange Data with Rail Operations	rail_operations_requests	Provide Interactive Interface
Exchange Data with Traffic Management	hri_traffic_surveillance	Control Traffic Volume at Active HRI
Exchange Data with Traffic Management	hri_traffic_surveillance	Detect Roadway Events
Exchange Data with Traffic Management	train_ops_plan	Manage HRI Closures
Exchange Data with Traffic Management	tms_requests	Provide Interactive Interface
Generate Alerts and Advisories	hri_advisory	Report Alerts and Advisories
Generate Alerts and Advisories	hri_alert	Report Alerts and Advisories
Interact with Wayside Systems	approaching_train_announcement	Advise and Protect Train Crews
Interact with Wayside Systems	approaching_train_data	Detect Roadway Events
Manage Alerts and Advisories	rail_operations_advisories	Close HRI on Detection
Manage Alerts and Advisories	hri_priority_message	Exchange Data with Rail Operations
Manage Alerts and Advisories	rail_operations_advisories_for_signage	Process In-vehicle Signage Data
Manage HRI Closures	closure_event_data	Exchange Data with Traffic Management
Output In-vehicle Signage Data	infrastructure_warning_signage	Process In-vehicle Signage Data
Output In-vehicle Signage Data	vehicle_sign_data	Process In-vehicle Signage Data
Output In-vehicle Signage Data	vehicle_signage_reduced_speed_zone_data	Process In-vehicle Signage Data
Output In-vehicle Signage Data	vehicle_signage_stop_sign_gap_data	Process In-vehicle Signage Data
Output In-vehicle Signage Data	vehicle_signage_configuration	Process In-vehicle Signage Data
Output Roadway Information Data	indicator_sign_control_data_for_hri	Detect Roadway Events
Output Roadway Information Data	roadway_info_for_signage	Output In-vehicle Signage Data
Process Collected Vehicle Safety Data	vehicle_env_sensor_data_for_roadside	Process Environmental Sensor Data
Process Collected Vehicle Safety Data	vehicle_traffic_data_for_roads	Process Indicator Output Data for Roads
Process Collected Vehicle Safety Data	vehicle_safety_data_indication	Process Vehicle Safety and Environmental Data for Output
Process Collected Vehicle Safety Data	roadway_geometry_location_data	Process Vehicle Safety and Environmental Data for Output
Process Collected Vehicle Safety Data	roadway_intersection_geometry_data	Process Vehicle Safety and Environmental Data for Output
Process Environmental Sensor Data	environmental_sensor_data_for_roadside_safety	Process Collected Vehicle Safety Data
Process Indicator Output Data for Roads	hri_device_sense	Detect Roadway Events
Process Indicator Output Data for Roads	pedestrian_crosswalk_indicator_for_roadside	Process Intersection Safety Data
Process Indicator Output Data for Roads	roadside_signal_phase_indication	Process Vehicle Safety and Environmental Data for Output
Process Indicator Output Data for Roads	roadside_signal_phase_timing	Process Vehicle Safety and Environmental Data for Output
Process Indicator Output Data for Roads	roadside_signal_phase_response_state	Process Vehicle Safety and Environmental Data for Output
Process Indicator Output Data for Roads	roadside_signal_priority_preempt	Process Vehicle Safety and Environmental Data for Output
Process Intersection Safety Data	intersection_safety_status_for_rail_operations	Exchange Data with Rail Operations
Process Intersection Safety Data	intersection_infringement_for_indicators	Process Indicator Output Data for Roads
Process Intersection Safety Data	local_traffic_signal_service_request	Process Indicator Output Data for Roads
Process Intersection Safety Data	intersection_warning_for_signage	Process In-vehicle Signage Data
Process Intersection Safety Data	intersection_data_for_signage	Process In-vehicle Signage Data
Process Intersection Safety Data	intersection_status_data_for_vehicle	Process Vehicle On-board Data
Process Intersection Safety Data	intersection_collision_avoidance_data	Produce Collision and Crash Avoidance Data
Process Intersection Safety Data	stop_sign_gap_data_to_vehicle	Produce Collision and Crash Avoidance Data
Process In-vehicle Signage Data	vehicle_sign_status_for_rail_operations	Manage Alerts and Advisories
Process In-vehicle Signage Data	reduced_speed_signage_message_output	Output In-vehicle Signage Data
Process In-vehicle Signage Data	infrastructure_restriction_signage_message_output	Output In-vehicle Signage Data
Process In-vehicle Signage Data	vehicle_sign_status	Output In-vehicle Signage Data
Process In-vehicle Signage Data	speed_vehicle_sign_status	Output In-vehicle Signage Data
Process In-vehicle Signage Data	infrastructure_vehicle_sign_status	Output In-vehicle Signage Data
Process In-vehicle Signage Data	stop_sign_gap_signage_message_output	Output In-vehicle Signage Data
Process In-vehicle Signage Data	stop_sign_gap_sign_status	Output In-vehicle Signage Data
Process In-vehicle Signage Data	vehicle_signage_hri_data	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_individual_vehicle_speed	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_roadway_warning	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_alert_data	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_evacuation_data	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_output_data	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_speed_warning	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_barrier_message	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_emissions_message	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_traffic_data_message	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_traffic_metering_message	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_variable_speed_limit_message	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_reduced_speed_message	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_reduced_speed_zone_definition	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_reduced_speed_zone_timing	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_road_weather_advisory	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_infrastructure_restriction_ahead	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_infrastructure_restriction_warning	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_pedestrian_presence	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_intersection_infringement	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_rail_crossing_warning	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_stop_sign_gap_assist	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_work_zone_intrusion	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_work_zone_information	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_intersection_message	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_queue_warning	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_incident_work_zone	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_dynamic_lane_configuration	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_lane_closure_data	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_road_configuration_data	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_road_closure_data	Provide Driver with Personal Travel Information
Process In-vehicle Signage Data	vehicle_signage_road_diversion_data	Provide Driver with Personal Travel Information
Process Vehicle Location Data	vehicle_location_for_probe_data	Process Vehicle On-board Data
Process Vehicle Location Data	vehicle_location_in_roadway	Produce Collision and Crash Avoidance Data
Process Vehicle On-board Data	vehicle_roadside_location_data	Collect Vehicle Roadside Safety Data
Process Vehicle On-board Data	vehicle_roadside_speed_data	Collect Vehicle Roadside Safety Data
Process Vehicle On-board Data	vehicle_roadside_size_data	Collect Vehicle Roadside Safety Data
Process Vehicle On-board Data	vehicle_roadside_current_status_data	Collect Vehicle Roadside Safety Data
Process Vehicle On-board Data	vehicle_roadside_control_event_data	Process Collected Vehicle Safety Data
Process Vehicle On-board Data	vehicle_status_for_intersection	Process Intersection Safety Data
Process Vehicle On-board Data	collision_data	Produce Collision and Crash Avoidance Data
Process Vehicle On-board Data	vehicle_status_details_for_broadcast	Provide Driver with Personal Travel Information
Process Vehicle Safety and Environmental Data for Output	env_sensor_data_for_advisory_message	Process In-vehicle Signage Data
Process Vehicle Safety and Environmental Data for Output	vehicle_safety_and_roadway_data	Process In-vehicle Signage Data
Process Vehicle Safety and Environmental Data for Output	position_correction_to_vehicle	Process Vehicle Location Data
Process Vehicle Safety and Environmental Data for Output	roadside_safety_data_to_vehicle	Process Vehicle On-board Data
Process Vehicle Safety and Environmental Data for Output	signal_phase_indication_to_vehicle	Produce Collision and Crash Avoidance Data
Process Vehicle Safety and Environmental Data for Output	signal_phase_timing_to_vehicle	Produce Collision and Crash Avoidance Data
Process Vehicle Safety and Environmental Data for Output	signal_phase_response_state_to_vehicle	Produce Collision and Crash Avoidance Data
Process Vehicle Safety and Environmental Data for Output	queue_warning_from_roadside	Produce Collision and Crash Avoidance Data
Process Vehicle Safety and Environmental Data for Output	vehicle_env_sensor_data_output	Provide Driver with Personal Travel Information
Process Vehicle Safety and Environmental Data for Output	roadway_geometry_to_vehicle	Update Vehicle Navigable Map Database
Process Vehicle Safety and Environmental Data for Output	roadside_intersection_details_to_vehicle	Update Vehicle Navigable Map Database
Process Vehicle Safety and Environmental Data for Output	roadside_intersection_lanes_to_vehicle	Update Vehicle Navigable Map Database
Process Vehicle Safety and Environmental Data for Output	roadside_map_update_to_vehicle	Update Vehicle Navigable Map Database
Produce Collision and Crash Avoidance Data	vehicle_intersection_infringement	Process Intersection Safety Data
Produce Collision and Crash Avoidance Data	position_warnings	Provide Driver with Personal Travel Information
Provide Driver Information Interface	vehicle_display_type	Provide Driver with Personal Travel Information
Provide Driver with Personal Travel Information	vehicle_advisory_information	Provide Driver Information Interface
Provide Driver with Personal Travel Information	vehicle_traveler_information	Provide Driver Information Interface
Provide Driver with Personal Travel Information	vehicle_trip_planning_responses	Provide Driver Information Interface
Provide Interactive Interface	hri_status	Advise and Protect Train Crews
Provide Interactive Interface	hri_status	Detect Roadway Events
Provide Interactive Interface	hri_status	Exchange Data with Traffic Management
Provide Interactive Interface	hri_status	Manage Alerts and Advisories
Report Alerts and Advisories	train_message	Advise and Protect Train Crews
Report Alerts and Advisories	approach_warning	Report HRI Status on Approach
Report HRI Status on Approach	hri_guidance_for_roadway_info	Output Roadway Information Data
Report HRI Status on Approach	hri_data_for_signage_from_roadway	Process In-vehicle Signage Data
Report HRI Status on Approach	train_arrival_data_for_signage_from_roadway	Process In-vehicle Signage Data

Physical

This is one way this application may be realized, but not the only way. There are other ways to build a given application and accomplish a stated objective.

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Includes Physical Objects:

Physical Object	Class	Description
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 itself. In CVRIA, this physical object represents all of the other ITS field equipment that interfaces with and supports the Connected Vehicle Roadside Equipment (RSE). 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.
Roadside Equipment	Field	'Roadside Equipment' (RSE) represents the Connected Vehicle roadside devices that are used to send messages to, and receive messages from, nearby vehicles using Dedicated Short Range Communications (DSRC) or other alternative wireless communications technologies. Communications with adjacent field equipment and back office centers that monitor and control the RSE are also supported. This device operates from a fixed position and may be permanently deployed or a portable device that is located temporarily in the vicinity of a traffic incident, road construction, or a special event. It includes a processor, data storage, and communications capabilities that support secure communications with passing vehicles, other field equipment, and centers.
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 Databus	Vehicle	The 'Vehicle Databus' represents the interface to the vehicle databus (e.g., CAN, LIN, Ethernet/IP, FlexRay, and MOST) that may enable communication between the Vehicle OBE and other vehicle systems to support connected vehicle applications. The vehicle system statuses and/or sensor outputs available on the databus will vary based on the equipment installed on the vehicle and availability on databus. System statuses and sensor outputs may include select vehicle systems and sensors such as accelerometers, yaw rate sensors, and GPS derived location and timing information. In CVRIA, this physical object is used to represent the onboard interactions between the Vehicle OBE and the other systems included in a host vehicle. Note that the vehicle databus interface is not standardized across all vehicle classes. Also, some Vehicle OBE implementations will not have access to the vehicle databus. See 'Vehicle OBE' for more information.
Vehicle OBE	Vehicle	The Vehicle On-Board Equipment (OBE) provides the vehicle-based processing, storage, and communications functions necessary to support connected vehicle operations. The radio(s) supporting V2V and V2I communications are a key component of the Vehicle OBE. This communication platform is augmented with processing and data storage capability that supports the connected vehicle applications. In CVRIA, the Vehicle OBE includes the functions and interfaces that support connected vehicle applications for passenger cars, trucks, and motorcycles. Many of these applications (e.g., V2V Safety applications) apply to all vehicle types including personal vehicles, commercial vehicles, emergency vehicles, transit vehicles, and maintenance vehicles. From this perspective, the Vehicle OBE includes the common interfaces and functions that apply to all motorized vehicles.
Wayside Equipment	Field	'Wayside Equipment' represents train interface equipment (usually) maintained and operated by the railroad and (usually) physically located at or near a grade crossing. It is a source and destination for information for, or about, approaching trains and their crews (e.g. the time at which the train will arrive and the time it will take to clear a crossing, crossing status or warnings, etc.). Generally one wayside equipment interface would be associated with one highway rail intersection. However, multiple crossings may be controlled using information based on data from one wayside equipment interface.

Includes Application Objects:

Application Object	Description	Physical Object
Roadway Advanced Rail Crossing	"Roadway Advanced Rail Crossing" manages highway traffic at highway-rail intersections (HRIs) where operational requirements demand advanced features (e.g., where rail operational speeds are greater than 80 miles per hour). The active warning systems supported by this application include positive barrier systems which preclude entrance into the intersection when the barriers are activated. This application is activated on notification by wayside interface equipment which detects, or communicates with the approaching train. In this application, additional information about the arriving train is also provided by the wayside interface equipment so that the train's direction of travel, its estimated time of arrival, and the estimated duration of closure may be derived. This enhanced information may be conveyed to the driver prior to, or in context with, warning system activation. This application also includes detection capabilities which enable it to detect an entrapped or otherwise immobilized vehicle on the grade crossing and provide an immediate notification to the wayside interface equipment and traffic management.	ITS Roadway Equipment
Roadway Environmental Monitoring	"Roadway Environmental Monitoring" measures environmental conditions and communicates the collected information back to a center where it can be monitored and analyzed. A broad array of general weather and road surface information may be collected. Weather conditions that may be measured include temperature, wind, humidity, precipitation, and visibility. Surface and sub-surface sensors can measure road surface temperature, moisture, icing, salinity, and other measures.	ITS Roadway Equipment
RSE Environmental Monitoring	"RSE Environmental Monitoring" collects environmental situation (probe) data from passing vehicles that are equipped with short range communications capability. The collected data includes current environmental conditions as measured by on-board sensors (e.g., ambient temperature and precipitation measures), current status of vehicle systems that can be used to infer environmental conditions (e.g., status of lights, wipers, ABS, and traction control systems), and emissions measures reported by the vehicle. The application object collects the provided data, aggregates and filters the data based on provided configuration parameters, and sends the collected information back to a center for processing and distribution. This application object may also process the collected data locally and issue short-term road weather advisories for the road segment using short range communications.	Roadside Equipment
RSE Rail Crossing Warning	"RSE Rail Crossing Warning" is a connected vehicle application that improves safety at rail crossings. It communicates with wayside equipment that detects or communicates with approaching trains. It provides rail crossing warnings and train arrival information to approaching vehicles and monitors connected vehicles that may intrude on the crossing.	Roadside Equipment
TMC Rail Crossing Management	"TMC Rail Crossing Management" monitors and controls rail crossing traffic control equipment. Various levels of roadside equipment may be interfaced including standard active warning systems and high speed systems that provide additional information on approaching trains and detect and report obstructions on the grade crossing. This application remotely monitors and reports the status of the rail crossing equipment and sends control plan updates to the equipment.	Traffic Management Center
Vehicle Rail Crossing Warning	"Vehicle Rail Crossing Warning " uses I2V communications to receive alerts of trains entering HRIs and to provide warnings to drivers regarding the trains. The warning can include second train warning (meaning the HRI gates are about to lower, or remain lowered due to the arrival of a second train). The application can also provide vehicle infringement warnings by using the alert information along with vehicle trajectory information to determine that the vehicle will infringe upon a crossing that is (or will be) occupied by a train.	Vehicle OBE

Includes Information Flows:

Information Flow	Description
arriving train information	Information for a train approaching a highway-rail intersection that may include direction and allow calculation of approximate arrival time and closure duration.
driver information	Regulatory, warning, and guidance information provided to the driver while en route to support safe and efficient vehicle operation.
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.
environmental sensor data	Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors. Operational status of the sensors is also included.
host vehicle status	Information provided to the connected vehicle on-board equipment from other systems on the vehicle platform. This includes data from on-board sensors, the current status of the powertrain, steering, and braking systems, and status of 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 Connected Vehicle environment.
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.
rail crossing application info	Rail crossing and device configuration data and warning parameters and thresholds. This flow also supports remote control of the application so the application can be taken offline, reset, or restarted.
rail crossing application status	Rail crossing application status reported by the RSE. This includes current operational state and status of the RSE and a record of rail crossing events and alerts and warnings issued.
rail crossing blockage notification	Notification that a highway-rail intersection is obstructed and supporting information.
rail crossing control data	Data required for HRI information transmitted at railroad grade crossings and within railroad operations.
rail crossing operational status	Status of the highway-rail grade crossing equipment including both the current state or mode of operation and the current equipment condition.
rail crossing request	A request for highway-rail intersection status or a specific control request intended to modify HRI operation.
rail crossing status	Status of the highway-rail intersection equipment including both the current state or mode of operation and the current equipment condition.
rail crossing warning	A warning of a train approaching or already in a highway rail intersection.
road weather advisories	Segment-specific weather and road conditions including real-time advisories of deteriorating road and weather conditions, medium-term advisories for the next 2–12 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).
track status	Current status of the wayside equipment and notification of an arriving train.
vehicle location and motion	Data describing the vehicle's location in three dimensions, heading, speed, acceleration, braking status, and size.

Application Interconnect Diagram

This is one way this application may be realized, but not the only way. There are other ways to build a given application and accomplish a stated objective.

The application interconnect diagram can be viewed in SVG or PNG format and the current format is SVG.
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Application Triples

Communications Diagram(s)	Source	Destination	Information Flow
	ITS Roadway Equipment	Roadside Equipment	arriving train information
None: Human interface	ITS Roadway Equipment	Driver	driver information
	ITS Roadway Equipment	Roadside Equipment	environmental sensor data
	ITS Roadway Equipment	Traffic Management Center	rail crossing blockage notification
	ITS Roadway Equipment	Wayside Equipment	rail crossing blockage notification
	ITS Roadway Equipment	Wayside Equipment	rail crossing operational status
	ITS Roadway Equipment	Traffic Management Center	rail crossing status
	ITS Roadway Equipment	Roadside Equipment	track status
	Roadside Equipment	Vehicle OBE	arriving train information
	Roadside Equipment	ITS Roadway Equipment	intersection infringement info
	Roadside Equipment	Traffic Management Center	rail crossing application status
	Roadside Equipment	Wayside Equipment	rail crossing blockage notification
	Roadside Equipment	Wayside Equipment	rail crossing operational status
	Roadside Equipment	Vehicle OBE	rail crossing warning
	Roadside Equipment	Vehicle OBE	road weather advisories
	Traffic Management Center	Roadside Equipment	rail crossing application info
	Traffic Management Center	ITS Roadway Equipment	rail crossing control data
	Traffic Management Center	ITS Roadway Equipment	rail crossing request
	Vehicle Databus	Vehicle OBE	host vehicle status
	Vehicle OBE	Vehicle Databus	driver update information
None: Human interface	Vehicle OBE	Driver	driver updates
	Vehicle OBE	Roadside Equipment	intersection infringement info
	Vehicle OBE	Roadside Equipment	vehicle location and motion
	Wayside Equipment	Roadside Equipment	arriving train information
	Wayside Equipment	ITS Roadway Equipment	arriving train information
	Wayside Equipment	Roadside Equipment	track status
	Wayside Equipment	ITS Roadway Equipment	track status

Requirements

Need		Requirement
N3.037	Railroad Crossing Violation Warning (RCVW) needs to warn drivers of crossing closures or potential crash-imminent situations with a crossing or oncoming train in time for the driver to take appropriate action.	3.088	Railroad Crossing Violation Warning (RCVW) shall warn the driver of a potential crash at a railroad grade crossing.
		3.089	RCVW shall calculate whether the vehicle may approach the railroad intersection while a train is present in the intersection.
		3.089a	RCVW shall warn drivers of crossing closures due to oncoming trains.
N3.038	RCVW needs information describing railroad crossing intersection geometry.	3.090	RCVW shall acquire railroad crossing intersection geometry information.
N3.039	RCVW needs weather and road conditions in the intersection area.	3.091	RCVW shall acquire weather information for the area near the railroad grade crossing intersection, including dew point temperature, wind speed, wind direction and visibility.
		3.092	RCVW shall acquire road surface condition information for the area near the railroad grade crossing intersection, including road surface temperature, roadway water depth, roadway ice depth, roadway snow depth, adjacent snow depth).
N3.040	RCVW needs dynamic vehicle telematics data and vehicle configuration data.	3.086	Railroad Crossing Violation Warning (RCVW) shall acquire dynamic vehicle telematics data, including vehicle position, speed, acceleration and heading (optionally, turn signal and steering angle).
		3.087	RCVW shall acquire vehicle configuration data, including vehicle weight, dimensions, and whether the vehicle has a trailer.
N3.041	RCVW needs to know when an approaching or crossing train(s) will cross and is crossing the RCVW-equipped at-grade crossing.	3.093	RCVW shall be able to acquire approaching train location information.
N3.042	RCVW needs to calculate an appropriate deceleration required to stop at the intersection given a set of data elements: road geometry, environmental road conditions, vehicle configuration data, and available telematics.	3.094	RCVW shall calculate the necessary deceleration required for the vehicle to stop at the intersection.
N3.104	Vehicle to Infrastructure (V2I) Safety applications need to assess their own performance, to determine errors and avoid failures when critical components fail.	3.207	Vehicle to Infrastructure (V2I) Safety applications shall analyze their own performance and enter fail-safe mode (a mode such that the application cannot provide information or perform actions that affect its host) when critical components fail.
		3.208	V2I Safety applications shall notify the driver when onboard components are offline
		3.209	V2I Safety applications shall notify its owner/operator when onboard components are offline.
N3.105	V2I Safety applications need to broadcast the performance of their host vehicle, to enable V2I applications that rely on knowing the location and/or trajectories of other vehicles.	3.210	V2I Safety applications shall broadcast the location, speed, acceleration, heading, steering wheel angle, brake system status, vehicle size and path history of host vehicles.
N3.106	V2I Safety applications need to have a common time source so that location and projected positions may be synchronized.	3.211	V2I Safety applications shall have a common time source.
N3.107	V2I Safety applications need to have positioning accurate enough to create alerts and/or warnings when warranted.	3.212	V2I Safety applications shall provide a means for any System component to determine its geographic position, in three dimensions.
N3.108	V2I Safety applications need to have positioning accurate enough to avoid false positive alerts and/or warnings.	3.213	V2I Safety applications shall provide position data together with a measure of the accuracy of the geographic position.

Related Sources

• Connected Vehicle Safety Applications for Highway Rail Intersections (HRI) ConOps, Draft, 9/21/2012
• Vehicle-to-Infrastructure (V2I) Safety Applications Concept of Operation Document, Draft, 8/10/2012
• Vehicle-to-Infrastructure (V2I) Safety Applications System Requirements Document, Final, 3/8/2013
• Vehicle-to-Infrastructure Rail Crossing Violation Warning Concept of Operations, Draft, 3/11/2015
• Vehicle-to-Infrastructure Rail Crossing Violation Warning System Requirements Specification, Draft, 3/11/2015

Security

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

Physical Object Security
Physical Object	Confidentiality	Integrity	Availability	Security Class
Security levels have not been defined yet.

In order to participate in this application, 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
Security levels have not been defined yet.