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SU07: ITS Communications

This service package provides secure, reliable communications between ITS devices. It provides the layered protocols and communications services and includes the physical network plant and network hardware that supports ITS communications. It also encompasses security services that protect communications and preserve privacy, and the management services that support network management.

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

Enterprise
Functional
Physical
Goals and Objectives
Needs and Requirements
Sources
Security
Standards
System Requirements

Enterprise

Development Stage Roles and Relationships
(hide)

Source	Destination	Role/Relationship
ITS Communications Equipment Developer	ITS Communications Equipment	Develops (hide) An Enterprise creates the target Resource or Document. The Enterprise that engineers a traffic signal controller (ITS Roadway Equipment), or designs a vehicle (Basic Vehicle) or authors a technical standard will have the Develops role.
ITS Communications Equipment Developer	ITS Object Developer	Application Interface Specification (hide) 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.
ITS Communications Equipment Developer	Other ITS Objects Developer	Application Interface Specification (hide) 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.
ITS Object Developer	ITS Communications Equipment Developer	Application Interface Specification (hide) 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.
ITS Object Developer	ITS Object	Develops (hide) An Enterprise creates the target Resource or Document. The Enterprise that engineers a traffic signal controller (ITS Roadway Equipment), or designs a vehicle (Basic Vehicle) or authors a technical standard will have the Develops role.
ITS Object Developer	Other ITS Objects Developer	Application Interface Specification (hide) 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.
ITS Object Developer	Pathway Communications Unit Developer	Application Interface Specification (hide) 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.
ITS Object Developer	Roadside Communications Unit Developer	Application Interface Specification (hide) 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.
ITS Object Developer	Wide Area Information Disseminator System Developer	Application Interface Specification (hide) 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.
Other ITS Objects Developer	ITS Communications Equipment Developer	Application Interface Specification (hide) 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.
Other ITS Objects Developer	ITS Object Developer	Application Interface Specification (hide) 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.
Other ITS Objects Developer	Other ITS Objects	Develops (hide) An Enterprise creates the target Resource or Document. The Enterprise that engineers a traffic signal controller (ITS Roadway Equipment), or designs a vehicle (Basic Vehicle) or authors a technical standard will have the Develops role.
Other ITS Objects Developer	Pathway Communications Unit Developer	Application Interface Specification (hide) 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.
Other ITS Objects Developer	Roadside Communications Unit Developer	Application Interface Specification (hide) 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.
Pathway Communications Unit Developer	ITS Object Developer	Application Interface Specification (hide) 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.
Pathway Communications Unit Developer	Other ITS Objects Developer	Application Interface Specification (hide) 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.
Pathway Communications Unit Developer	Pathway Communications Unit	Develops (hide) An Enterprise creates the target Resource or Document. The Enterprise that engineers a traffic signal controller (ITS Roadway Equipment), or designs a vehicle (Basic Vehicle) or authors a technical standard will have the Develops role.
Roadside Communications Unit Developer	ITS Object Developer	Application Interface Specification (hide) 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.
Roadside Communications Unit Developer	Other ITS Objects Developer	Application Interface Specification (hide) 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.
Roadside Communications Unit Developer	Roadside Communications Unit	Develops (hide) An Enterprise creates the target Resource or Document. The Enterprise that engineers a traffic signal controller (ITS Roadway Equipment), or designs a vehicle (Basic Vehicle) or authors a technical standard will have the Develops role.
Wide Area Information Disseminator System Developer	Other ITS Objects Developer	Application Interface Specification (hide) 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.
Wide Area Information Disseminator System Developer	Wide Area Information Disseminator System	Develops (hide) An Enterprise creates the target Resource or Document. The Enterprise that engineers a traffic signal controller (ITS Roadway Equipment), or designs a vehicle (Basic Vehicle) or authors a technical standard will have the Develops role.

Installation Stage Roles and Relationships
(hide)

Source	Destination	Role/Relationship
ITS Communications Equipment Installer	ITS Communications Equipment	Installs (hide) An Enterprise performs the initial delivery, integration and configuration of the target Resource. This might be a system integrator, a state DOT Enterprise performing its own installation, or a device supplier that performs on-site installation.
ITS Communications Equipment Owner	ITS Communications Equipment Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
ITS Communications Equipment Owner	ITS Communications Equipment Verifier	Verification Agreement (hide) An agreement for one party to verify that a system owned by the second party operates according to the system's design.
ITS Object Installer	ITS Object	Installs (hide) An Enterprise performs the initial delivery, integration and configuration of the target Resource. This might be a system integrator, a state DOT Enterprise performing its own installation, or a device supplier that performs on-site installation.
ITS Object Owner	ITS Object Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
ITS Object Owner	ITS Object Verifier	Verification Agreement (hide) An agreement for one party to verify that a system owned by the second party operates according to the system's design.
Other ITS Objects Installer	Other ITS Objects	Installs (hide) An Enterprise performs the initial delivery, integration and configuration of the target Resource. This might be a system integrator, a state DOT Enterprise performing its own installation, or a device supplier that performs on-site installation.
Other ITS Objects Owner	Other ITS Objects Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
Other ITS Objects Owner	Other ITS Objects Verifier	Verification Agreement (hide) An agreement for one party to verify that a system owned by the second party operates according to the system's design.
Pathway Communications Unit Installer	Pathway Communications Unit	Installs (hide) An Enterprise performs the initial delivery, integration and configuration of the target Resource. This might be a system integrator, a state DOT Enterprise performing its own installation, or a device supplier that performs on-site installation.
Pathway Communications Unit Owner	Pathway Communications Unit Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
Pathway Communications Unit Owner	Pathway Communications Unit Verifier	Verification Agreement (hide) An agreement for one party to verify that a system owned by the second party operates according to the system's design.
Roadside Communications Unit Installer	Roadside Communications Unit	Installs (hide) An Enterprise performs the initial delivery, integration and configuration of the target Resource. This might be a system integrator, a state DOT Enterprise performing its own installation, or a device supplier that performs on-site installation.
Roadside Communications Unit Owner	Roadside Communications Unit Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
Roadside Communications Unit Owner	Roadside Communications Unit Verifier	Verification Agreement (hide) An agreement for one party to verify that a system owned by the second party operates according to the system's design.
Wide Area Information Disseminator System Installer	Wide Area Information Disseminator System	Installs (hide) An Enterprise performs the initial delivery, integration and configuration of the target Resource. This might be a system integrator, a state DOT Enterprise performing its own installation, or a device supplier that performs on-site installation.
Wide Area Information Disseminator System Owner	Wide Area Information Disseminator System Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
Wide Area Information Disseminator System Owner	Wide Area Information Disseminator System Verifier	Verification Agreement (hide) An agreement for one party to verify that a system owned by the second party operates according to the system's design.

Operations and Maintenance Stage Roles and Relationships
(hide)

Source	Destination	Role/Relationship
ITS Communications Equipment Maintainer	ITS Communications Equipment	Maintains (hide) An Enterprise administers the hardware and software that comprise the target Resource. The entity that takes the 'maintains' role typically is delegated authority by the entity with the "Owns" or "Manages" roles, depending on the environment. The maintainer interacts with the target Resource so as to keep that Resource in the Operational state.
ITS Communications Equipment Manager	ITS Communications Equipment	Manages (hide) The Enterprise that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This authority is typically delegated by the Enterprise with the "Owns" role, and commonly accomplished by delegation to Human E-Objects with the "operates", "installs" or "maintains" roles, depending on the context.
ITS Communications Equipment Owner	ITS Communications Equipment Maintainer	System Maintenance Agreement (hide) An agreement for one party to maintain the operational status of a system on behalf of the party with ownership control of the system.
ITS Communications Equipment Owner	ITS Communications Equipment Manager	Operations Agreement (hide) An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
ITS Communications Equipment Owner	ITS Object Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
ITS Communications Equipment Owner	ITS Object Owner	Information Provision Agreement (hide) An agreement where one party agrees to provide information to another party. This is a unidirectional agreement.
ITS Communications Equipment Owner	ITS Object User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
ITS Communications Equipment Owner	Other ITS Objects Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
ITS Communications Equipment Owner	Other ITS Objects Owner	Information Provision Agreement (hide) An agreement where one party agrees to provide information to another party. This is a unidirectional agreement.
ITS Communications Equipment Owner	Other ITS Objects User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
ITS Communications Equipment Supplier	ITS Communications Equipment Owner	Warranty (hide) A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance of a subsystem.
ITS Object Maintainer	ITS Object	Maintains (hide) An Enterprise administers the hardware and software that comprise the target Resource. The entity that takes the 'maintains' role typically is delegated authority by the entity with the "Owns" or "Manages" roles, depending on the environment. The maintainer interacts with the target Resource so as to keep that Resource in the Operational state.
ITS Object Manager	ITS Object	Manages (hide) The Enterprise that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This authority is typically delegated by the Enterprise with the "Owns" role, and commonly accomplished by delegation to Human E-Objects with the "operates", "installs" or "maintains" roles, depending on the context.
ITS Object Owner	ITS Communications Equipment Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
ITS Object Owner	ITS Communications Equipment User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
ITS Object Owner	ITS Object Maintainer	System Maintenance Agreement (hide) An agreement for one party to maintain the operational status of a system on behalf of the party with ownership control of the system.
ITS Object Owner	ITS Object Manager	Operations Agreement (hide) An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
ITS Object Owner	Other ITS Objects Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
ITS Object Owner	Other ITS Objects User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
ITS Object Owner	Pathway Communications Unit Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
ITS Object Owner	Pathway Communications Unit User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
ITS Object Owner	Roadside Communications Unit Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
ITS Object Owner	Roadside Communications Unit User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
ITS Object Owner	Wide Area Information Disseminator System Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
ITS Object Owner	Wide Area Information Disseminator System User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
ITS Object Supplier	ITS Object Owner	Warranty (hide) A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance of a subsystem.
Other ITS Objects Maintainer	Other ITS Objects	Maintains (hide) An Enterprise administers the hardware and software that comprise the target Resource. The entity that takes the 'maintains' role typically is delegated authority by the entity with the "Owns" or "Manages" roles, depending on the environment. The maintainer interacts with the target Resource so as to keep that Resource in the Operational state.
Other ITS Objects Manager	Other ITS Objects	Manages (hide) The Enterprise that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This authority is typically delegated by the Enterprise with the "Owns" role, and commonly accomplished by delegation to Human E-Objects with the "operates", "installs" or "maintains" roles, depending on the context.
Other ITS Objects Owner	ITS Communications Equipment Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Other ITS Objects Owner	ITS Communications Equipment User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Other ITS Objects Owner	ITS Object Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Other ITS Objects Owner	ITS Object User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Other ITS Objects Owner	Other ITS Objects Maintainer	System Maintenance Agreement (hide) An agreement for one party to maintain the operational status of a system on behalf of the party with ownership control of the system.
Other ITS Objects Owner	Other ITS Objects Manager	Operations Agreement (hide) An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
Other ITS Objects Owner	Pathway Communications Unit Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Other ITS Objects Owner	Pathway Communications Unit User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Other ITS Objects Owner	Roadside Communications Unit Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Other ITS Objects Owner	Roadside Communications Unit User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Other ITS Objects Supplier	Other ITS Objects Owner	Warranty (hide) A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance of a subsystem.
Pathway Communications Unit Maintainer	Pathway Communications Unit	Maintains (hide) An Enterprise administers the hardware and software that comprise the target Resource. The entity that takes the 'maintains' role typically is delegated authority by the entity with the "Owns" or "Manages" roles, depending on the environment. The maintainer interacts with the target Resource so as to keep that Resource in the Operational state.
Pathway Communications Unit Manager	Pathway Communications Unit	Manages (hide) The Enterprise that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This authority is typically delegated by the Enterprise with the "Owns" role, and commonly accomplished by delegation to Human E-Objects with the "operates", "installs" or "maintains" roles, depending on the context.
Pathway Communications Unit Owner	ITS Object Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Pathway Communications Unit Owner	ITS Object Owner	Information Exchange and Action Agreement (hide) An agreement to exchange information, which may include data or control information; the exact information to be exchanged may vary from agreement to agreement. This also includes a specification for action that shall, should or may be taken by one party in response to this information.
Pathway Communications Unit Owner	ITS Object User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Pathway Communications Unit Owner	Other ITS Objects Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Pathway Communications Unit Owner	Other ITS Objects Owner	Information Exchange and Action Agreement (hide) An agreement to exchange information, which may include data or control information; the exact information to be exchanged may vary from agreement to agreement. This also includes a specification for action that shall, should or may be taken by one party in response to this information.
Pathway Communications Unit Owner	Other ITS Objects User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Pathway Communications Unit Owner	Pathway Communications Unit Maintainer	System Maintenance Agreement (hide) An agreement for one party to maintain the operational status of a system on behalf of the party with ownership control of the system.
Pathway Communications Unit Owner	Pathway Communications Unit Manager	Operations Agreement (hide) An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
Pathway Communications Unit Supplier	Pathway Communications Unit Owner	Warranty (hide) A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance of a subsystem.
Roadside Communications Unit Maintainer	Roadside Communications Unit	Maintains (hide) An Enterprise administers the hardware and software that comprise the target Resource. The entity that takes the 'maintains' role typically is delegated authority by the entity with the "Owns" or "Manages" roles, depending on the environment. The maintainer interacts with the target Resource so as to keep that Resource in the Operational state.
Roadside Communications Unit Manager	Roadside Communications Unit	Manages (hide) The Enterprise that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This authority is typically delegated by the Enterprise with the "Owns" role, and commonly accomplished by delegation to Human E-Objects with the "operates", "installs" or "maintains" roles, depending on the context.
Roadside Communications Unit Owner	ITS Object Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Roadside Communications Unit Owner	ITS Object Owner	Information Exchange and Action Agreement (hide) An agreement to exchange information, which may include data or control information; the exact information to be exchanged may vary from agreement to agreement. This also includes a specification for action that shall, should or may be taken by one party in response to this information.
Roadside Communications Unit Owner	ITS Object User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Roadside Communications Unit Owner	Other ITS Objects Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Roadside Communications Unit Owner	Other ITS Objects Owner	Information Exchange and Action Agreement (hide) An agreement to exchange information, which may include data or control information; the exact information to be exchanged may vary from agreement to agreement. This also includes a specification for action that shall, should or may be taken by one party in response to this information.
Roadside Communications Unit Owner	Other ITS Objects User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Roadside Communications Unit Owner	Roadside Communications Unit Maintainer	System Maintenance Agreement (hide) An agreement for one party to maintain the operational status of a system on behalf of the party with ownership control of the system.
Roadside Communications Unit Owner	Roadside Communications Unit Manager	Operations Agreement (hide) An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
Roadside Communications Unit Supplier	Roadside Communications Unit Owner	Warranty (hide) A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance of a subsystem.
Wide Area Information Disseminator System Maintainer	Wide Area Information Disseminator System	Maintains (hide) An Enterprise administers the hardware and software that comprise the target Resource. The entity that takes the 'maintains' role typically is delegated authority by the entity with the "Owns" or "Manages" roles, depending on the environment. The maintainer interacts with the target Resource so as to keep that Resource in the Operational state.
Wide Area Information Disseminator System Manager	Wide Area Information Disseminator System	Manages (hide) The Enterprise that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This authority is typically delegated by the Enterprise with the "Owns" role, and commonly accomplished by delegation to Human E-Objects with the "operates", "installs" or "maintains" roles, depending on the context.
Wide Area Information Disseminator System Owner	Other ITS Objects Maintainer	Maintenance Data Exchange Agreement (hide) An agreement that states one entity will provide data related to maintenance of an application component to the other entity.
Wide Area Information Disseminator System Owner	Other ITS Objects Owner	Information Provision Agreement (hide) An agreement where one party agrees to provide information to another party. This is a unidirectional agreement.
Wide Area Information Disseminator System Owner	Other ITS Objects User	Service Usage Agreement (hide) An agreement between the provider of a service and a user. Stipulates the terms and conditions of service usage.
Wide Area Information Disseminator System Owner	Wide Area Information Disseminator System Maintainer	System Maintenance Agreement (hide) An agreement for one party to maintain the operational status of a system on behalf of the party with ownership control of the system.
Wide Area Information Disseminator System Owner	Wide Area Information Disseminator System Manager	Operations Agreement (hide) An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
Wide Area Information Disseminator System Supplier	Wide Area Information Disseminator System Owner	Warranty (hide) A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance of a subsystem.

Functional

This service package includes the following Functional View PSpecs:

Physical Object	Functional Object	PSpec Number	PSpec Name
ITS Communications Equipment	ITS Communications Privacy Protection	10.1.5	Protect End-User Privacy
ITS Communications Equipment	ITS Communications Services	10.1.6	Support ITS Communications Services
ITS Object	ITS Communications Support	10.6.4.1	Support ITS Object Communications
	ITS Security Support	10.1.4.3	Provide Object Misbehavior Detection
	ITS Security Support	10.6.4.3	Support ITS Object Security
Pathway Communications Unit	PCU Communications	6.8.5.2	Manage Pathway Communications
Roadside Communications Unit	RCU Radio Communications	10.6.2.3	Provide Roadside Communications Services
Wide Area Information Disseminator System	WAID Broadcast Services	6.11.1	Collect Data for Dissemination
		6.11.2	Manage Dissemination of Traveler Information
		6.11.3	Disseminate Traveler Information

Physical

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Includes Physical Objects:

Physical Object	Class	Description
ITS Communications Equipment	Support	'ITS Communications Equipment' includes the communications hardware and software that supports secure, reliable communications. It provides the layered protocols and communications services and includes the physical network plant and network hardware that supports ITS communications. It also encompasses security services that protect communications and the management services that support network management. This physical object allows transportation stakeholders that are implementing their own communications solution to represent this implementation in their ITS architecture. The communications capabilities provided by this physical object are frequently purchased from a third party provider. When communications is a purchased service, the hardware and software included in this physical object are largely transparent to transportation stakeholders and may be transparent to the ITS architecture.
ITS Object	ITS	The general 'ITS Object' includes core capabilities common to any class of object.
Other ITS Objects	ITS	Representing other ITS Objects, 'Other ITS Objects' provides a source and destination for information exchange between ITS Objects.
Pathway Communications Unit	Field	The 'Pathway Communications Unit' provides wireless communications between the pathway infrastructure (either indoor or outdoor) and nearby mobile devices; Communications with adjacent field equipment (including other PCUs) and back-office centers that monitor and control the PCU are also supported. The PCU provides basic radio communications supporting the lower layers of the OSI stack (TransNet and SubNet layers of the ARC-IT communications model). Importantly, it can also serve as a reference for mobile devices to determine their position more accurately (e.g., through triangulation or other means).
Roadside Communications Unit	Field	The 'Roadside Communications Unit' provides wireless communications between roadside infrastructure and nearby equipped vehicles. Communications with adjacent field equipment (including other RCUs) and back office centers that monitor and control the RCU are also supported. It provides basic radio communications supporting the lower layers of the OSI stack (TransNet and SubNet layers of the ARC-IT communications model). See also 'Connected Vehicle Roadside Equipment' that extends the basic RCU radio communications functionality with a full communications stack and support for locally installed ITS Applications
Wide Area Information Disseminator System	Support	The 'Wide Area Information Disseminator System' represents the center based systems and communications equipment that is used to send messages to equipped vehicles using wide-area wireless communications such as satellite radio, terrestrial FM broadcast subcarrier, or cellular data networks.

Includes Functional Objects:

Functional Object	Description	Physical Object
ITS Communications Privacy Protection	'ITS Communications Privacy Protection' operates as a proxy, obscuring the originator's network address, and tagging the message so that it can return replies to the originator.	ITS Communications Equipment
ITS Communications Services	'ITS Communications Services' supports secure, reliable data communications between connected devices. It includes the network devices as well as any required physical cabling and supporting hardware that represent the communications infrastructure that originate, route, and terminate data communications between a source and a destination. Applications specific protocols are layered over more general communications protocols to support the communications. Network management keeps the network configured and working reliably. Security services ensure the data received is correct and from an authentic source.	ITS Communications Equipment
ITS Communications Support	'ITS Communications Support' provides means to send and receive messages to and from other ITS Objects. It provides mechanisms for scheduling and prioritizing communications traffic. It may also provide relay functions.	ITS Object
ITS Security Support	'ITS Security Support' provides communications and system security functions to the ITS Object, including privacy protection functions. It may include firewall, intrusion management, authentication, authorization, profile management, identity management, cryptographic key management. It may include a hardware security module and security management information base.	ITS Object
PCU Communications	'PCU Communications' provides basic radio communications between pathway infrastructure and nearby mobile devices. Communications with adjacent field equipment (including other PCUs) and back office centers that monitor and control the PCU are also supported. It supports the lower layers of the OSI stack, specifically the TransNet and SubNet layers of the ARC-IT communications model. Message relay capabilities are also included to improve radio communications range, reliability, and performance.	Pathway Communications Unit
RCU Radio Communications	'RCU Radio Communications' provides basic radio communications between roadside infrastructure and nearby equipped vehicles and mobile devices. Communications with adjacent field equipment (including other RCUs) and back office centers that monitor and control the RCU are also supported. It supports the lower layers of the OSI stack, specifically the TransNet and SubNet layers of the ARC-IT communications model. Message relay capabilities are also included to improve radio communications range, reliability, and performance.	Roadside Communications Unit
WAID Broadcast Services	'WAID Broadcast Services' provides wide-area digital broadcast of traveler information to transportation users across a region. It collects traveler information of interest to clientele (either subscribers or the general public) and distributes the traveler information using broadcast data services that are offered in context with entertainment and other data services.	Wide Area Information Disseminator System

Includes Information Flows:

Information Flow	Description
ITS information	Information exchanged by ITS systems or devices. This flow is a super-flow; it does not define specific content since it represents any information flow exchange between physical objects defined in ARC-IT. This information flow represents any of those information flows and inherits the data content and attributes defined in the more detailed information flows.
local ITS information	ITS information that is relevant to a particular location (e.g., a particular intersection) that is of interest to receivers near that location. This flow is a super-flow; it does not define specific content since it represents any information flow exchange using short range communications between physical objects defined in ARC-IT. This includes both broadcast communications to all receivers within range and unicast communications targeted for a specific receiver. This information flow represents any of those information flows and inherits the data content and attributes defined in the more detailed information flows.
local ITS information relay	Local ITS information that is relayed to improve range, reliability, and/or performance. This flow is a super-flow; it does not define specific content since it represents any relay of 'local ITS information' using short range communications. See 'local ITS information' for more information.
proxied ITS information	Information exchanged by ITS systems or devices where the sender is isolated from the receiver by an intermediary that acts as a proxy for the sender. This flow is a super-flow; it does not define specific content since it represents any information flow exchange between physical objects defined in ARC-IT. This information flow represents any of those information flows and inherits the data content and attributes defined in the more detailed information flows.
wide area broadcast ITS information	ITS information of broad interest that is relevant over a wide area and suitable for broadcast distribution. This flow is a super-flow; it does not define specific content since it represents all wide-area broadcast information flows defined in ARC-IT. This information flow represents any of those broadcast information flows and inherits the data content and attributes defined in the more detailed information flows.

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
C. Increase the security of the transportation system for motorized and nonmotorized users;	Improve security

Associated Objective Categories

Objective Category
Safety: Vehicle Crashes and Fatalities
Security: Crime
Security: Terrorism, Natural Disasters, and Hazardous Material Incidents

Associated Objectives and Performance Measures

Objective	Performance Measure
Enhance tracking and monitoring of sensitive Hazmat shipments	Number of Hazmat shipments tracked in real-time
Reduce exposure due to Hazmat & homeland security incidents	Homeland security incident response time
Reduce exposure due to Hazmat & homeland security incidents	Number of Hazmat incidents
Reduce exposure due to Hazmat & homeland security incidents	Number of homeland security incidents
Reduce security risks to motorists and travelers	Number of critical sites with security surveillance
Reduce security risks to motorists and travelers	Number of security incidents on roadways
Reduce security risks to transit passengers and transit vehicle operators	Number of security incidents at transit facilities
Reduce security risks to transit passengers and transit vehicle operators	Number of security incidents on transit vehicles
Reduce security risks to transit passengers and transit vehicle operators	Number of transit facilities and vehicles under security surveillance
Reduce security risks to transportation infrastructure	Number of critical sites with hardened security enhancements
Reduce security risks to transportation infrastructure	Number of critical sites with security surveillance
Reduce security risks to transportation infrastructure	Number of security incidents on transportation infrastructure
Reduce the total number of crashes in the region by X percent by year Y.	Total crashes per X VMT.

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	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).	ITS Communications Privacy Protection	01	The ITS Communications Equipment shall accept messages to be proxied from one ITS Object to another ITS Object.
			02	The ITS Communications Equipment shall forward proxied messages to their destination ITS Object.
			03	The ITS Communications Equipment shall maintain the source network address of a proxied message.
			04	The ITS Communications Equipment shall use the source network address to return responses for proxied messages.
		ITS Communications Support	01	The ITS Object shall include a mechanism for scheduling message transmission distinct from the message's originating Functional Object.
			02	The ITS Object shall include a mechanism for prioritizing message transmission based on input from originating Functional Object.
			03	The ITS Object shall include a mechanism for relaying messages received using one physical communications medium to other ITS Objects using that same medium.
			04	The ITS Object shall include a mechanism for relaying messages received using one physical communications medium to other ITS Objects using a different medium.
		ITS Security Support	04	The ITS Object shall provide a mechanism for on-board applications to digitally sign messages using keys secured by the CCMS' trust authority.
			05	The ITS Object shall provide a mechanism for on-board applications to authenticate messages secured by the CCMS' trust authority.
			06	The ITS Object shall provide a mechanism for on-board applications to encrypt messages using keys secured by the CCMS' trust authority.
			07	The ITS Object shall provide a mechanism for on-board applications to decrypt messages using keys secured by the CCMS' trust authority.
		PCU Communications	01	The field device shall provide radio communications between pathway equipment and nearby traveler safety devices and traveler devices.
		RCU Radio Communications	01	The field device shall provide radio communications between roadside infrastructure and nearby equipped vehicles.
02	System users need their messages to be communicated to their intended recipients.	ITS Communications Services	01	The center shall send messages to destinations specified in the message.
02		WAID Broadcast Services	01	The support system shall provide wide-area digital broadcast of traveler information to transportation users across a region.

Related Sources

Document Name	Version	Publication Date
ITS User Services Document		1/1/2005
Security Credential Management System Design	Draft	4/13/2012
Vehicle-to-Vehicle Communications: Readiness of V2V Technology for Application		8/1/2014

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
ITS Communications Equipment	High	High	High	Class 5
ITS Object	High	High	High	Class 5
Other ITS Objects	High	High	High	Class 5
Pathway Communications Unit	High	High	High	Class 5
Roadside Communications Unit	High	High	High	Class 5
Wide Area Information Disseminator System	High	High	High	Class 5

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
Source	Destination	Information Flow	Basis	Basis	Basis
ITS Communications Equipment	ITS Object	ITS information	High	High	High
ITS Communications Equipment	ITS Object	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Communications Equipment	ITS Object	proxied ITS information	High	High	High
ITS Communications Equipment	ITS Object	proxied ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Communications Equipment	Other ITS Objects	ITS information	High	High	High
ITS Communications Equipment	Other ITS Objects	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Communications Equipment	Other ITS Objects	proxied ITS information	High	High	High
ITS Communications Equipment	Other ITS Objects	proxied ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Object	ITS Communications Equipment	ITS information	High	High	High
ITS Object	ITS Communications Equipment	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Object	Other ITS Objects	ITS information	High	High	High
ITS Object	Other ITS Objects	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Object	Pathway Communications Unit	local ITS information	High	High	High
ITS Object	Pathway Communications Unit	local ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Object	Roadside Communications Unit	ITS information	High	High	High
ITS Object	Roadside Communications Unit	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
ITS Object	Wide Area Information Disseminator System	ITS information	High	High	High
ITS Object	Wide Area Information Disseminator System	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Other ITS Objects	ITS Communications Equipment	ITS information	High	High	High
Other ITS Objects	ITS Communications Equipment	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Other ITS Objects	ITS Object	ITS information	High	High	High
Other ITS Objects	ITS Object	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Other ITS Objects	Pathway Communications Unit	local ITS information	High	High	High
Other ITS Objects	Pathway Communications Unit	local ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Other ITS Objects	Roadside Communications Unit	local ITS information	High	High	High
Other ITS Objects	Roadside Communications Unit	local ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Pathway Communications Unit	ITS Object	local ITS information	High	High	High
Pathway Communications Unit	ITS Object	local ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Pathway Communications Unit	Other ITS Objects	local ITS information	High	High	High
Pathway Communications Unit	Other ITS Objects	local ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Roadside Communications Unit	ITS Object	ITS information	High	High	High
Roadside Communications Unit	ITS Object	ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Roadside Communications Unit	Other ITS Objects	local ITS information	High	High	High
Roadside Communications Unit	Other ITS Objects	local ITS information	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Roadside Communications Unit	Other ITS Objects	local ITS information relay	High	High	High
Roadside Communications Unit	Other ITS Objects	local ITS information relay	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE or LOW confidentiality requirement, then this could be MODERATE or LOW, as appropriate.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.	This value is derived from the specific flows satisfied by this super-flow. HIGH is set because some flows may require it. If the implementation includes flows with only a MODERATE integrity requirement, then this could be MODERATE.
Wide Area Information Disseminator System	Other ITS Objects	wide area broadcast ITS information	Not Applicable	Moderate	Low
Wide Area Information Disseminator System	Other ITS Objects	wide area broadcast ITS information	By definition this is publicly broadcast data.	The distribution of this data is intended to be very large, as such the impact of corrupted data will be significant. Probably not HIGH, as there are other distribution channels for this data.	There are multiple channels for the delivery of this information, so if this one is not available, others will work. Could consider raising this to MODERATE if it is the sole mechanism able to reach certain areas.

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.

Name	Title	Physical Object
CTI 4001 RSU	Roadside Unit (RSU) Standard	Roadside Communications Unit
FIPS 140-2	Security Requirements for Cryptographic Modules	ITS Object
ISO 21217 Architecture	Intelligent transport systems -- Communications access for land mobiles (CALM) -- Architecture	ITS Object

System Requirements

System Requirement		Need
001	The system shall include a mechanism for scheduling message transmission distinct from the message's originating Functional Object.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
002	The system shall include a mechanism for prioritizing message transmission based on input from originating Functional Object.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
003	The system shall include a mechanism for relaying messages received using one physical communications medium to other ITS Objects using that same medium.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
004	The system shall include a mechanism for relaying messages received using one physical communications medium to other ITS Objects using a different medium.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
005	The system shall provide a mechanism for on-board applications to digitally sign messages using keys secured by the CCMS' trust authority.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
006	The system shall provide a mechanism for on-board applications to authenticate messages secured by the CCMS' trust authority.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
007	The system shall provide a mechanism for on-board applications to encrypt messages using keys secured by the CCMS' trust authority.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
008	The system shall provide a mechanism for on-board applications to decrypt messages using keys secured by the CCMS' trust authority.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
009	The system shall provide radio communications between roadside infrastructure and nearby equipped vehicles.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
010	The system shall provide radio communications between pathway equipment and nearby traveler safety devices and traveler devices.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
011	The system shall accept messages to be proxied from one ITS Object to another ITS Object.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
012	The system shall forward proxied messages to their destination ITS Object.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
013	The system shall maintain the source network address of a proxied message.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
014	The system shall use the source network address to return responses for proxied messages.	01	System operators, vehicle operators, support system operators, PID users need to be able communicate with other users without divulging their identity, location or other Personally Identifiable Information (PII).
015	The system shall send messages to destinations specified in the message.	02	System users need their messages to be communicated to their intended recipients.
016	The system shall provide wide-area digital broadcast of traveler information to transportation users across a region.	02	System users need their messages to be communicated to their intended recipients.