Parent Service Package: ST04
< < ST04.1 : ST04.2 : ST04.3 > >

ST04.2: Wide Area Wireless Implementation

Wide area wireless communications is used to collect data from vehicles that is used to adjust lighting.

Relevant Regions:

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 Roadway Equipment Developer	ITS Roadway 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 Roadway Equipment Developer	Traffic Management Center 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.
Traffic Management Center Developer	ITS Roadway 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.
Traffic Management Center Developer	Traffic Management Center	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 Roadway Equipment Installer	ITS Roadway 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 Roadway Equipment Owner	ITS Roadway Equipment Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
ITS Roadway Equipment Owner	ITS Roadway 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.
Traffic Management Center Installer	Traffic Management Center	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.
Traffic Management Center Owner	Traffic Management Center Installer	Installation Agreement (hide) An agreement whereupon one party installs a system on behalf of a second party.
Traffic Management Center Owner	Traffic Management Center 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 Roadway Equipment Maintainer	ITS Roadway 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 Roadway Equipment Manager	ITS Roadway 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 Roadway Equipment Manager	Maint and Constr Field Personnel	System Usage Agreement (hide) An agreement granting operational use of a system to a Human with the operates role responsible for management of the system.
ITS Roadway Equipment Owner	ITS Roadway 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 Roadway Equipment Owner	ITS Roadway 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 Roadway Equipment Owner	Traffic Management Center 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 Roadway Equipment Owner	Traffic Management Center Owner	Information Exchange 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.
ITS Roadway Equipment Owner	Traffic Management Center 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 Roadway Equipment Owner	Traffic Operations Personnel	Application Usage Agreement (hide) 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.
ITS Roadway Equipment Supplier	ITS Roadway 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.
Maint and Constr Field Personnel	ITS Roadway Equipment	Operates (hide) A Human that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This is the person at the console or behind the wheel.
Traffic Management Center Maintainer	Traffic Management Center	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.
Traffic Management Center Manager	Traffic Management Center	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.
Traffic Management Center Manager	Traffic Operations Personnel	System Usage Agreement (hide) An agreement granting operational use of a system to a Human with the operates role responsible for management of the system.
Traffic Management Center Owner	ITS Roadway 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.
Traffic Management Center Owner	ITS Roadway Equipment Owner	Information Exchange 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.
Traffic Management Center Owner	ITS Roadway 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.
Traffic Management Center Owner	Maint and Constr Field Personnel	Application Usage Agreement (hide) 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.
Traffic Management Center Owner	Traffic Management Center 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.
Traffic Management Center Owner	Traffic Management Center Manager	Operations Agreement (hide) An agreement where one entity agrees to operate a device or application on behalf of another, device/application controlling entity.
Traffic Management Center Supplier	Traffic Management Center Owner	Warranty (hide) A guarantee or promise made by one entity to another, that provides assurance of the functionality and performance of a subsystem.
Traffic Operations Personnel	Traffic Management Center	Operates (hide) A Human that is accountable for performing actions with a Resource, typically in support of one of the key operations-related roles (operates, installs, maintains). This is the person at the console or behind the wheel.

Functional

This service package includes the following Functional View PSpecs:

Physical Object	Functional Object	PSpec Number	PSpec Name
ITS Roadway Equipment	Roadway Lighting System Control	1.2.7.11	Control Lighting System
	Roadway Surveillance	1.1.1.1	Process Traffic Sensor Data
		1.1.1.7	Process Road User Protection
		1.1.2.11	Control Dynamic Lanes
		1.2.7.16	Process Signal Control Conflict Monitoring
		1.2.7.2	Monitor Roadside Equipment Operation
		1.2.7.8	Provide Device Interface to Other Roadway Devices
		1.3.1.3	Process Traffic Images
		9.3.3.1	Collect Vehicle Speed
Traffic Management Center	TMC Basic Surveillance	1.1.2.1	Process Traffic Data for Storage
		1.1.2.2	Process Traffic Data
		1.1.2.3	Update Data Source Static Data
		1.1.2.5	Process Vehicle Situation Data
		1.1.2.8	Process Roadway Environmental Data
		1.1.3	Generate Predictive Traffic Model
		1.1.4.1	Retrieve Traffic Data
		1.1.4.2	Provide Traffic Operations Personnel Traffic Data Interface
		1.1.5	Exchange Data with Other Traffic Centers
		1.2.6.1	Maintain Traffic and Sensor Static Data
		1.2.8	Collect Traffic Field Equipment Fault Data
		1.3.1.1	Analyze Traffic Data for Incidents
		1.3.2.1	Store Possible Incident Data
		1.3.2.5	Provide Current Incidents Store Interface
		1.3.2.6	Manage Traffic Routing
		1.3.4.2	Provide Traffic Operations Personnel Incident Interface
		1.3.4.5	Process Video Data
	TMC Environmental Monitoring	1.1.2.5	Process Vehicle Situation Data
		1.1.2.8	Process Roadway Environmental Data
		1.1.4.1	Retrieve Traffic Data
		1.1.4.2	Provide Traffic Operations Personnel Traffic Data Interface
		1.1.4.4	Manage Traffic Archive Data
		1.1.5	Exchange Data with Other Traffic Centers
		1.2.4.3	Output In-vehicle Signage Data
		1.2.4.7	Manage Roadway Warning System
		1.2.8	Collect Traffic Field Equipment Fault Data
	TMC Lighting System Control	1.1.4.2	Provide Traffic Operations Personnel Traffic Data Interface
	TMC Lighting System Control	1.2.4.6	Manage Lighting System
Transportation Information Center	TIC Situation Data Management	6.2.1	Collect Misc Traveler Information
		6.2.2	Collect Traffic Data
		6.2.5	Collect Situation and Sensor Data From Vehicles
		6.5.8	Provide Operational Data for Other Centers
		6.5.9	Provide Traveler Alert Interface
		6.9	Manage Traveler Info Archive Data
Vehicle	Vehicle Basic Safety Communication	3.1.1	Produce Collision and Crash Avoidance Data
		3.1.3	Process Vehicle On-board Data
		3.1.4	Communicate with Remote Vehicles
		3.1.6	Provide Vehicle Acceleration and Deceleration Inputs
		3.2.3.2	Manage Platoon Following
		3.2.3.3	Process Data for Vehicle Actuators
		3.2.3.5.1	Process General Vehicle Sensor Data
		3.2.4	Process Sensor Data for Automatic Vehicle Operations
		6.7.1.3	Process Vehicle Location Data
		6.7.1.4	Update Vehicle Navigable Map Database
		6.7.3.2	Provide Driver Information Interface
	Vehicle Environmental Monitoring	3.1.3	Process Vehicle On-board Data
		3.2.3.2	Manage Platoon Following
		3.2.3.3	Process Data for Vehicle Actuators
		3.2.3.5.1	Process General Vehicle Sensor Data
		3.2.4	Process Sensor Data for Automatic Vehicle Operations
		6.7.1.3	Process Vehicle Location Data
		6.7.1.4	Update Vehicle Navigable Map Database
		6.7.3.1	Provide Driver with Personal Travel Information
		6.7.3.2	Provide Driver Information Interface

Physical

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Includes Physical Objects:

Physical Object	Class	Description
ITS Roadway Equipment	Field	'ITS Roadway Equipment' represents the ITS equipment that is distributed on and along the roadway that monitors and controls traffic and monitors and manages the roadway. This physical object includes traffic detectors, environmental sensors, traffic signals, highway advisory radios, dynamic message signs, CCTV cameras and video image processing systems, grade crossing warning systems, and ramp metering systems. Lane management systems and barrier systems that control access to transportation infrastructure such as roadways, bridges and tunnels are also included. This object also provides environmental monitoring including sensors that measure road conditions, surface weather, and vehicle emissions. Work zone systems including work zone surveillance, traffic control, driver warning, and work crew safety systems are also included.
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.
Traffic Operations Personnel	Center	'Traffic Operations Personnel' represents the people that operate a traffic management center. These personnel interact with traffic control systems, traffic surveillance systems, incident management systems, work zone management systems, and travel demand management systems. They provide operator data and command inputs to direct system operations to varying degrees depending on the type of system and the deployment scenario.
Transportation Information Center	Center	The 'Transportation Information Center' collects, processes, stores, and disseminates transportation information to system operators and the traveling public. The physical object can play several different roles in an integrated ITS. In one role, the TIC provides a data collection, fusing, and repackaging function, collecting information from transportation system operators and redistributing this information to other system operators in the region and other TICs. In this information redistribution role, the TIC provides a bridge between the various transportation systems that produce the information and the other TICs and their subscribers that use the information. The second role of a TIC is focused on delivery of traveler information to subscribers and the public at large. Information provided includes basic advisories, traffic and road conditions, transit schedule information, yellow pages information, ride matching information, and parking information. The TIC is commonly implemented as a website or a web-based application service, but it represents any traveler information distribution service.
Vehicle	Vehicle	This 'Vehicle' physical object is used to model core capabilities that are common to more than one type of Vehicle. It provides the vehicle-based general sensory, processing, storage, and communications functions that support efficient, safe, and convenient travel. Many of these capabilities (e.g., see the Vehicle Safety service packages) apply to all vehicle types including personal vehicles (including motorcycles), commercial vehicles, emergency vehicles, transit vehicles, and maintenance vehicles. From this perspective, the Vehicle includes the common interfaces and functions that apply to all motorized vehicles. The radio(s) supporting V2V and V2I communications are a key component of the Vehicle. Both one-way and two-way communications options support a spectrum of information services from basic broadcast to advanced personalized information services. Advanced sensors, processors, enhanced driver interfaces, and actuators complement the driver information services so that, in addition to making informed mode and route selections, the driver travels these routes in a safer and more consistent manner. This physical object supports all six levels of driving automation as defined in SAE J3016. Initial collision avoidance functions provide 'vigilant co-pilot' driver warning capabilities. More advanced functions assume limited control of the vehicle to maintain lane position and safe headways. In the most advanced implementations, this Physical Object supports full automation of all aspects of the driving task, aided by communications with other vehicles in the vicinity and in coordination with supporting infrastructure subsystems.
Vehicle Characteristics	Vehicle	'Vehicle Characteristics' represents the external view of individual vehicles of any class from cars and light trucks up to large commercial vehicles and down to micromobility vehicles (MMVs). It includes vehicle physical characteristics such as height, width, length, weight, and other properties (e.g., magnetic properties, number of axles, occupants, emissions) of individual vehicles that can be sensed and measured or classified. This physical object represents the physical properties of vehicles that can be sensed by vehicle-based or infrastructure-based sensors to support vehicle automation and traffic sensor systems. The analog properties provided by this terminator represent the sensor inputs that are used to detect and assess vehicle(s) within the sensor's range to support safe AV operation and/or responsive and safe traffic management.

Includes Functional Objects:

Functional Object	Description	Physical Object
Roadway Lighting System Control	'Roadway Lighting System Control' includes field equipment that controls lighting systems for transportation facilities and infrastructure. It includes the sensors, lighting controllers, and supporting field equipment that monitors and controls lighting systems. The equipment supports control based on sensed local conditions, stored timing plans, and remote commands from a center. It monitors lighting system status and reports status to the controlling center.	ITS Roadway Equipment
Roadway Surveillance	'Roadway Basic Surveillance' monitors traffic conditions using fixed equipment such as loop detectors, CCTV cameras, , RADARs and LIDARs.	ITS Roadway Equipment
TIC Situation Data Management	'TIC Situation Data Management' manages connected vehicle situation data collection, quality controls, filtering, aggregation, and storage. Through this process, raw data reported by connected vehicles are transformed into information products that can be accessed and used to support transportation operations and traveler information.	Transportation Information Center
TMC Basic Surveillance	'TMC Basic Surveillance' remotely monitors and controls traffic sensor systems and surveillance (e.g., CCTV) equipment, and collects, processes and stores the collected traffic data. Current traffic information and other real-time transportation information is also collected from other centers. The collected information is provided to traffic operations personnel and made available to other centers.	Traffic Management Center
TMC Environmental Monitoring	'TMC Environmental Monitoring' assimilates current and forecast road conditions and surface weather information using a combination of weather service provider information, information collected by other centers such as the Maintenance and Construction Management Center, data collected from environmental sensors deployed on and about the roadway, and information collected from connected vehicles. The collected environmental information is monitored and presented to the operator. This information can be used to issue general traveler advisories and support location specific warnings to drivers.	Traffic Management Center
TMC Lighting System Control	'TMC Lighting System Control' provides the capability for traffic managers to monitor and manage the electrical lighting systems along the roadside. This capability includes implementing control plans for lighting systems that may be activated by time-of-day plans or by activating changes to the lighting based on traffic or incidents.	Traffic Management Center
Vehicle Basic Safety Communication	'Vehicle Basic Safety Communication' exchanges current vehicle characteristics, location, and motion (including past and intended maneuver) information with other vehicles in the vicinity and the infrastructure, uses that information to calculate vehicle paths, and warns the driver when the potential for an impending collision is detected. If available, map data is used to filter and interpret the relative location and motion of vehicles in the vicinity. Information from on-board sensors (e.g., radars and image processing) are also used, if available, in combination with the V2V communications to detect non-equipped vehicles and corroborate connected vehicle data. This object represents a broad range of implementations ranging from basic Vehicle Awareness Devices that only broadcast vehicle location and motion and provide no driver warnings to advanced integrated safety systems that coordinate maneuvers and may, in addition to warning the driver, provide collision warning information to support automated control functions that can support control intervention. This object can also support broadcasting other vehicle information required for passing through a specific roadway segment such as variables that describe vehicle's characteristics and parameters, driver's preferences in terms of vehicle motion and behavior, etc.	Vehicle
Vehicle Environmental Monitoring	'Vehicle Environmental Monitoring' collects data from on-board sensors and systems related to environmental conditions and sends the collected data to the infrastructure as the vehicle travels. The collected data is a byproduct of vehicle safety and convenience systems and includes ambient air temperature and precipitation measures and status of the wipers, lights, ABS, and traction control systems.	Vehicle

Includes Information Flows:

Information Flow	Description
lighting system control data	Information used to configure and control roadside lighting systems.
lighting system status	Status of roadside lighting controls including operating condition and current operational state.
traffic detector control	Information used to configure and control traffic detector systems such as inductive loop detectors and machine vision sensors.
traffic detector data	Raw and/or processed traffic detector data which allows derivation of traffic flow variables (e.g., speed, volume, and density measures) and associated information (e.g., congestion, potential incidents). This flow includes the traffic data and the operational status of the traffic detectors
traffic operator data	Presentation of traffic operations data to the operator including traffic conditions, current operating status of field equipment, maintenance activity status, incident status, video images, security alerts, emergency response plan updates and other information. This data keeps the operator appraised of current road network status, provides feedback to the operator as traffic control actions are implemented, provides transportation security inputs, and supports review of historical data and preparation for future traffic operations activities.
traffic operator input	User input from traffic operations personnel including requests for information, configuration changes, commands to adjust current traffic control strategies (e.g., adjust signal timing plans, change DMS messages), and other traffic operations data entry.
vehicle characteristics	The physical or visible characteristics of individual vehicles that can be used to detect, classify, and monitor vehicles and imaged to uniquely identify vehicles and characterize their performance (e.g., speed, occupants, emissions).
vehicle environmental data	Data from vehicle safety and convenience systems that can be used to estimate environmental and infrastructure conditions, including measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti-lock brake status, vertical acceleration and other collected vehicle system status and sensor information. The collected data is reported along with the location, heading, and time that the data was collected. Both current data and snapshots of recent events (e.g., traction control or anti-lock brake system activations) may be reported.
vehicle situation data	This flow represents vehicle snapshots that may be provided by the vehicle to support traffic and environmental conditions monitoring. Snapshots are collected by the vehicle for specific events (e.g., when a sensor exceeds a threshold) or periodically and reported based on control parameters when communications is available. Traffic-related data includes snapshots of measured speed and heading and events including starts and stops, speed changes, and other vehicle control events. Environmental data may include measured air temperature, exterior light status, wiper status, sun sensor status, rain sensor status, traction control status, anti-lock brake status, and other collected vehicle system status and sensor information. The collected data is reported along with the location, heading, and time that the data was collected.
vehicle situation data parameters	A request for vehicle situation data that includes parameters used to control the data that is reported and the flow of data reported by the vehicle. This flow identifies the type of data/snapshots that are requested and reporting parameters such as snapshot frequency, filtering criteria (data thresholds for reporting), and reporting interval.

Goals and Objectives

Associated Planning Factors and Goals

Planning Factor	Goal

Associated Objective Categories

Objective Category

Associated Objectives and Performance Measures

Objective	Performance Measure

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

Related Sources

Document Name	Version	Publication Date
None

Security

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

Physical Object Security
Physical Object	Confidentiality	Integrity	Availability	Security Class
ITS Roadway Equipment	Moderate	Moderate	Moderate	Class 2
Traffic Management Center	Moderate	Moderate	Moderate	Class 2
Transportation Information Center
Vehicle
Vehicle Characteristics

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 Roadway Equipment	Traffic Management Center	lighting system status	Moderate	Moderate	Moderate
ITS Roadway Equipment	Traffic Management Center	lighting system status	Device status information should be concealed, as an unauthorized observer could use this to reverse engineer device control systems.	Device status information needs to be available and correct, or the controlling system may take inappropriate maintenance action, costing time and money.	Device status information needs to be available and correct, or the controlling system may take inappropriate maintenance action, costing time and money.
ITS Roadway Equipment	Traffic Management Center	traffic detector data	Low	Moderate	Moderate
ITS Roadway Equipment	Traffic Management Center	traffic detector data	No impact if someone sees the data	Some minimal guarantee of data integrity is necessary for all C-ITS flows. THEA believes this to be LOW.only limited adverse effect if raw/processed traffic detector data is bad/compromised; DISC: WYO believes this to be HIGH	Only limited adverse effect of info is not timely/readily available, however without this information it will be difficult to perform traffic management activities, thus MODERATE. If not used for management, may be LOW.
Traffic Management Center	ITS Roadway Equipment	lighting system control data	Moderate	Moderate	Low
Traffic Management Center	ITS Roadway Equipment	lighting system control data	Control flows, even for seemingly innocent devices, should be kept confidential to minimize attack vectors. While an individual installation may not be particularly impacted by a cyberattack of its sensor network, another installation might be severely impacted, and different installations are likely to use similar methods, so compromising one leads to compromising all.	Control flows, even for seemingly innocent devices, should have MODERATE integrity at minimum, just to guarantee that intended control messages are received. Incorrect, corrupted, intercepted and modified control messages can or will result in target field devices not behaving according to operator intent. The severity of this depends on the type of device, which is why some devices are set MODERATE and some HIGH.	Control flow availability is related to the criticality of being able to remotely control the device. For most devices, this is MODERATE. For purely passive devices with no incident relationship, this will be LOW. All devices should have default modes that enable them to operate without backhaul connectivity, so no device warrants a HIGH.
Traffic Management Center	ITS Roadway Equipment	traffic detector control	Moderate	Moderate	Low
Traffic Management Center	ITS Roadway Equipment	traffic detector control	Control flows, even for seemingly innocent devices, should be kept confidential to minimize attack vectors. While an individual installation may not be particularly impacted by a cyberattack of its sensor network, another installation might be severely impacted, and different installations are likely to use similar methods, so compromising one leads to compromising all. DISC: THEA, WYO believe this to be LOW: encrypted, authenticated, proprietary; but should not cause severe damage if seen	Control flows, even for seemingly innocent devices, should have MODERATE integrity at minimum, just to guarantee that intended control messages are received. Incorrect, corrupted, intercepted and modified control messages can or will result in target field devices not behaving according to operator intent. The severity of this depends on the type of device, which is why some devices are set MODERATE and some HIGH.. From THEA: should be accurate and not be tampered with; could enable outside control of traffic sensors but should not cause severe harm, but could cause issues with traffic sensor data received and be detrimental to operations	Control flow availability is related to the criticality of being able to remotely control the device. For most devices, this is MODERATE. For purely passive devices with no incident relationship, this will be LOW. All devices should have default modes that enable them to operate without backhaul connectivity, so no device warrants a HIGH.. From THEA: want updates but delayed information will not be severe; should be able to operate from a previous/default control/config. DISC: WYO believes this to be MODERATE
Traffic Management Center	Traffic Operations Personnel	traffic operator data	Moderate	Moderate	Moderate
Traffic Management Center	Traffic Operations Personnel	traffic operator data	Backoffice operations flows should have minimal protection from casual viewing, as otherwise imposters could gain illicit control or information that should not be generally available.	Information presented to backoffice system operators must be consistent or the operator may perform actions that are not appropriate to the real situation.	The backoffice system operator should have access to system operation. If this interface is down then control is effectively lost, as without feedback from the system the operator has no way of knowing what is the correct action to take.
Traffic Operations Personnel	Traffic Management Center	traffic operator input	Moderate	High	High
Traffic Operations Personnel	Traffic Management Center	traffic operator input	Backoffice operations flows should have minimal protection from casual viewing, as otherwise imposters could gain illicit control or information that should not be generally available.	Backoffice operations flows should generally be correct and available as these are the primary interface between operators and system.	Backoffice operations flows should generally be correct and available as these are the primary interface between operators and system.
Transportation Information Center	Traffic Management Center	vehicle environmental data	Low	Moderate	Moderate
Transportation Information Center	Traffic Management Center	vehicle environmental data	Little abusive potential for capturing the information in this flow as designed. Could be moderate if this contains PII related information, but considered for now to not include any PII; DISC: WYO believes Vehicle to Center versions of this flow to be MODERATE as center penetrations could more easily garner aggregate user data that might be used for mischief.	This could be used for safety applications, and in areas of severe weather a corrupted field could have significant consequences; however, any vehicle will use other inputs before triggering automatic safety facilities, so MODERATE should be sufficient. DISC: WYO believes this to be HIGH.	This data is required for the system to operate properly. If this data is not available, the system cannot give accurate warning information.
Transportation Information Center	Traffic Management Center	vehicle situation data	Moderate	Moderate	Low
Transportation Information Center	Traffic Management Center	vehicle situation data	Might be able to link multiple snapshots together and compromise some element of driver/traveler privacy.	Event driven data can be used for various mobility monitoring applications, and as operational decisions may be made based on mobility conditions, this data's accuracy should be preserved or decisions may not align with real situations.	While desireable, in most application contexts the provision of a single vehicle's data through this flow is not critical.
Transportation Information Center	Vehicle	vehicle situation data parameters	Low	Moderate	Moderate
Transportation Information Center	Vehicle	vehicle situation data parameters	This isn't exactly a control flow, more like a 'suggestion flow', as the vehicle will always decide what to send. Probably no need for obfuscation.	Info should be accurate and should not be tampered so that the vehicle only discloses the correctly requested data	Parameters should be timely and readily available, but would not have severe/catastrophic consequences if not
Vehicle	Transportation Information Center	vehicle environmental data	Low	Moderate	Moderate
Vehicle	Transportation Information Center	vehicle environmental data	Little abusive potential for capturing the information in this flow as designed. Could be moderate if this contains PII related information, but considered for now to not include any PII; DISC: WYO believes Vehicle to Center versions of this flow to be MODERATE as center penetrations could more easily garner aggregate user data that might be used for mischief.	This could be used for safety applications, and in areas of severe weather a corrupted field could have significant consequences; however, any vehicle will use other inputs before triggering automatic safety facilities, so MODERATE should be sufficient. DISC: WYO believes this to be HIGH.	This data is required for the system to operate properly. If this data is not available, the system cannot give accurate warning information.
Vehicle	Transportation Information Center	vehicle situation data	Moderate	Moderate	Low
Vehicle	Transportation Information Center	vehicle situation data	Might be able to link multiple snapshots together and compromise some element of driver/traveler privacy.	Event driven data can be used for various mobility monitoring applications, and as operational decisions may be made based on mobility conditions, this data's accuracy should be preserved or decisions may not align with real situations.	While desireable, in most application contexts the provision of a single vehicle's data through this flow is not critical.
Vehicle Characteristics	ITS Roadway Equipment	vehicle characteristics
Vehicle Characteristics	ITS Roadway Equipment	vehicle characteristics

Standards

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

Name	Title	Physical Object
ITE 5301 ATC ITS Cabinet	Intelligent Transportation System Standard Specification for Roadside Cabinets	ITS Roadway Equipment
NEMA TS 8 Cyber and Physical Security	Cyber and Physical Security for Intelligent Transportation Systems	ITS Roadway Equipment
NEMA TS 8 Cyber and Physical Security		Traffic Management Center

System Requirements

No System Requirements