Parent Service Package: VS10
< < VS09.3 : VS10.1 : VS10.2 > >

VS10.1: Traditional Restricted Lane Warning Implementation

Dynamic message signs or other infrastructure-based signage is used to provide restricted lane information directly to the driver.

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 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
Basic Vehicle Manager	Driver	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.
Basic Vehicle Owner	Driver	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.
Basic Vehicle Owner	Driver	Vehicle Operating Agreement (hide) An agreement whereupon the controller of a vehicle grants another entity permission and rights to operate the vehicle.
Basic Vehicle Owner	Vehicle Owner	Expectation of Data Provision (hide) An expectation where one party believes another party will provide data on a regular and recurring basis, and that that data will be useful to the receiver in the context of the receiver's application. This thus includes some expectation of data fields, timeliness, quality, precision and similar qualities of data.
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.
Vehicle Manager	Driver	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.

Functional

This service package includes the following Functional View PSpecs:

Physical Object	Functional Object	PSpec Number	PSpec Name
ITS Roadway Equipment	Roadway Dynamic Lane Management and Shoulder Use	1.1.2.11	Control Dynamic Lanes
		1.2.7.2.2	Process Indicator Output Data for Freeways
		1.2.7.2.4	Provide Device Interface to Other Roadway Devices
		1.2.7.2.5	Process Roadway Information Data
	Roadway Traffic Information Dissemination	1.2.7.1.1	Process Indicator Output Data for Roads
		1.2.7.2.1	Monitor Roadside Equipment Operation
		1.2.7.2.2	Process Indicator Output Data for Freeways
		1.2.7.2.4	Provide Device Interface to Other Roadway Devices
		1.2.7.2.5	Process Roadway Information Data
Traffic Management Center	TMC Dynamic Lane Management and Shoulder Use	1.1.2.10	Provide Dynamic Lane Management
		1.1.2.9	Monitor Dynamic Lanes
		1.1.4.1	Retrieve Traffic Data
		1.1.4.2	Provide Traffic Operations Personnel Traffic Data Interface
		1.2.2.1	Determine Indicator State for Freeway Management
		1.2.2.2	Determine Indicator State for Road Management
		1.2.3	Determine Ramp State
		1.3.2.1	Store Possible Incident Data
		1.3.4.2	Provide Traffic Operations Personnel Incident Interface
		1.4.1	Provide Traffic Operations Personnel Demand Interface
	TMC In-Vehicle Signing Management	1.2.4.3	Output In-vehicle Signage Data
		1.2.4.4	Output Roadway Information Data
		1.2.8	Collect Traffic Field Equipment Fault Data
		1.3.2.1	Store Possible Incident Data
	TMC Restricted Lanes CV Application	1.1.2.10	Provide Dynamic Lane Management
		1.1.2.9	Monitor Dynamic Lanes
		1.1.4.2	Provide Traffic Operations Personnel Traffic Data Interface
		1.2.1	Select Strategy
		1.2.2.1	Determine Indicator State for Freeway Management
		1.2.4.1	Output Control Data for Roads
		1.2.4.3	Output In-vehicle Signage Data
		1.3.2.1	Store Possible Incident Data
		1.3.4.2	Provide Traffic Operations Personnel Incident Interface
	TMC Traffic Information Dissemination	1.1.4.1	Retrieve Traffic Data
		1.1.4.2	Provide Traffic Operations Personnel Traffic Data Interface
		1.1.4.3	Provide Direct Media Traffic Data Interface
		1.2.1	Select Strategy
		1.2.4.3	Output In-vehicle Signage Data
		1.2.4.4	Output Roadway Information 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
		1.3.2.2	Review and Classify Possible Incidents
		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

Physical

The physical diagram can be viewed in SVG or PNG format and the current format is SVG.
SVG Diagram
PNG Diagram

Display Legend in SVG or PNG

Includes Physical Objects:

Physical Object	Class	Description
Driver	Vehicle	The 'Driver' represents the person that operates a vehicle on the roadway. Included are operators of private, transit, commercial, and emergency vehicles where the interactions are not particular to the type of vehicle (e.g., interactions supporting vehicle safety applications). The Driver originates driver requests and receives driver information that reflects the interactions which might be useful to all drivers, regardless of vehicle classification. Information and interactions which are unique to drivers of a specific vehicle type (e.g., fleet interactions with transit, commercial, or emergency vehicle drivers) are covered by separate objects.
ITS Roadway Equipment	Field	'ITS Roadway Equipment' represents the ITS equipment that is distributed on and along the roadway that monitors and controls traffic and monitors and manages the roadway. 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.

Includes Functional Objects:

Functional Object	Description	Physical Object
Roadway Dynamic Lane Management and Shoulder Use	'Roadway Dynamic Lane Management and Shoulder Use' includes the field equipment, physical overhead lane signs and associated control electronics that are used to manage and control specific lanes and/or the shoulders. This equipment can be centrally controlled by a Traffic Management Center or it can be autonomous and monitor traffic conditions and demand along the roadway and determine how to change the lane controls to respond to current conditions. Lane controls can be used to change the lane configuration of the roadway, reconfigure intersections and/or interchanges, allow use of shoulders as temporary travel lanes, designate lanes for use by special vehicles only, such as buses, high occupancy vehicles (HOVs), vehicles attending a special event, etc. and/or prohibit or restrict types of vehicles from using particular lanes. Guidance and information for drivers can be posted on dynamic message signs.	ITS Roadway Equipment
Roadway Traffic Information Dissemination	'Roadway Traffic Information Dissemination' includes field elements that provide information to drivers, including dynamic message signs and highway advisory radios.	ITS Roadway Equipment
TMC Dynamic Lane Management and Shoulder Use	'TMC Dynamic Lane Management and Shoulder Use' remotely monitors and controls the system that is used to dynamically manage travel lanes, including temporary use of shoulders as travel lanes. It monitors traffic conditions and demand measured in the field and determines when the lane configuration of the roadway should be changed, when intersections and/or interchanges should be reconfigured, when the shoulders should be used for travel (as a lane), when lanes should be designated for use by special vehicles only, such as buses, high occupancy vehicles (HOVs), vehicles attending a special event, etc. and/or when types of vehicles should be prohibited or restricted from using particular lanes. It controls the field equipment used to manage and control specific lanes and the shoulders. It also can automatically notify the enforcement agency of lane control violations.	Traffic Management Center
TMC In-Vehicle Signing Management	'TMC In-Vehicle Signing Management' controls and monitors RSEs that support in-vehicle signing. Sign information that may include static regulatory, service, and directional sign information as well as variable information such as traffic and road conditions can be provided to the RSE, which uses short range communications to send the information to in-vehicle equipment. Information that is currently being communicated to passing vehicles and the operational status of the field equipment is monitored by this application. The operational status of the field equipment is reported to operations personnel.	Traffic Management Center
TMC Restricted Lanes CV Application	'TMC Restricted Lanes CV Application' manages dynamic lanes for connected vehicles. The application provides the back office functions and supports the TMC operator in establishing and managing dynamic lanes using communications to manage lane use for connected vehicles.	Traffic Management Center
TMC Traffic Information Dissemination	'TMC Traffic Information Dissemination' disseminates traffic and road conditions, closure and detour information, incident information, driver advisories, and other traffic-related data to other centers, the media, and driver information systems. It monitors and controls driver information system field equipment including dynamic message signs and highway advisory radio, managing dissemination of driver information through these systems.	Traffic Management Center

Includes Information Flows:

Information Flow	Description
driver information	Regulatory, warning, guidance, and other information provided to the driver to support safe and efficient vehicle operation.
lane management control	Information used to configure and control dynamic lane management systems.
lane management information	System status of managed lanes including current operational state, violations, and logged information. This includes lane usage information including both traditional traffic flow measures and special information associated with managed lanes such as measured passenger occupancies. It also includes the operational status of the lane management equipment.
roadway dynamic signage data	Information used to initialize, configure, and control dynamic message signs. This flow can provide message content and delivery attributes, local message store maintenance requests, control mode commands, status queries, and all other commands and associated parameters that support remote management of these devices.
roadway dynamic signage status	Current operating status of dynamic message signs.
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.

Goals and Objectives

Associated Planning Factors and Goals

Planning Factor	Goal
A. Support the economic vitality of the metropolitan area, especially by enabling global competitiveness, productivity, and efficiency;	Improve freight network
B. Increase the safety of the transportation system for motorized and nonmotorized users;	Reduce fatalities and injuries
D. Increase the accessibility and mobility of people and for freight;	Reduce congestion
E. Protect and enhance the environment, promote energy conservation, improve the quality of life, and promote consistency between transportation improvements and State and local planned growth and economic development patterns;	Protect/Enhance the Environment
F. Enhance the integration and connectivity of the transportation system, across and between modes, for people and freight;	Enhance integration and connectivity
G. Promote efficient system management and operation;	Improve efficiency
I. Improve the resiliency and reliability of the transportation system and reduce or mitigate stormwater impacts of surface transportation;	Improve resiliency and reliability

Associated Objective Categories

Objective Category
Arterial Management: Reliability
Freeway Management: Efficiency
Freeway Management: Reliability
Freight Management: Detours and Routing
Safety: Vehicle Crashes and Fatalities
System Efficiency: Cost of Congestion
System Efficiency: Delay
System Efficiency: Energy Consumption
System Efficiency: Intensity of Congestion (Travel Time Index)
System Efficiency: Travel Time
System Reliability: Non-Recurring Delay
System Reliability: Travel Time 90th/95th Percentile
System Reliability: Travel Time Buffer Index
System Reliability: Variability
Travel Weather Management: Disseminating Information

Associated Objectives and Performance Measures

Objective	Performance Measure
Annual rate of change in regional average commute travel time will not exceed regional rate of population growth through the year Y.	Average commute trip travel time (minutes).
Decrease the average buffer index for (multiple routes or trips) by X percent over Y years.	The buffer index represents the extra time (buffer) most travelers add to their average travel time when planning trips. This is the extra time between the average travel time and near-worst case travel time (95th percentile). The buffer index is stated as a percentage of the average travel time. Average buffer index or buffer time can be calculated using miles traveled as a weighting factor. Buffer time = 95th percentile travel time (min) – average travel time (min).
Decrease the buffer index for (specific travel routes) by X percent over the next Y years.	The buffer index represents the extra time (buffer) most travelers add to their average travel time when planning trips. This is the extra time between the average travel time and near-worst case travel time (95th percentile). The buffer index is stated as a percentage of the average travel time. Average buffer index or buffer time can be calculated using miles traveled as a weighting factor. Buffer time = 95th percentile travel time (min) – average travel time (min).
Improve average travel time during peak periods by X percent by year Y.	Average travel time during peak periods (minutes).
Provide freight operators with traveler alerts and alternate routes in the case of incidents, special events, weather, construction, and severe congestion at choke points on X percent of freight-significant routes by year Y.	Percent of freight-significant routes where traveler alerts and alternate route information is provided in the case of incidents, special events, weather, construction, and severe congestion at choke points.
Reduce buffer index on arterials during peak and off-peak periods by X percent in Y years.	The buffer index (represents the extra time (buffer) travelers add to their average travel time when planning trips in order to arrive on-time 95 percent of the time).
Reduce buffer index on the freeway system during peak and off-peak periods by X percent in Y years.	The buffer index (represents the extra time (buffer) travelers add to their average travel time when planning trips in order to arrive on-time 95 percent of the time).
Reduce crashes at intersections	Number of crashes and fatalities at signalized intersections
Reduce crashes at intersections	Number of crashes and fatalities at unsignalized intersections
Reduce crashes at intersections	Number of crashes and fatalities related to red-light running
Reduce crashes due to driver errors and limitations	Number of crashes and fatalities related to driver inattention and distraction
Reduce crashes due to driver errors and limitations	Number of crashes and fatalities related to driving while intoxicated
Reduce crashes due to road weather conditions	Number of crashes and fatalities related to weather conditions
Reduce crashes due to unexpected congestion	Number of crashes and fatalities related to unexpected congestion
Reduce crashes due to unsafe drivers, vehicles and cargo on the transportation system	Number of crashes and fatalities due to commercial vehicle safety violations
Reduce delay associated with incidents on the freeway system by X percent by year Y.	Hours of delay associated with incidents.
Reduce excess fuel consumed due to congestion by X percent by year Y.	Excess fuel consumed (total or per capita).
Reduce hours of delay per capita by X percent by year Y.	Hours of delay (person-hours).
Reduce hours of delay per capita by X percent by year Y.	Hours of delay per capita.
Reduce hours of delay per driver by X percent by year Y.	Hours of delay (person-hours).
Reduce hours of delay per driver by X percent by year Y.	Hours of delay per driver.
Reduce secondary crashes	Number of secondary crashes
Reduce the 90th (or 95th) percentile travel times for each route selected by X percent over Y years.	95th or 90th percentile travel times for selected routes.
Reduce the annual monetary cost of congestion per capita for the next X years.	Cost (in dollars) of congestion or delay per capita.
Reduce the average buffer time needed to arrive on-time for 95 percent of trips on (specified routes) by X minutes over Y years.	The buffer index represents the extra time (buffer) most travelers add to their average travel time when planning trips. This is the extra time between the average travel time and near-worst case travel time (95th percentile). The buffer index is stated as a percentage of the average travel time. Average buffer index or buffer time can be calculated using miles traveled as a weighting factor. Buffer time = 95th percentile travel time (min) – average travel time (min).
Reduce the average of the 90th (or 95th) percentile travel times for (a group of specific travel routes or trips in the region) by X minutes in Y years.	95th or 90th percentile travel times for selected routes.
Reduce the number of motorcyclist fatalities by X percent by year Y.	Number of motorcyclist fatalities
Reduce the number of person hours (or vehicle hours) of delay experienced by travelers on the freeway system.	Hours of delay (vehicle-hours or person-hours).
Reduce the number of person hours (or vehicle hours) of delay experienced by travelers on the freeway system.	Hours of delay per capita or driver.
Reduce the number of speeding-related fatalities by X percent by year Y.	Number of speeding-related fatalities
Reduce the rate fatalities in the region by X percent by year Y.	Rate of fatalities (rate per vehicle miles travelled (VMT))
Reduce the rate of severe injuries in the region by X percent by year Y.	Rate of serious injuries (rate per VMT)
Reduce the regional average travel time index by X percent per year.	Travel time index (the average travel time during the peak period, using congested speeds, divided by the off-peak period travel time, using posted or free-flow speeds).
Reduce the share of freeway miles at Level of Service (LOS) X by Y by year Z.	Miles at LOS X or V/C > 1.0 (or other threshold).
Reduce the total number of crashes in the region by X percent by year Y.	Total crashes per X VMT.
Reduce the total number of fatalities and severe injuries in the region by X percent by year Y.	Total fatalities per X VMT.
Reduce the total number of fatalities and severe injuries in the region by X percent by year Y.	Total severe injuries per X VMT.
Reduce the total number of fatalities in the region by X percent by year Y.	Number of fatalities
Reduce the total number of severe injuries in the region by X percent by year Y.	Number of serious injuries
Reduce the variability of travel time on specified routes by X percent during peak and off-peak periods by year Y.	Variance of travel time. Variance is the sum of the squared deviations from the mean. This can also be calculated as the standard deviation of travel time. Standard deviation is the square root of variance.
Reduce time to alert travelers of travel weather impacts (using variable message signs, 511, road weather information systems, public information broadcasts, the agency's website, Web 2.0 technologies, etc.) by X (time period or percent) in Y years.	Time from beginning of weather event to posting of traveler information on (variable message signs, 511, Road Weather Information Systems, public information broadcasts etc.).
Reduce time to alert travelers of travel weather impacts (using variable message signs, 511, road weather information systems, public information broadcasts, the agency's website, Web 2.0 technologies, etc.) by X (time period or percent) in Y years.	Time from beginning of weather event to posting of traveler information on agency website.
Reduce total energy consumption per capita for transportation by X percent by year Y.	Total energy consumed per capita for transportation.
Reduce total fuel consumption per capita for transportation by X percent by year Y.	Total fuel consumed per capita for transportation.
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by all transient events such as traffic incidents, special events, and work zones.	Total person hours of delay during scheduled and/or unscheduled disruptions to travel.
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by scheduled events, work zones, or system maintenance by x hours in y years.	Travel time delay during scheduled and/or unscheduled disruptions to travel.
Reduce total person hours of delay (or travel-time delay per capita) by time period (peak, off-peak) caused by unscheduled disruptions to travel.	Total person hours of delay during scheduled and/or unscheduled disruptions to travel.

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

Needs and Requirements

Need		Functional Object	Requirement
01	Traffic Operations needs to be able to provide information about lane restrictions (such as HOV, eco-lanes, transit or emergency vehicle only) to connected vehicles.	Roadway Traffic Information Dissemination	01	The field element shall include dynamic message signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. vehicle restrictions, or lane open/close).
			03	The field element shall provide operational status for the driver information systems equipment (DMS, HAR, etc.) to the center.
			04	The field element shall provide fault data for the driver information systems equipment (DMS, HAR, etc.) to the center for repair.
			05	The field element shall provide dynamic message sign information to roadside equipment for transmission to connected vehicles to support in-vehicle signing.
		TMC Dynamic Lane Management and Shoulder Use	09	The center shall activate lane management field equipment that is used to dynamically manage specific lanes and shoulders.
			10	The center shall identify lane use restrictions, prohibiting specific types of vehicles (e.g., commercial vehicles) from specific lanes.
			11	The center shall designate lanes for use by special vehicles only, such as buses, high occupancy vehicles (HOVs), or vehicles attending a special event.
		TMC In-Vehicle Signing Management	04	The center shall receive system operational status from field equipment that supports in-vehicle signage communications.
		TMC In-Vehicle Signing Management	06	The center shall format and output restricted lane information to field equipment that supports in-vehicle signage communications.
		TMC Restricted Lanes CV Application	01	The Center shall notify drivers and vehicles when a travel lane is a dedicated bus lane.
		TMC Restricted Lanes CV Application	09	The center shall provide current lane access requirements and restrictions to roadside equipment to provide to connected vehicles.
		TMC Traffic Information Dissemination	01	The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
			03	The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).
			04	The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.
			09	The center shall collect current lane configurations status for the driver information systems equipment (DMS, HAR, etc.).
02	Traffic Operations needs to be able to provide information about lane restrictions (such as HOV, eco-lanes, transit or emergency vehicle only) directly to drivers.	Roadway Dynamic Lane Management and Shoulder Use	04	The field element shall provide guidance and information to drivers regarding current lane configuration and status.
		Roadway Traffic Information Dissemination	01	The field element shall include dynamic message signs for dissemination of traffic and other information to drivers, under center control; the DMS may be either those that display variable text messages, or those that have fixed format display(s) (e.g. vehicle restrictions, or lane open/close).
			03	The field element shall provide operational status for the driver information systems equipment (DMS, HAR, etc.) to the center.
			04	The field element shall provide fault data for the driver information systems equipment (DMS, HAR, etc.) to the center for repair.
			05	The field element shall provide dynamic message sign information to roadside equipment for transmission to connected vehicles to support in-vehicle signing.
		TMC Dynamic Lane Management and Shoulder Use	09	The center shall activate lane management field equipment that is used to dynamically manage specific lanes and shoulders.
			10	The center shall identify lane use restrictions, prohibiting specific types of vehicles (e.g., commercial vehicles) from specific lanes.
			11	The center shall designate lanes for use by special vehicles only, such as buses, high occupancy vehicles (HOVs), or vehicles attending a special event.
		TMC Restricted Lanes CV Application	10	The center shall provide current lane access requirements and restrictions to roadside equipment to provide directly to drivers.

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	High	Moderate	Class 3

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	Driver	driver information	Not Applicable	High	Moderate
ITS Roadway Equipment	Driver	driver information	This data is sent to all drivers and is also directly observable, by design.	This is the primary signal trusted by the driver to decide whether to go through the intersection and what speed to go through the intersection at; if it’s wrong, accidents could happen.	If the lights are out you have to get a policeman to direct traffic – expensive and inefficient and may cause a cascading effect due to lack of coordination with other intersections.
ITS Roadway Equipment	Traffic Management Center	lane management information	Moderate	Moderate	Moderate
ITS Roadway Equipment	Traffic Management Center	lane management information	May contain PII, may contain source data describing device control and sensed status that if captured could be used in the commission of a crime or breaking of traffic laws or regulations.	Information related to violations must be correct so that incorrect accusations are not made. Information related to device status and control must be correct to avoid wasted maintenance efforts.	More or less important depending on the context. Could even be LOW if areas of minimal import, depending on local policies.
ITS Roadway Equipment	Traffic Management Center	roadway dynamic signage status	Moderate	Moderate	Moderate
ITS Roadway Equipment	Traffic Management Center	roadway dynamic signage status	Device status information should not be available, as those with criminal intent may use this information toward their own ends.	Data is intended to feed dissemination channels, either C-ITS messages or DMS or other channels, so it should generally be correct as it is distributed widely and any forgery or corrupted data will have widespread impact.	Failure of this flow affects traveler information dissemination, the importance of which varies with the data contained in the flow and the scenario. Could be LOW in many instances.
Traffic Management Center	ITS Roadway Equipment	lane management control	Moderate	High	Moderate
Traffic Management Center	ITS Roadway Equipment	lane management 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.	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	roadway dynamic signage data	Moderate	Moderate	Moderate
Traffic Management Center	ITS Roadway Equipment	roadway dynamic signage data	Device control information should not be available, as those with criminal intent may use this information toward their own ends.	Data is intended to feed dissemination channels, either C-ITS messages or DMS or other channels, so it should generally be correct as it is distributed widely and any forgery or corrupted data will have widespread impact.	Occasional outages of this flow will delay dissemination of the data to travelers (the eventual end user) which could have significant impacts on travel, both safety and mobility impacts.
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.

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	Known Issues	Physical Object
ISO 24100 Probe Vehicle Data Protection	Intelligent transport systems -- Basic principles for personal data protection in probe vehicle information services		Traffic Management Center
ITE 5201 ATC	Advanced Transportation Controller		ITS Roadway Equipment
ITE 5202 ATC Model 2070	Model 2070 Controller Standard	Out of date (high): Standard has been rescinded and is not recommended for use by the original issuing SDO.	ITS Roadway Equipment
ITE 5301 ATC ITS Cabinet	Intelligent Transportation System Standard Specification for Roadside Cabinets		ITS Roadway Equipment
ITE 5401 ATC API	Application Programming Interface Standard for the Advanced Transportation Controller		ITS Roadway Equipment
NEMA TS 8 Cyber and Physical Security	Cyber and Physical Security for Intelligent Transportation Systems		ITS Roadway Equipment
NEMA TS 8 Cyber and Physical Security			Traffic Management Center
NEMA TS2 Traffic Controller Assemblies	Traffic Controller Assemblies with NTCIP Requirements		ITS Roadway Equipment
NEMA TS4 Hardware Standards for DMS	Hardware Standards for Dynamic Message Signs (DMS) With NTCIP Requirements		ITS Roadway Equipment

System Requirements

No System Requirements